Shimano Altus FC-M311 Crankset - 170mm 7/8-Speed 48/38/28t Riveted Square Taper JIS Spindle Interface BLK Model-PM-180-F 220 Lumen output at high steady:

Lumen output at high steady: 75

Model Z Lok Length 400mm Lock Type Key Color Multi-Color Package 4/Count Package Count 4 Count

Top bungee system for additional flexible storage

Updated seals and Shimano low viscosity mineral oil offers reliable bite point in all temperatures and trail conditions

Dual zone BOA fit system Toe Spike Compatibility No Cleat Bolt Pattern 2-Bolt Closure Dial Shoe Size (EU) 45 Gender/Age Men's Color Black Defined Color Black Activity Cycling Size 45

Shimano Altus FC-M311 Crankset - 170mm 7/8-Speed 48/38/28t Riveted Square Taper JIS Spindle Interface BLK Model-PM-180-F 220 Lumen output at high steady:Shimano Altus FC M311 cranksets feature aluminum crankarms with steel SG X chainrings for smooth and reliable shifting. Hyperdrive integrated SG X steel chainrings provide precise and reliable front shifting Proven 3 pc. design with sturdy aluminum crank arms (bottom bracket sold separately) 50mm Chainline 187. 9mm Q factor Rings 48 38 28 Number of Chainrings Triple Drivetrain Speeds 8 Chainring BCD Riveted Chainline Hub Compatibility 135 142 MTB Hubs