For maximum pedaling efficiency, Shimano’s 105 Crankset boasts light, stiff hollow cold forged aluminum arms, plus an integrated oversize-steel axle. The chainrings are also made of cold-forged aluminum and are ramped and pinned for quick, precise shifting. The asymmetrical, four-armed big chainring provides incredible power transfer.
Bottom bracket cups sold separately
| Chainrings | 50/34, 52/36, 53/39 |
|---|---|
| Color | Black, Silver |
| Length | 165mm, 170mm, 172.5mm, 175mm |
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