Shimano LX M572 CranksetViews:
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|Miscellaneous||Features Hollowtech crank arm construction - made possibleby advanced Shimano forging technology, these forged hollow crankarms increasestrength and rigidity while reducing weight. Specially designed chainrings deliverquick and precise shifting with the super-narrow 9 speed chain. Four arm design reduces weight while offering increased lateral rigidity. Hollow forged aluminum Bottom bracket is not included Approximate weight 635 grams Compatible with Shimano Octalink V2 splined bottom brackets, use 121mm BB for 47.5mm chainline, or 126mm BB for 50mm chainline|