JRZ 12 Series triple adjustable motorsport damper for the BMW M235i / M240i F22/F23 (2012-2019). Adds low speed compression bypass to independently adjustable compression and rebound, enabling precise tuning of pitch, roll, and vehicle balance. Features the JRZ 8060 motorsport piston and upgradeable to quad-adjustable with the 50 DA option. Built to order through Meisterschaft Motorsport Engineering, the official U.S. importer of JRZ Suspension. Every set includes expert setup consultation for your BMW.
JRZ 12 Series Coilovers BMW M235i / M240i F22/F23 — triple-adjustable motorsport damping built to order in the Netherlands by JRZ Suspension Engineering. Every unit is hand-assembled and dyno-validated before shipping. Browse all JRZ coilovers.
The JRZ 12 Series Coilovers deliver motorsport-grade triple-adjustable damping to the BMW M235i / M240i F22/F23 (2012–2019). Designed and hand-assembled in the Netherlands by JRZ Suspension Engineering, the 12 Series provides independent high-speed compression, low-speed compression, and rebound control — giving drivers precise authority over weight transfer, body control, and mechanical grip. Whether you are chasing lap times or building a refined street setup, the 12 Series adapts to your driving style and surface conditions with unmatched resolution. Explore the full M235i / M240i coilover lineup: 11 Series · RS PRO3 · RS PRO · RS ONE · RS TWO.
Every JRZ 12 Series damper is assembled by a single technician in Breda, Netherlands. Each unit is dyno-tested against its target force curve and serialized before it leaves the facility. This is not mass production — it is precision manufacturing backed by decades of motorsport R&D at the highest levels of professional racing.
This kit is engineered specifically for the BMW M235i (N55) and M240i (B58) on the F22 Coupé and F23 Convertible platform, model years 2012 through 2019. The 12 Series bolts into the factory mounting points with no permanent chassis modifications, and ride height is set through threaded spring perches — preserving full suspension travel at any stance.
| SPECIFICATION | DETAIL |
|---|---|
| VEHICLE | BMW M235i / M240i F22/F23 (2012–2019) |
| DAMPER TYPE | Triple-adjustable (high-speed compression, low-speed compression, rebound) |
| CONSTRUCTION | Monotube, piggyback reservoir |
| SPRING TYPE | Coilover (divorced spring option available) |
| RIDE HEIGHT | Adjustable via threaded spring perches |
| REBOUND ADJUSTMENT | External knob — 4-click sectors |
| COMPRESSION ADJUSTMENT | Dual external — high-speed and low-speed independent |
| QUICK DISCONNECTS | Non-inverted / standard |
| BODY MATERIAL | Hard-anodized 6000-series aluminum |
| SHAFT | Chrome-plated, induction-hardened steel |
| SEALS | Low-friction fluoropolymer composite |
| DUST BOOT | Included — protective bellows |
| SERVICE | Fully revalveable and rebuildable |
| WARRANTY | Contact Meisterschaft Motorsport for details |
Not sure whether the 12 Series is the right match for your M235i / M240i build? Our team can walk you through damper selection, spring rates, and setup recommendations based on your driving goals.
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