Special MTB- Tooth Profile Improves Chain Guide and Binding Please open the full product details to review the specifications and available options. The component list is presented below, together with information about this product. Check the selected configuration and contact us to confirm availability and delivery before ordering. When making an enquiry, please indicate the product name and your preferred options so that we can check the requested configuration and provide the relevant details.

Hollow designed crank ensures maximum power transmission while reducing weight

Spindle interface: Hollowtech II
Intended use: MTB, Downhill, Enduro
Series: Deore XT
Compatible chain: HG 12-Gang
Stock: Estimated goods receipt approx. 15.12.2026
Model year: 2020
O.L.D.: 142 / 148 mm
Q-factor: 172 mm
Bottom bracket: Without Bottom bracket (BB-MT801)
Bolt circle diameter: Direct

Available variants (configuration | colour | weight | article | manufacturer part | EAN):
Chainline: 52 mm / Included: Without Kettenblatt / Crank length: 175 mm | Black | | 63.75157 | IFCM81001EXXT | 4550170447977
Chainline: 52 mm / Included: Without Kettenblatt / Crank length: 165 mm | Black | | 63.75159 | IFCM81001AXXT | 4550170780593
Chainline: 52 mm / Included: Without Kettenblatt / Crank length: 170 mm | Black | | 63.75158 | IFCM81001CXXT | 4550170447960
Chainline: 52 mm / Included: Without Kettenblatt / Crank length: 180 mm | Black | | 63.75156 | IFCM81001GXXT | 4550170447984

Available technical data: