RISK Parts Mountain Bike M15*19 Spline Bottom Bracket Crank BB Screw Colorful Aluminum Alloy Hollow Non-waterproof Chainring Fixation

Brand: RISK

Material: Aluminum Alloy

Colors: Red, Black

Specifications: M15*19 (2mm washer thickness)

Packaging: 4 pieces per set (2 screws + 2 washers)

Weight: 18.5g (with washers) (measured manually)