TechniqueNew Sram chain rings and Truvativ chain guide
SRAM continues to expand its options 2x10; in the 2012 catalogue will be available 38/24 and 36/22 combinations, for X0, X9, X7 and X5, with a dedicated front derailleur.
Also new is the chain guide Truvativi X-Guide, has a weight of 155g.
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