Spring Length: 66mm

but it's more powerful and more efficient to handle bigger motors and higher capacity battery packs for increased speeds and fun

These wheels are for the Team Associated B4

Motor: Black Marlin

CNC machined aluminum housing

Hitec RCD - HPP-21 PC Programmer, for Hitec Digital Servos Electric Accessories Spring Length: 66mmThe HPP 21 Digital Programmer and servo tester allows you to access all the programable features right from your PC. Features: PC Programmer for Hitec Digital Servos PC Based Digital Servo Programmer and Tester Programs all Hitec Digital Servo Parameters Tests all Brands of Servos Free Downloadable Software USB PC Connection