All Mountain Style Crank Guards are specifically designed to protect road and mountain crank arms from scratches and rubbing. Features: A simple solution to eliminate shoe rub and other crank arm catastrophes Fits all carbon and aluminum cranks Made from the same honeycomb PVC as frame protectors Includes 4 pieces to extend protection up crank arm. Parts are 140mm/5.5" long and 54mm/2" wide Specifications: Color: Black Weight: 8g