The Run-Flat feature allows you to continue to the finish in the unlikely event of a damage.
Crank Set The Deore 12-speed crank sets are single-ring only and use Shimano’s direct mount chain rings, available in 30 and 32-tooth options. Chainrings and spider are again a split affair with the spider being aluminum and the ring being steel to drop the cost. Being the same spider-less fitment means you can also run chainrings from the SLX, XT or XTR range. The cranks are a two-piece construction - Shimano definitely know a thing or two about creating well engineered aluminium crank sets, and are available in 170 and 175mm lengths. There are also three different chain line options available, 52mm, 55mm and 56.5mm with accompanying 172mm, 178mm and 181mm Q-factors to provide options for non-Boost (142mm), Boost (148mm) and Super Boost (157mm) rear hub spacing. Weight for the 170mm cranks with a 32 tooth ring is 778 grams.
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