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Shimano M311 6 7 8 Speed Front 3 Speed 42t 32t 22t Chain Wheel Chainring 170mm Crank Spline Square Hole Mountain Bike Crankset - Bicycle Crank & Chainwheel - AliExpress
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Shimano (Shimano) Crankset No Knock Set 48-38-28T ALTUS FC-M311 170mm Black EFCM 4524667132691 | eBay
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Amazon.com : Shimano Altus FC-M311 Bicycle Crankset - 170 x 42-32-22 Square Tapered : Bike Cranksets And Accessories : Sports & Outdoors
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