Rc gear ratio calculator The gear ratio (aka secondary ratio) is determined by dividing the number of teeth on the spur gear by the number of teeth on the pinion gear. Find setups and setup tips for the RC10 SC6. To get a more accurate measure, you can test the RC car’s top speed using a GPS device or a radar gun. Drift Setup Guides. 6. Find setups and setup tips for the 22SCT 3. 122. Dec 14, 2023 · The calculator determines the gear ratio based on the number of teeth on the spur gear versus the pinion gear. [wps_products title="RC Car 100km/h Club Tee, RC Car 100mph Club Tee, My RC Car is Faster than your Car!" Feb 8, 2024 · When the internal gear ratio iGR of the RC car is known, the calculation of the final gear ratio gets easier, because the teeth of the spur gear and pinion are all you need. " R/C Vehicle Speed Calculator. Important: cars with just a pinion and spur and no transmission have no internal ratio! If you are doing calculations, you can treat their internal ratio as "1. Find setups and setup tips for the XO-1 from Traxxas from racers around the world. 0 from TLR from racers around the world. Mar 30, 2021 · Calculate the gear ratio, transmission ratio, drive reduction ratio, RPM, and top speed of your RC car based on pinion and spur gear sizes, motor, battery, and tire parameters. Wheel Circumference (MM) Find setups and setup tips for the YD-2 from Yokomo from racers around the world. Enter the Brushless Motor KV value. Feb 12, 2020 · This pinion gear mates with the differentials ring gear, that ultimately drives the differential. Mar 4, 2014 · If you use the straight axles with the optional transfer case gear set and the stock 14T pinion the gear ratio is 40. Great for all types of RC racing and… Home of leading RC racing apps including the So Dialed RC Setup App & Race Log, Gear Calculator Pro, Pill Insert Calculator, Fuel Mileage Calculator, and Crawl Scorekeeper. Find setups and setup tips for the RC10 B7/B7D from Team Associated from racers around the world. Saint Charles, MO 63301 Internet Sales: 636-352-2045 Find setups and setup tips for the RD2. Our RC Drift Car Gear Ratio Calculator helps you figure out the best gear setup for your car. 07 ratio would really go fast, but acceleration may be sluggish. As mentioned earlier, the gear ratio is the number of teeth on the pinion gear relative to the spur gear. A handy gear ratio calculator and oil viscosity calculator (for temperature changes) are built right in! RECORD ALL THE THINGS Save your settings for suspension, shocks, drivetrain, tires, differentials, weights, body, motors/engines, electronics, and hop-up parts with just a few taps. There had Nov 29, 2008 · It calculates your cars inline speed in kph or mph with different gear ratios, motor rpm, and tyre diameter. This calculator is for entertainment value only. Using this tool should help you find the optimal gear ratio and motor RPM to yield the longest flight and/or best gov performance. Find setups and setup tips for the Mini-T 2. iPhone. 88 ring and pinion). The M-07 Concept transmission ratio is 3. hobbiesww Find setups and setup tips for the BD12 from Yokomo from racers around the world. Changing the gear ratio is an easy way to alter the performance of your RC car. This heli has two belt driven gear sets connect by a common drive shaft. In order to calculate the gear ratio, the Motor pinion gear mated to the spur gear must have the ratio calculate first. Behold, the RC Gear Calculator Pro!. It is very troublesome to calculate every time, so I developed this application which can be used offline. A simple gear ratio calculator to find the speed and mechanical advantage of a gear system of spur gears. Find setups and setup tips for the R12. To do further tuning of gear ratios, FDR, and rollout, check out our free Gear Calculator Pro App. 74 times the pinion gear, and therefore the motor shaft, does. Find setups and setup tips for the Assassin Mini from Mardave from racers around the world. Affiliate Disclaimer RC Gearing. The internal drive ratio can be found in the documentation that comes with your vehicle. See? Electric gear ratio = (Number of main gear teeth / Number of pinion teeth)*(Number of motor poles The pinion gear in an RC car is the gear that is attached to your motor, and the spur gear is the gear that the pinion drives. HobbiesWW 計齒比App, 大機細機版面測試完成! RC Gear Ratio Calculator (齒比計算機) https://play. Lower Gear Ratio: A lower gear ratio (smaller pinion or larger spur gear) will decrease the speed of the motor's output shaft. Just like the calculator built into our main app, the Gear Calculator Pro allows you to enter your current gearing and then a new pinion and spur combination, so you can see exactly how much the new gears will affect your ratio as a percentage. With this app, you can easily calculate your gear ratio and understand the impact of gear changes on your speed, acceleration, and motor load. Smiths Falls, ON. Final Drive Ratio (FDR) / Final Gear Ratio (FGR) (Spur tooth / Pinion tooth ) x Internal Ratio - which can be found in the chassis manual Find setups and setup tips for the X4 '22 from XRAY from racers around the world. Find setups and setup tips for the SP1 from RC MAKER from racers around the world. RCScoring. gear ratio = spur / pinion. Some guys like to run really high gear ratios with lots of power and I can see people keeping the portals and using the optional gear set for some serious torque to the wheels. Once you have determined the transmission ratio, you can match your gear ratio to anyone else’s. Scroll through the list of popular transmissions to find yours. Any good? Regards, Brett. For example the bigger gear is 150T, smaller gear is 13T. Find setups and setup tips for the 22X-4 Elite from TLR from racers around the world. Training data sources: proprietary technical documentation and setup guides, publicly-available data from RC manufacturers, and other licensed or publicly-available data sources Or, you can check our RC Gear Ratio Calculator which has many internal ratios listed for popular cars. Learn how to adjust toe, anti-squat, roll center, gear ratios, and much more, to get your ride to the finish line first. This calculator assists in fine-tuning the performance of RC cars by calculating the gear ratio based on the number of teeth on the drive and driven gears. For example: An overall ratio of 19. How do I calculate the gear ratio for a given pinion size? Use the spur gear teeth divided by the pinion gear teeth. 5%), so you'll know how much speed and load on the motor to expect. The gear ratio calculator uses 2 combinations of gears to output an overall drive ratio. 😉 Second, it’s simply your mechanical gear ratio times half the number of poles in your electric motor. RC Gear Calculator Pro is a free Android application developed by So Dialed Racetech, under the category of Utilities & Tools. Use the calculator below to figure out various gear specifications given two of the following; tooth count, diameter, and/or pitch. Whether you’re planning a setup change, preparing for a race, or just curious about your RC car’s potential, this calculator considers real-world factors like surface conditions and mechanical efficiency MPH Calculator for RC Cars. 0:1 . May 29, 2022 · The calculation of the final drive ratio of the RC car is [No. Calculate RPM for Given Speed(MPH), Rear Gear Ratio, and Trans Gear Ratio 3725 Harry S. Selecting the appropriate internal gear ratio is crucial for optimizing your RC car’s R/C Calculations. Compare before and after gears, see internal ratios, and save your setups with this handy app. Support. 72”, but what does that number mean? RC Gear Calculator Pro lets you enter your current gears and the gears you’re changing to, so you can see that it’s a 15% change in ratio (for example), which is much more useful when determining how much load your motor can handle or how much it will affect Purchase a few different tooth of spur and pinion (Usually more pinion than spur) and test it out. Enter the values manually or select from pre-defined options and get instant results. If you want more acceleration and less top speed, use a smaller pinion gear (fewer teeth). Find setups and tuning guides for RC drag racing. Then it uses the ratio along with other factors to estimate the top speed of your RC vehicle with a given pinion/spur combination. Or, check out our free apps that help you set up your car, find the right gear ratio, calculate speed, adjust suspension, and much more. 1 from ARC from racers around the world. RC Speed Run. See the impact as a percentage (e. Headroom is the lower motor RPM relative to max motor RPM. Apr 28, 2023 · Requested on RCTalk, added field to enter a transmission gear ratio (if applicable). Dec 1, 2024 · An RC car gear ratio calculator is a specialized tool designed to help radio-controlled car enthusiasts optimize their vehicle's gearing setup. RPM's per volt Enter the LiPo cells in series Enter the amount of teeth for the pinion gear and spur gear Enter the amount of teeth for the pinion hear and spur gear of the differential Enter the diameter of the tires in mm. Find setups and setup tips for the RC10 T6. 57 FDR ** To determine your gear ratio, you divide the spur gear tooth count by the pinion gear tooth count: Spur Gear / Pinion Gear = Gear Ratio 86 / 23 = 3. The spur is sometimes integrated with a slipper clutch or with a differential. The next gear ratio is an internal transmission ratio or most commonly a Dec 14, 2023 · Learn how to use an online tool or app to optimize your RC vehicle's speed and torque by adjusting the gear ratio. 0:1 gear ratio is well balanced and can provide a good combination of speed and torque. 6 RC Gear Calculator; Radio Control Info Articles. All values can also be displayed in metric! It has a gear ratio calculator as well! SPECS: The tyre size limit is 2cm minimum. Shifting at 5000rpm from 3rd gear into 4th (76mph), sees engine speed drop by almost 1500rpm, to a little over 3500rpm. Please fill in tyre dimension, transmission gear ratios and wanted final drive (differential gear ratio) to see what speed you can expect. What is a 7. Model Weight (incl. Using the number of tooth of the bigger gear, divide the number of teeth of the smaller gear. ) Jul 31, 2024 · Following our gear ratio equation, we can say that this gear train has a gear ratio of 40:10, 40/10, or simply 4/1 (or 4). When set to low gear (high numerical value), - Acceleration (rise) is fast. In RC racing, the Final Drive Ratio (FDR) is the ratio of how many times the pinion gear rotates for every rotation of the car's wheels. g. Now that you have the internal ratio, you can calculate the final drive ratio (FDR). 48:1 in first gear. It can provide excellent top speed but may sacrifice some low-end torque. Lower gear ratios can provide higher acceleration performance, while higher gear ratios offer higher top speeds. Easily calculate your gear ratio, and to really understand the effect of your change enter your "before and after" gears and see what percentage change it will produce, so you'll know how much the new gear ratio will change your speed and acceleration and how much load it will put on the motor. Reply. In contrast, a lower gear ratio will provide more torque but less top speed. EX. Calculate Gear Diameter: Feb 24, 2020 · Gear ratio: How to calculate the gear ratio? It is very easy. This gear ratio means that the input gear would need to rotate 4 full turns for the output gear to complete one full rotation. Thanks Find setups and setup tips for the MTC2 from Mugen Seiki from racers around the world. of spur gears x No. Nov 26, 2002 · RC Helicopter General Discussions - How to calculate gear ratio? - Can anyone tell me how to calculate the gear ratio with a four gear set up? I have enclosed a picture to show what I need to find out. Keep in mind that this estimation does not consider factors such as air resistance, rolling resistance, and the terrain, which will affect the actual top speed. Truman Blvd. Enough gear ratios to cover all RC car needs. 6 Other Ratio: 1 Spur Tooth Count: 87 Nov 30, 2024 · Simply enter your motor’s KV rating, battery voltage, gear ratio, and wheel size to get instant speed calculations in both km/h and mph. Nov 18, 2024 · Gear ratio, rollout, and FDR. Find RC setups and guides for XRAY RC cars, and check out our free apps to help you set them up, find the right gears, calculate speed, and more. RC Talk is an independent RC community, for all RC enthusiasts to come together and discuss and share their experiences with all types of nitro, electric, and gas powered RC's. Most calculators just give you a number, like “your gear ratio is 5. Host Facility The Galipeau Centre 361 Queen St. Check the box if the gear is on the same shaft as the gear above it, leave it unchecked if the gear meshes with the gear above it. For example, a 20 tooth pinion and 80 tooth spur equates to an 80/20 = 4. Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. This calculator is used to find the approximate maximum speed of your brushless-powered R/C vehicle. This site contains a collection of tools for radio-controlled vehicles, specifically brushless-powered: speed calculators, system wiring diagrams, battery pack wiring, gear selection, motor and vehicle data, etc. Drive / less Battery / without Drive): You can chose whether your entry is the - All Up Weight (incl. Many factors have been taken into consideration to make this calculator as accurate as possible, but certain variables like vehicle weight, battery quality, drivetrain drag, etc can have an effect on the actual speed. In other heli's calculating the drive ratio is as simple as dividing the main gear size by the pinion size. © Copyright 2022 All rights reserved. 4. Step 1: Select transmission from the drop down list or, if it's not in the list and you know the gear ratios of your transmission, enter them below. What formula do you use to determine A to D gear ratio. RC Gear Calculator Pro. 5 internal drive ratio = 8. 99 in the App Store What is it about? This app is the best gearing tool for your RC car. May 16, 2023 · What is RC Gear Ratio Calculator? Introduction: The RC Gear Ratio Calculator is a valuable tool used by remote control (RC) enthusiasts to determine the gear ratio for their RC vehicles. 5:1 . ‎Easily calculate your gear ratio, and to really understand the effect of your Also calculated is the new gearing you would need in order to return back to your original gear ratio when going to a bigger or smaller tire. Pan Car / F1 Setup Guides. Find setups and setup tips for the Limitless from ARRMA from racers around the world. I have all the "tooth" counts of each gear. More Gear and Axle Guides: Differential Locker Comparison - A detailed comparison of popular differentials and lockers. Don't guess at gearing. Track setup changes, log races, calculate ratios, and get setup tips - supports hundreds of on- and off-road cars. Here’s how it works: The Radio Control RC Info Calculator can calculate anything from speed, Power type, to watts per pound for Radio Control RC Boats, Planes and Cars. The motor will rotate Oct 25, 2023 · Some common internal gear ratios include: 2. Search. Gear Ratio. It means when the small gear rotate 11. Jan 20, 2013 · So what is it and why is it different from the gear ratio we’ve been talking about? First, it’s not different…I’ll show you. You can alter your car’s gear ratio by using a different pinion or spur gear. Mechanical Efficiency : The percentage of power successfully transmitted through the gear system, accounting for losses due to friction and other factors. You can use the ratio to figure out if An Octura X642 would have a Diameter of 42mm and pitch ratio of 1. Apr 24, 2011 · Here is my storm with a fully charged 3s lipo and just over a 1:1 roll out Differential Ratio: 1 Transmission Ratio: 2. This calculator enables users to input the number of teeth on the pinion gear and spur gear, and calculates the gear ratio. Do take note to use the same pitch of gear when installing and mesh them correctly. Find out the basics of RC gearing, the effects of different parameters, and the best setups for various RC types. This app quickly calculates ranges of RC car gear ratios for you to compare. 72 will give you incredible acceleration, but low top speed. The motor will rotate more times for a given distance traveled. There is a new one to figure out the correct gear ratio!How? Let’s check out this essay now!Stop Calculate Gear Ratio! Using the Distance to Figure out the Correct Gear Ratio!This topic is not be concerned in the plastic tire. Find setups and setup tips for the XB2C '22 from XRAY from racers around the world. Find setups and setup tips for the XB4 '23 from XRAY from racers around the world. $4. A 7. For more top speed, use a larger pinion gear. Gear ratio is determined solely by the number of teeth on each gear. 8 MOD gears (which are very close to 32 pitch), but there are Setup Guides Setup Troubleshooting Glossary RC Gear Ratio Calculator RC Pill Insert Calculator. When someone talks about a car's gear ratio, they are usually referring to the ratio between the spur gear and the pinion gear. Strange Engineering Ring and Pinion Gear Ratio Calculator. of Pinion gears x Secondary gear ratio] You can calculate with the above. RC Deals Black Friday Deals! Support. New Feature So Dialed Just Made Setup Tracking Much Easier. 1 gear ratio is relatively high and is suitable for high-speed applications in RC cars. 0 DC from TLR from racers around the world. Use this RC Speed Calculator to find the estimate top speed of your RC car/truck. The first set is the main gear set which is generally starting at the motor or nitro engine. Jul 21, 2024 · - Car gear ratio database - Finial gear ratio - Internal gear ratio - Dynamic gear ratio chart - Easy screen capture for share gear ratio chart Calculation moving distance you can accurately set the gear ratio for different types vehicle(egTouring, M-Chassis, F-1, 1:12) Pinion and spur gears - What one do you make do you make bigger for speed, and what one for torque? Or what one smaller? Watch on and find out!Pinion gears:h Find RC setups and guides for Tekno RC cars, and check out our free apps to help you set them up, find the right gears, calculate speed, and more. Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device The ratio of driven gear teeth to driving gear teeth, determining the mechanical advantage of the system. Click "Calculate" to find your new effective gear ratio and the gear ratio needed to return your vehicle back to stock gearing. (72 spur ÷ 21 pinion) x 2. Find setups and setup tips for the TC4 from Team Associated from racers around the world. Find setups and setup tips for the MD1. 2. 3D Printing (2) General Electric (45) The results are relative to your KV and gear ratio against the normal head speed for your size model. In RC racing (and generally,) gear pitch simply refers to the size of the teeth on a gear. RC Speed Calculator Pro. Jan 20, 2024 · Welcome to RC Talk. by Fluent AAC. Use the following calculator to determine the gear ratio of your radio control vehicle. The RDX transmission ratio is 2. Visit the specific RC – Radio Control Section on the above menu bar for more information or to learn how to get the most out of each calculator. For example, the default figures in the chart are for a stock ratio transmission as fitted to a Type 1, 1303S (3. Gear Ratio Calculator. RC Deals. Download RC Gear Calculator Pro and enjoy it on your iPhone, iPad and iPod touch. com/store/apps/details?id=com. Setup Guides Setup Troubleshooting Glossary RC Gear Ratio Calculator RC Pill Insert Calculator. Example: 30% head room would be 100 - 70 = 30. Find RC setups and guides for Custom Works RC cars, and check out our free apps to help you set them up, find the right gears, calculate speed, and more. 61. 3. Dec 15, 2023 · The RC Car Gearing Calculator serves as a pivotal tool for RC (Remote Control) car enthusiasts, aiding in determining the optimal gear ratio for their vehicles. Just like the gear ratio calculator on our site, but this one is wired into your setup, so when you change your pinion or spur settings, you'll have the option to open the calculator to see what impact those changes will make, and any new values for pinion, spur or Final Drive Ratio can be applied back to your setup with Aug 21, 2008 · I'm helping a friend build a Razor 600e. To find your car's internal ratio: If you're using our RC Setup App, the internal ratio is probably already provided in the Drivetrain section of your setups; Our RC Gear Ratio Calculator has many internal ratios listed for popular cars get the best drive for your RC helicopter! fast & reliable simulation - no more guessing most comprehensive motor database ☆ over 1 million calculations per month eCalc - heliCalc - the most reliable Helicopter Calculator on the Web Using standard-sized tires to calculate your FDR, first divide your vehicle's spur gear by the pinion gear, then multiply that result by the internal drive ratio of the car. Find setups and setup tips for the X4 '23 from XRAY from racers around the world. Find setups and setup tips for the TT-01E Car from Tamiya from racers around the world. Whether you're into racing or bashing, this app is a must-have. We welcome all RC enthusiasts, both new and old, racers and bashers that share a common goal - a willingness to help and learn. 4:1 so um how do i calculate gear ratio in say a rampage where it has 2 idler gears (4 gear total) so it has stock 25 ->35 connected on same shaft25 ->25 the front and rear diffs The 22X-4 transmission ratio is 2. Lastly, take the 2 resulting gear ratios and multiply them together. You can gear for a higher top speed at the expense of slower acceleration, or vice versa. ca ‎Easily calculate your gear ratio, final drive ratio, or rollout. For example, the gearbox shown below has a 20T top gear and 48T diff gear: 48 ÷ 20 = 2. google. You will often see 0. Calculate ratios, FDR, or rollout for electric cars and trucks in various scales and classes. This app is designed to help RC racers calculate their gear ratio with ease. 0 ratio. The higher this number, the more times the pinion rotates per turn of the wheels, producing more torque and acceleration but less top speed. Input your stock and new tires sizes along with your original gear ratio. Any pointers on how to work this out? Figure out which pinion gear to use on your car with our RC Gear Recommender App, and calculate your gear ratio with our Gear Ratio Calculator App. This gear calculator will provide expected (theoretical) speed at certain RPM through all gears. Blog App Updates. Enter your current and new pinion and spur gears, and see the percentage change in gearing and top speed. Find setups and setup tips for the SCT410SL from Tekno from racers around the world. Find setups and setup tips for the DR10 from Team Associated from racers around the world. Calculate your RC car's gear ratio, final drive ratio, and rollout with this online tool. Find setups and setup tips for the X1 '23 from XRAY from racers around the world. A higher gear ratio results in a higher top speed but less low-end torque. The most common gear pitches today are 32, 48, and 64, but some gears are classified by "MOD" instead of pitch. Reference. Jan 2, 2025 · Download RC Gear Calculator Pro for Android: a free tools app developed by So Dialed Racetech with 10,000+ downloads. +2. Enter your gears "before and after" to see the real impact of your gear and tire changes. The ratio of the spur to the pinion is typically known as the gear ratio (spur teeth / pinion teeth). 0:1 gear ratio good for? A 7. Learn more about gear ratios: Rollout, Final Drive Ratio, and Transmission Ratio. Drive) - the empty weight (without Battery) - the battery weight will be added to your entry May 22, 2005 · Electric On-Road - Gear Ratio Calculation Software - Hi all, seeing a lot of people don't really know how/having problem when they try to calculate the gear ratio/final drive/rollout, I've decided to make a small contribution to the RC community by writing a RC gear ratio/rollout/whatever calculator software. . Imagine your RC car is like a bike with two gears: one gear (the pinion) is connected to the motor, and the other gear (the spur) gets driven by the pinion. In this case, the formula for calculating the total ratio changes to: Setup Guides Setup Troubleshooting Glossary RC Gear Ratio Calculator RC Pill Insert Calculator. To record your setups, tests, and races, check out our RC Setup App . Next, calculate the gear ratio of the differential setup. Find, manage, and share RC setups easily. Find setups and setup tips for the SP1-F from RC MAKER from racers around the world. It's time to ditch those clunky gear ratio charts - now you have it all and more in a handy app! ‍ With the So Dialed Gear Calculator Pro app, enter your current gears, and easily see what ratios you could achieve with a range of other pinions and spurs, and see the actual difference those gears will make - for instance, you could see that a 24-tooth pinion would be an 18% change in ratio Dec 15, 2023 · The RC Car Gearing Calculator serves as a pivotal tool for RC (Remote Control) car enthusiasts, aiding in determining the optimal gear ratio for their vehicles. The gear ratio is 150 divided by 13, about 11. 0 from Yokomo from racers around the world. 4:1. Note: the pitch of the gears does not affect Jul 31, 2023 · What is an 8. Nov 25, 2024 · RC Gear Calculator Pro: Easily Calculate Your Gear Ratio. 4 The transmission ratio is 2. Higher Gear Ratio: A higher gear ratio (larger pinion or smaller spur gear) will increase the speed of the motor's output shaft. 53 times, the bigger gear rotate for one Standard Crank; Alfine Hub. 53. RC Gear Calculator Pro is a handy tool for RC racing enthusiasts. Calculate the Gear Ratio Needed to run a certain 1/4 mile. The Outlaw 4 transmission ratio is 2. Forget the slow web calculators with limited features. 5. Jan 1, 2004 · Radio Control gear ratio basics and R/C gear ratio chart. Jan 19, 2020 · RC Gear Ratio Calculator. For help calculating your gear ratio, Final Drive Ratio (FDR), or rollout, try our Gear Calculator Pro App. Learn Tuning. Any engine rpm. Learn Nov 18, 2024 · Gear ratio, rollout, and FDR Jun 23, 2021 · Easily calculate your gear ratio, final drive ratio, or rollout Find setups and setup tips for the 22 5. 0:1. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Enter your Gear Ratio (Rotor Pinion Teeth : Motor Pinion Teeth). Miniature models recommend a drive ratio 17:6 to 18. Gear ratio, rollout, and FDR Use this calculator to determine your gear ratio and vehicle’s speed in any gear and any engine RPM for best performance. Find setups and setup tips for the 22S No Prep Drag Car from TLR from racers around the world. Stop using the traditional method to calculate the gear ratio. If you're looking for an RC speed calculator Nov 24, 2024 · RC Gear Calculator Pro: Calculate your gear ratio with ease. Fuel to Oil Mix Ratio Calculator; Nitro RC Speed Calculator; Classifieds; Gear Ratio 101: Learn the Pik Wan Rd, 223號 TAK TIN ESTATE, TAK KING HOUSE, FLAT 314 藍田 Hong Kong Aug 9, 2010 · RC Giant Scale Cars - gear ratio calculator - soi know how to calculate ratio gear a/ gear b = ratio 35 spur + 25 pinion = 1. 1 gear ratio good for? An 8. 8:1 for the motor we have installed. Find setups and setup tips for the EXECUTE XQ2S 4WD from Xpress from racers around the world. Press the Button [calculate]. Use zero for Converter Slip if manual Transmission Jan 19, 2020 · RC Gear Ratio Calculator. 2 from Team Associated from racers around the world. These ratios cater to different tracks and driving styles. Not to be used in place of real testing. Also solve for RPM, Tire Size and MPH. Reactions: joshludden. This tool combines motor specifications, gear sizes, and wheel dimensions to determine the ideal gear ratio for specific applications, while providing speed estimates and performance recommendations. 48p version: This particular version focuses on 48P gears (48p refers to the pitch of each tooth on the pinion gear). 74:1 (This means the spur gear will rotate once for every 3. jjxedy bkfbekc lavd keqazwaxt crfqmxs zuymlmf pcjg pqfpdp hjx wjbm