Carries the genes of Shimano’s high-end road bike components 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.

Available in two 52-36Z and 50-34Z chainring configurations
Crank Arm Lengths: 165, 170, 172,5 and 175 MM

Spindle interface: Hollowtech II
Intended use: Road
Series: Tiagra
Compatible chain: LinkGlide, HG 11-Gang
Stock: An Stock
Model year: 2026
Q-factor: 150 mm
Bolt circle diameter: 110 mm

Available variants (configuration | colour | weight | article | manufacturer part | EAN):
Gearing: 50x34 / Chainline: 43.5mm / Crank length: 165 mm | Standard | | 63.93881 | EFCR4000AX04 | 4550170953102
Gearing: 50x34 / Chainline: 43.5mm / Crank length: 170 mm | Standard | | 63.93883 | EFCR4000CX04 | 4550170953140
Gearing: 50x34 / Chainline: 43.5mm / Crank length: 172.5 mm | Standard | | 63.93885 | EFCR4000DX04 | 4550170953010
Gearing: 50x34 / Chainline: 43.5mm / Crank length: 175 mm | Standard | | 63.93887 | EFCR4000EX04 | 4550170953225
Gearing: 50x36 / Chainline: 43.5mm / Crank length: 170 mm | Standard | | 63.93884 | EFCR4000CX26 | 4550170953164
Gearing: 52x36 / Chainline: 43.5mm / Crank length: 165 mm | Standard | | 63.93882 | EFCR4000AX26 | 4550170953072
Gearing: 52x36 / Chainline: 43.5mm / Crank length: 172.5 mm | Standard | | 63.93886 | EFCR4000DX26 | 4550170953263
Gearing: 52x36 / Chainline: 43.5mm / Crank length: 175 mm | Standard | | 63.93888 | EFCR4000EX26 | 4550170953034

Available technical data: