Simpson Racing DiamondBack Motorcycle/Race Helmet Matte Black- 7 5/8 - DOT/SNELL 2016+ yamaha yxz1000r Unlike the stock Duramax exhaust

Unlike the stock Duramax exhaust which directs a prolonged jet-like blast of super-heated exhaust gas directly at anything being towed

Hydraulics required but not included

Unlike solenoid foolers or plugs that are always active

Pyrometer to track EGTs

Simpson Racing DiamondBack Motorcycle/Race Helmet Matte Black- 7 5/8 - DOT/SNELL 2016+ yamaha yxz1000r Unlike the stock Duramax exhaustA major revision to our Simpson Diamondback for 2021 combines a new Italian composite shell with a shorter chinbar and changes to the visor mounting for improved fit and function while also providing enhanced impact protection. Helmet ships with one clear face shield installed, additional face shields may be purchased separately. Features: Recessed eye port offers a 100% shield seal Head restraint ready Italian composite shell Your helmet ships with