Itemized Rc Gearing Calculator
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Max SpeedNameMotorMain Reduction (MR)Gearbox/Transmission Transfer Case Final Drive RatioOverall Gear ReductionTire Diameter inchesBatteryMax SpeedGearing/Tire
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1st gearReduction (TR)Reduction (TCR)1st Gear2nd gear1st gear
2nd gear
Torque Change
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TurnsKvpinionSpurRatioTransmissionratioratioCellsVoltagefrom stock
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4.80mphAxial Scx10 II540 35t1736kv13564.31/1
Axial AX10 (Scx10, Wraith)
NoneAR44 II42.00/1
Axial BFGoodrich All Terrain TA KO2 1.9
4.65in2s LiPo Max8.4v4.80mph100.00%
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3.07mph
Scx10 II HH Recomendation
Axial 540 55t1111kv13564.31/1Axial AX10 (Scx10, Wraith)NoneAR44 II42.00/1Axial BFGoodrich All Terrain TA KO2 1.94.65in2s LiPo Max8.4v3.07mph100.00%
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4.91mphScx10 II slow 48p GrearsHolmes Hobbies TorqueMaster Pro 550 21t2200kv99610.67/1Axial AX10 (Scx10, Wraith)NoneAR44 II104.00/1Axial BFGoodrich All Terrain TA KO2 1.94.65in4s LiPo Max16.8v4.91mph247.62%
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11.84mphAxial Bomber540 35t1736kv12645.33/1Axial Bomber/YetiBomberAR60 Stock30.22/1Axial BFGoodrich Baja TA KR2 2.25.50in3s LiPo Max12.6v11.84mph100.00%
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21.66mphBomber HH RecomendationGeneric 4500kv4500kv9687.56/1Axial Bomber/YetiBomberAR60 Stock42.81/1Axial BFGoodrich Baja TA KR2 2.25.50in3s LiPo Max12.6v21.66mph141.67%
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26.30mphBomber slow 48p gearsGeneric 4500kv4500kv12645.33/1Axial Bomber/YetiBomberAR60 Stock30.22/1Axial BFGoodrich Baja TA KR2 2.25.50in3s LiFe Max10.8v26.30mph100.00%
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Safe to edit by:
Typing anythingDrop DownNo
Number
Number
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This calculator is mostly adjusted with dropdown menus, The spur and pinion, and name are typed in manualy. To add a part to the drop down lists you can add them from the Data sheet found at the bottom.
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Because most manufactures don't provide KV ratings for brushed motors I have used Comparable motors from other brands.
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For most people 2 to 4 mph will be a walking speed; 4 to 5 mph will be a very fast walk or jog; and anything over 5 mph will be jogging or running.
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There are more tabs at to bottom with more features, if you want more data try the advanced calculator.
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