If you are currently using the soft big block battery , this adaptor allows fitment into your R1 the weight of this adaptor is equal to the Big Block when using the HC 350's

 

Rear upper arm kit that fixes the rear geometry and keeps the suspension from binding. kit includes: 2 arms 1 arm mounting plate necessary hardware

Rear upper arms kit includes: 2 arms

If you are using the ZS axles and ZS knuckles these plates are designed to compensate for the slop elimination

Delrin upper arm outside balls

Front Spring Set (3pair) RED=SOFT BLUE=MED SILVER=HARD

R.1 Triball rear pod with carbon plate 5 aluminum parts 1 carbon plate  Does not include shock mount or balls and shims

R.1 Shock Mount  (Rearward pivot point)

Ride height shims for adjusting rear axle