Arrma ARA330573 Shock Springs 130mm 2.21N/mm (12.62lb/in) Kraton 8S Outcast 8S Javelin Parts it restores proper operation of

it restores proper operation of the reverse system so you can back out of trouble and keep the fun going

Has a servo plug and plugs into the AR7200BX helicopter receiver providing RPM data for the governor

engineered to fit the Super Rock Rey

New light weight 45T spur gear for use with smaller diff for the center(Same as front and rear diff)

Arrma ARA330573 Shock Springs 130mm 2.21N/mm (12.62lb/in) Kraton 8S Outcast 8S Javelin Parts it restores proper operation ofArrma ARA330573 Shock Springs 130mm 2. 21N mm (12. 62lb in) (2) Kraton 4X4 8S OVERVIEW: These high quality Shock Springs will allow you to tune your vehicle handling characteristics in seconds. FEATURES: Precision manufactured from spring steel for consistent performance and long lasting durability Specification: Length: 130mm Outer Diameter: 32mm Spring Rate: 2. 21N mm (12. 62lb in) INCLUDES: 2 x Shock Spring: 130mm 2. 21N mm (12. 62lb in)