TRAXXAS X-MAXX Chrome Steel Front/Rear Gear - 1pc - GPM STXM1200FR/G
1. High grade chrome steel material degree of hardness of 50. 2. 42 tooth spiral gear made of high grade chrome steel.3. When the quick start brake brakes, it does not damage. The car still run smoothly.
4. Only use with spiral gear (STXM1200F/G1 and STXM1200R/G1). Not compatible
with stock low grade steel gears.