- Machined clear acrylic housing, aluminum/carbon fiber motor mount
- Machined adjustable Delrin skid and 56T Delrin spur gear
- Heavy duty machined steel gear set (17T*2, 33T*1, 45T*1)
- Suitable for SCX10 I II III 90046 TRX4 Capra, etc 1/10 RC crawler
- Steel ball bearings and shaft