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The BC Racing RM Series features high-quality damping-adjustable monotube inverted dampers at the front, or front and rear depending on the vehicle. The RM offers the majority of the features of the BR Series with the additional benefit of the inverted damper unit — a design that reduces unsprung weight and moves vital damper fluid away from detrimental heat sources to prevent the overheating that causes damper fade under extreme track use.
Unsprung weight is reduced by moving the oil and gas reservoir away from the hub and attaching it to the shell. A lighter wheel and hub assembly responds more readily to road bumps, maintaining greater grip over imperfect surfaces. High unsprung weight can lead to wheel hop on bumpy ground, reducing both ride quality and ultimate handling.
Hard-driven cars generate significant heat within the braking system, conducted through the hub into the damper unit. By inverting the damper, the oil and gas reservoir is moved away from the hub, reducing conducted heat reaching the fluid. Keeping oil and gas temperatures lower maintains consistent damping rates — allowing you to corner faster for longer.
The large 42mm damper rod combined with the inverted design gives the RM units significantly greater strength and resistance to side loadings during hard cornering, resulting in more consistent steering geometry and more predictable, responsive handling.
The MA configuration is supplied with inverted dampers and aluminium camber adjustable pillowball top mounts on the front (where available), and upright dampers with aluminium rear top mounts with rubber centres or no rear top mounts depending on the application.
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Fitment Data
| Make | Seat |
| Model | Leon |
| Chassis | STRUT 54.5 5F 12-20 |
| Series | RM |
| Type | MA |
| Spring Rate | 7/6KG.MM |
| Front Top Mount | Inverted Shock - Camber Pillowball Top Mount |
| Rear Top Mount | Rubber Top Mount or No Top Mount |
| Part Number | YF-04-RM-MA |
Make: |
Seat |
Model: |
Leon |
Chassis: |
STRUT 54.5 5F 12-20 |
Series: |
RM |
Type: |
MA |
Spring Rate: |
7/6KG.MM |
Front Mount: |
Inverted Shock - Camber Pillowball Top Mount |
Rear Mount: |
Rubber Top Mount or No Top Mount |
Availability: Special order - contact us for latest ETA
Sourced from Darkside Developments UK. Shipped directly from the UK to New Zealand.
