Shock Absorber Type 643 QRR
IDM-developed shock absorber with finned reservoir.
Newly engineered for IDM Superbike use, this shock features an integrated finned expansion reservoir. The cooling fins dissipate heat efficiently, keeping damper oil temperatures stable for a consistent damping characteristic. All of our race experience flows into the rider-specific tuning — you receive a genuine racing-replica unit, set up exactly as we run it in IDM.
Features:
- 7075 aircraft-grade aluminum cylinder body
- 15 mm piston rod
- Provisions for mounting a stroke (spring travel) sensor
- X-PA spring-preload adjuster: stepless 15 mm mechanical range
- Ride-height adjustment: shock length ± 5 mm
- Two additional springs included (one softer, one harder)
- Adjustments: high-/low-speed compression and rebound — 22 clicks each
- Exclusive finish: black/titanium-anodized milled aluminum, blue chrome-silicon spring, blue-anodized compression adjusters
Only racing
spring preload, compression and rebound damping adjustable. Incl. X-PA and ride height adjustment
FITMENT
2021 - 2025 BMW M 1000 RR | K66
SKU
643-1300-10-XPA
Please answer the questions below to ensure your suspension will be set up correctly for your carried weights.
Let customers speak for us
Perfect fit, perfect replacement for the factory Showa. 1993 BMW R100R rides like new again!
Very high-quality shocks. Pricing is reasonable for what you get. Super easy install. Highly recommend.
I tried two after market rear shocks on my‘23 Road Glide and wasn’t pleased at all with either set. My wife gave me an evil eye when I-told her I had ordered another set (3rd set) of shocks. About an hour into our first ride on the Wilbers she acknowledged the Wilbers were a huge improvement.
The shocks are very easy to install and make the ride as smooth as can be.
Fantastic upgrade that really improves the ride.
Can’t rave enough about the set-up! Two weeks after installation, I went on a 9 day ride from Staten Island NY to Key West FL and back, with various stops in between. The bike handled so smoothly, it was the best long ride i ever had. Never bottomed out either! I’ve been recommending the Wilber’s Nivomat suspension & EPM Performance to everyone I meet. Thank you.
What a great product. So much better than stock. Easy set up and go. No more 3 different adjustments.
