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Lengths: 170mm, 175mm
Chainrings: 26x39, 28x42
Weight: 694 g
Bottom Bracket Sold Separately
Coming in at 694 grams, the Sram XX BB30 Crank delivers amazing performance and durability with no penalties in weight. The oversized chainrings are CNC machined 7075 aluminum blanks-2mm thicker than the competition. Unparalleled stiffness is delivered by an increased Bolt Circle Diameter (BCD) and a two-piece insert-molded carbon composite construction. The crank geometry provides a narrow 156mm Q factor, an efficient chainline, and beveled crank arms to maximize clearance.
Patented X-Glide chainring technology delivers accurate, lightning fast front shifts. The development concept for X-Glide was simple: create a geometry that allows each chainring to be divided into equal segments, much like a pie. Then, perfect the up-and downshift timing for one segment, and repeat that for each of them. With X-Glide, all four upshift locations are identical and can be picked up by any outer link. The result? Up and down shift locations have perfect timing, for an almost instant shift-even under load!
BB Not Included.