TRAXXAS X-MAXX Chrome metal Front/Rear Gear - 1pc - GPM STXM1200FR/G
1. Good chrome steel product quantity of hardness of 50. 2. 42 enamel spiral gear made from good chrome steel.3. Following quick begin brake stopping system system, it doesn't damage. The automobile nevertheless run efficiently. 4. merely use with spiral gear (STXM1200F/G1 and STXM1200R/G1). Not suitable with stock low grade metal gears.