Camshaft kit alpha Racing, stage 4.1.1, for BMW S 1000 RR 2009-2014 and HP4, IN 11,5 mm, 256Â° / EX 9,6 mm, 252Â°, vibrofinished
Additional articlesThe alpha Racing camshaft kit "Stage 4.1.1" is the further development of the very successful "Stage 4.1" kit.
As a result of extensive tests and dyno runs, the total-open valve time (256Â° at 1 mm Lift) and valve lift remain unaffected, but by optimizing the intake camshaftâs ramp-profile, even more power could be generated over the entire speed range. These modifications allow better adjustment possibilities of the valve timing and as a positive side effect, by reducing the valve acceleration, a lower engine damage risk.
Attention: For fitting these cams it is required to use special valve springs (article code 1134A100D00).
weight: 1,75 kgDelivery- camshaft inlet
- camshaft outlet