BGM primary wheels are developed for the enormous power and torque of today’s engines.
Made of a high-alloy steel (SCM415 / 15 CrMo 5) to the highest manufacturing standards.
Straightly geared for high-torque engines
High-quality material 15 CrMo 5
Precise production according to Honda standard
Continuous quality control
Useable with all transmissions manufactured since 1962 (or all with 30mm long primary springs)
Available with 62 or 63 teeth
Combinable with straight-toothed BGM Pro coupling pinion for COSA2: 23Z, 24Z, 25Z
Only mountable with BGM Pro primary repair kit (see accessories)
PLEASE NOTE: The straight-toothed BGM primary pinions and primary gears cannot be combined with Polini or Malossi parts. The module is chosen differently for the BGM parts for maximum stability.