- A set of super speed gears (3.5:1) with attractive speed growth.
- Can be used for Super XX chassis and Super II chassis with small diameter tires.
- In addition, two types of shafts, straight and flanged.
Can be used with a wide range of chassis.
- In addition to spur gears, counter gears, and two types of shafts, 620 round hole ball bearings are also included.
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