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Approved Axles, Wheels and Gears:
- Rear axle may be 3/32” or 1/8” diameter
- Must use 48, 64, 72, or 80 pitch gears (plastic or metal OK)
- May use front axle of a minimum of .055” to a maximum diameter of .063”.
- Must use front wheel with minimum diameter of ½”
- May use commercially available soft rubber floppy tires
- All styles of front tires must be visible through front wheel openings
- Rear wheels must have a maximum width of .810"
- Rear axle width not to exceed 3.25" inclusive of all tire material
Allowed Axle, Wheel and Gear Modifications:
- May solder front axle where it passes through chassis uprights only
- May solder front wheel retainers to axle or chassis
- Cars must tech to .032” clearance under rear of car including gear
Disallowed Axle, Wheel and Gear Modifications:
- No axle tubes allowed front or rear
- No hollow axles front or rear allowed
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