Roll centre adjusters

[Deuce Cam]

The rca spaces the control arm and tie rod down an equal amount since it's placed between the strut casing and steering knuckle. As a result the control arm and tie rod remain at the same angles in relation to each other as stock. Overall suspension geometry between the wheel and subframe is changed since the roll center is raised with the rca spacer (this is good).

You don't need to match rca thickness exactly to how much the strut casing is shortened but it's a good guideline. I would keep it close, within 1 cm since final ride height also is a factor (e.g. a 50mm rca will be ok on a 40mm shortened strut casing).

Side note: installing RCA's on non shortened strut casings can cause binding issues at the rack ends near full droop, but it depends on the shock length and the springs you're using. Not recommended.