Product Description The Shimano XTR FC-M9100-1 12-speed chainring has an MTB-optimised tooth profile. Chain retention on mountain bikes can be further optimised thanks to the Shimano XTR 12-speed chainring SM-CRM95 for FC-M9100, M9120, and M9130. It has been equipped with Dynamic Chain Engagement+ technology, a special tooth profile that makes it safer to guide the chain on the chainring even in rough terrain, which also reduces wear. As a single chainring, the SM-CRM95 cannot be combined with other chainrings. It is made from plated aluminium and is attached to the crank via direct mounting. Specifications:Application: Cross Country, EnduroAttachment: Shimano Direct MountTeeth: 30 T, 32 T, 34 T, 36 T, 38 TGearing: 1x12-speedTechnical Information:Material: AluminiumCompatibility: XTR FC-M9100XTR FC-M9120XTR FC-M9130 (30, 32, 34 T only)XTR FC-M9125 (32, 34 T only)Features: stronger chain binding for better chain guidespecial tooth profile developed for MTBsmore even riding in rough terrainplatedTechnology: Dynamic Chain Engagement+ Dynamic Chain Engagement+ is Shimano's term for a special tooth profile of single chainrings intended for off-road use. This improves chain hold and counteracts chain drop on rough ground. It also minimises wear and increases pedalling efficiency. Manufacturer Numbers:30 tooth: I-SMCRM95A032 tooth: I-SMCRM95A234 tooth: I-SMCRM95A436 tooth: I-SMCRM95A638 tooth: I-SMCRM95A8Contents:1 x Shimano XTR SM-CRM95 chainring Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com