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Shimano Deore FC-M615 10 Speed Double Chainset - 40/28T

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£57.99 Please note this product has selling restrictions to your country. was
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Questions & Answers (1) Q & A
- Great value Deore 2-piece design chainset for 10-speed Dyna-Sys MTB HG-X transmissions
- The 2-piece chainset features an external bottom bracket system which is a lightweight rigid design that is incredibly strong and durable
- Lightweight and rigid steel bottom bracket axle
- SG-X chainring with patented spike pins give smooth and fast gear shift under load
- Lightweight aluminium outer with steel inner chainrings
- We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit
- 104/64 mm bolt circle diameter
- 10 speed Dyna-Sys compatible
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Questions & Answers (1)
Can This Be A Straight Swap For My Tiagra 4650 Compact Double Chainset?
30 Jul 2016
I need lower gears for off road and laden touring. Can't put a larger cassette on without changing rear mech too. Bike is standard Genesis Cdf 2015. Current spec : 2x10 Shimano with 50 / 34 Tiagra 4650 chainset, external 68mm bottom bracket, assymmetric HG chain ( would need to shorten ).
SJS Customer Service:

Although this chainset would fit, we don't know how well it would shift with your current front derailleur. Your front derailleur would have been designed around a 50/34 combo or larger rings so you may not be able to adjust it enough to work well with a 40/28 combo. This is a combination we have unfortunately never tested so we're not able to offer an accurate answer I'm afraid.