Shimano SLX M665 Double Crank/Bottom Brackets Sets Shimano SLX M665 170mm Crankset BG3622t with Bottom Brackets

The SLX 665 Hollowtech II Crankset features a composite middle ring for double the service life, improved shifting performance, and a reinforced construction for a rugged riding style. A 2tone colored crank arm, high rigidity crank arm comes equipped with an impact absorbing honeycomb design bashguard. Black color rings in 64104mm bolt circle diameter Middle chainring has steel teeth mounted to a composite carrier, steel inner ring Twochainring model that uses a bashguard i