Ultra-strong Chromium Alloy Steel, precision machined to the highest industry standards. Features self cleaning "mud grooves" which help prevent build-up and "lightening holes" to help reduce weight.
- (1991-Current) All KTM 2-strokes 125cc and larger
- (1999-Current) All KTM 4-strokes 250-530cc
- (2009-2014) All Husaberg Models
- (2005-Current) Beta RR & RS 2-stroke & 4-stroke models
- (2014-Current) All Husqvarna 2-stroke & 4-stroke models 125-501cc
- (2021-Current) Gas Gas