SM-CD800 chain guideThe chain guide ensures a stable drive even under the toughest conditions. It is optimized for the narrow 12-speed chain and can be easily adjusted by means of a screw.Shimano XTR M9100The new XTR continues 27 years of MTB innovation with even more speed, focus and control. You want to push the limits, and on the extremely demanding courses of today? The new XTR is packed to the brim with the technological edge you need to do just that. And it will inspire you to get everything out of you. Shimano has continued to work very hard since they introduced the very first MTB group 27 years ago. The XTR is the convincing proof of this. With its new design from scratch, it is by far the most advanced MTB group on the market. It is lighter, more comfortable, more robust and more versatile. At the same time, it converts with extreme efficiency the power of the driver in propulsion. - Purpose: MTB - Accessory type: chain tensioner - Details: - Recommended cassettes: 10-45, 10-51 - Recommended chain: CN-M9100 - Chain line: 52 mm - Type: chain tensioner - Material specifications: Resin - Application: with FC-M9120-1 / FC-M9100-1 - Mounting: direct mounting high - Adjustability: with screw - Suitable for: with FC-M9120-1 / FC-M9100-1