Or as low as 
Shimano Deore M617 Double Chainset – 10 Speed
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- The 2-piece design chainset is designed for an external bottom bracket system that is lightweight and incredibly strong
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- Lightweight and rigid steel bottom bracket axle
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- SG-X chainring with patented spike pins give smooth and fast gear shifts under load
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- Material: Aluminium crank arm and large chainring, Steel inner chainring
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- Axle profile: Hollowtech II
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- BCD: 104/64mm
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- Type of chain: HG-X 10-speed
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- Chainline: 50mm
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- 10-speed Dyna-Sys compatible
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- Weight: 800g
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- Bottom bracket NOT supplied with chainset
