Shimano Deore XT M8100 SM-CRM85 Chainring

The Shimano Deore XT M8100 SM-CRM85 chainring is designed for riders using a 1x12-speed drivetrain with Shimano Direct Mount crank arms. Suitable for mountain bikes and off-road use, it is available with 30, 32, 34 or 36 teeth.

• Fits directly to the crank arm without adapters, using the Direct Mount standard
• Compatible with FC-M8100, FC-M8120 and FC-M8130 Hollowtech II crank arms
• Works with a CN-M8100 HG+ 12-speed chain, for a 1x12 drivetrain
• Steel teeth, CFRP body and aluminium arm
• Choose the tooth count: 30T, 32T, 34T or 36T. The BB lockring is not included

Technical specifications

• Model: SM-CRM85 (Deore XT, 1x12)
• Available tooth counts: 30T, 32T, 34T, 36T
• Standard: Direct Mount, 12-speed
• Crank arm compatibility: FC-M8100 / FC-M8120 / FC-M8130 Hollowtech II (Direct Mount)
• Compatible chain: CN-M8100, HG+ 12-speed
• Material: Steel (teeth) / CFRP (body) / aluminium (arm)
• Chainline: 52 mm / 55 mm / 56.5 mm (standard, BOOST and SuperBOOST)
• Fitting tool: TL-FC41
• Package contents: 1x SM-CRM85 chainring, BB lockring not included

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.