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Product features
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, 34x50t | 172.5mm, 34x50t | 175mm, 34x50t |
|---|---|---|---|
| Length | 170mm | 172.5mm | 175mm |
| Teeth | 34x50t | 34x50t | 34x50t |
| Speed | 12 HG+ | 12 HG+ | 12 HG+ |
| BCD | 110mm | 110mm | 110mm |
| Chainline | 44.5mm | 44.5mm | 44.5mm |
| 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 |
| Weight | 754g | 754g | 754g |