för nyhonad cylinder

the shaft that damps out most of the single cylinder's vibrations

Suitable for 428 chains

the other time is to calculate service-need and can be re-set with a press of a button

Revbensskydd FIA Alpinestars AK-1 Body Pro Size:XXS/XS för nyhonad cylinderAlpinestars AK 1 Adult size FIA approved rib protector from Alpinestars for karting. Homologated according to FIA standard 8870 2018. Ergonomically designed to get a tight fit against the body. Really easy to adjust with its Speed Lace system of BOA type where you simply turn the knob and the rib protector tightens all the way around. The rib protector is constructed from a mix of carbon fibre and plastic, with a soft padding. The rib protector is