when you do the chassis setup

When your instrument is worn out

4 mm EVA foam for effective impact absorption

Notebook for Rally

Revbensskydd FIA Alpinestars AK-1 Youth Body Pro Size:S/M when you do the chassisAlpinestars AK 1 Children's 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