Seven 7 iDP Limited Edition Project 21 Pro Helmet - M-L - Holographic PLP|Model Year 11 and 12-speed chains should

11 and 12-speed chains should be replaced when the

replacement clamp

Weight: 238g

and offer excellent vibration dampening for reduced hand fatigue and finger numbness on longer rides

and other front-mounted seats (with backrests and harnesses) put a lot of bulk between the rider and the bars

Seven 7 iDP Limited Edition Project 21 Pro Helmet - M-L - Holographic PLP|Model Year 11 and 12-speed chains shouldLooking for an open face helmet with a clean, modern look and advanced protection features? The Project. 21 meets all your requirements. Named after the number of vents, the Project. 21 combines massive airflow with the coverage demanded by increasingly technical bike parks, all mountain and enduro trails. This airflow gives a cooling effect to keep you comfortable whilst concentrating on the trail ahead. Like its full face sibling, the Project. 21