$1.79at N+1 BikesBuyN+1 BikesShimano Hollowtech II Left Road Crank Arm Safety Plate$1.79N+1 Bikes$1.79BuySaveShareN+1 Bikes profileThe creators who use it, or GearCred, may earn a commission when you buy through these links, at no extra cost to you.From N+1 BikesShimano Crank Arm Fixing Bolts