GOLDIX Ultralight Road Bike Crankset 170mm Crank Aluminum Alloy Hollow Bicycle Cranket Double chainring 50-34T/52-36T/53-39T Product Description: Brand: GOLDIX Material: 7075 aluminum alloy Model: JIANKUN-SL Crank length: 165/170/175mm Installation Type: Direct Installation Chain Ring: 50-34T 52-36T 53-39T Axis diameter: 24mm Axis material: 7075 aluminum alloy Axis length: 120mm Crank screw specification: m15 Surface treatment: Anode oxidation Pedal: m14 Support speed: 7s-12s Compatible: Shimano, SRAM, SENSAH, LTWOO, Microshift Bottom bracket specifications: BB68 M68-73 (standard configuration),The applicable frame bottom bracket width of 68mm-73mm. Thread specifications: BC1.37*24T, 34mm outer diameter, suitable for 24mm Axis Feature: 1. 7075 aluminum alloy forging. 2. Compatible with 7-12 speed. 3. Axial chromium solvent steel, high intensity, high temperature resistance, preservatives, light weight. 4. Laser laser surface treatment, will not fade. 5. 3D forging process, one by one. Product weight: Bicycle crank weight: 165mm ≈ 475g 170mm ≈ 485g 175mm ≈ 495g Bicycle chainring weight: 50-34T ≈ 180g 52-36T ≈ 186g 53-39T ≈ 203g Bottom bracket: ≈ 95g Note: Manually measured, there is a ±5g error.

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