Bike Crank Set Aluminium Alloy 40T Positive and Negative Chainring 40 to 42T Guard Plate Bike Crank Chainring Set

Feature: 1. Aluminium Alloy: Our bike crankset is made of aluminum alloy, which is light in weight, stylish in appearance and strong in compatibility. 2. Accurate Finishing: The bike crankset adopts the multi stripe fixing method to ensure the ultimate chain retention, prolong the working life and reduce friction and noise. 3. Size: BCD is 104mm 4.09 inches, crank arm length is 170mm 6.69 inches, 40T positive and negative teeth chainring and 40‑42T guard plate. 4. Compatibility: The bike crankset fits most mountain bikes and road bikes on the market that has good performance. 5. Delivery: This mountian bike crankset includes a crank set, positive and negative teeth chainring, and guard plate with four nuts and four screws. Specification: Item Type: Bike Crank Set Material: Aluminum alloy Gross Weight: 791g 27.9oz Compatible: Single disc, dual disc, triple disc Specifications: BCD 104mm 4.1in, inside BCD 64mm 2.5in Crank: 170MM 6.7in. Package List: 2 x Crank4 x Screw4 x Nut1 x Positive and Negative Teeth Chainring1 x Guard Plate