BLACKBIRD +20 mm Zadelschuim Easy and intuitive installation (no

Easy and intuitive installation (no need to dismantle the cover)

Velocity Flow Ventilation™

Ergonomically pre-shaped and fully vented knee is generously contoured to accommodate all types of knee braces and guards while a massive air-intake system cools and protects

Inner ring :46X50X12

BLACKBIRD +20 mm Zadelschuim Easy and intuitive installation (noBlackbird Racing seat foams are produced in high density polyurethane, which does not absorb water and keeps its excellent qualities for a long time. They are made following the best world championship racing teams recommandations. They are easily interchargeable with the original ones. 2,0 centimeter higher than stock.