Superlight, machined aluminum, race mount for the ultimate Tour de France level performance. At 32 Grams the Race Mount is 33% lighter than the "standard" Garmin Mount. - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Compatibility: Garmin 820, 520, 510, 500, 25, 20 - Fits Handlebars: 31.8MM - NOT GoPro Compatible - Anodized Color: Black, Red, Blue, Red/Blue - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacturer defects. Damages due to abuse or crashing excluded. * Attention: ASSEMBLY BOLTS NOT MEANT TO BE REMOVED OR TAMPERED WITH AT ANY TIME. The torx head bolts are installed using a permanent thread-lock compound. Doing so will void all warranties. Please contact K-EDGE warranty manager [email protected] for questions or concerns. We highly suggest you follow the recommendations in the Sigma instructions that recommend use of the provided tether leash.