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Product features
Shimano GRX
Shimano GRX was designed from the ground up for gravel adventure. With its gravel-specific ergonomics, optimized gearing options, rugged reliability, and quiet, stable drivetrain, GRX sets itself apart from the rest of the component world.
Hollowtech II
Balancing stiffness and power transfer against overall component weight is a chief concern for any crankarm design. Shimano's Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its 24mm diameter, outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer.
| Size | 170mm, 40t | 172.5mm, 40t | 175mm, 40t |
|---|---|---|---|
| Length | 170mm | 172.5mm | 175mm |
| Teeth | 40t | 40t | 40t |
| Speed | 11 | 11 | 11 |
| BCD | 110mm | 110mm | 110mm |
| Chainline | 49.7mm | 49.7mm | 49.7mm |
| Offset | Standard | Standard | Standard |
| Crank type | Shimano Hollowtech II | Shimano Hollowtech II | Shimano Hollowtech II |
| Threading | 9/16"(15mm) | 9/16"(15mm) | 9/16"(15mm) |
| Material | Aluminum | Aluminum | Aluminum |