These were mounted on a street bike when I bought it and are in like new condition. From Cycra’s website: – STRONGEST independent mount hand guard system available – Unrivaled strength against trail debris – Vigorously tested for durability and quality assurance – Great alternative to wrap around systems for woods or MX – Patented folding shield for those unexpected quick departures – Trick billet aluminum mounts & reinforced backbone on shield – In-molded rubber edge provides increased protection – Under or over bars mounting for easy installation and clean hand control area – Complete Racer Pack Includes: Shields, Mounts & Hardware