BMW 2-Valve high-performance valve springs for 7mm shafts

The valve springs should be replaced from a camshaft opening angle of 330 ° or from a cam stroke of 8mm to ensure sufficient reserves for the increased valve acceleration and the block limit. The spring kit offers safe closing and following of the cam tracks up to over 8,000 rpm. A must for every tuning engine.
Suitable for all BMW 2-Vetiler cylinder heads with 7mm valve shafts. As standard with R45 and R65 or after a conversion of the R80/R100 models to our racing valves and guides with 7mm shaft diameter.

• double high-performance valve springs
• Top spring plate made of anodized aircraft aluminium
• Bottom spring plate made of nitrated chromoly steel
• shot-blasted and warm set for high breaking strength
• due to the damping property, no valve flutter
• suitable up to a valve stroke of 13mm
• Speed resistance up to over 8,000 rpm
• low weight and long service life
• For all BMW 2 valves 7mm valve shafts
  
• mandatory from 8.5mm cam lift or 330° opening angle