ZTTO MTB Crank Arm Bolt Crank Screw Mountain Road Bike Cap M20 M19 M18 Crankset Screw For Bicycle BB Axis Screws

ZTTO Crank Arm Bolt Material: Aluminum Size: M18/M19/M20 Length of thread: about 11mm Weight: 8g Made of high quality aluminum alloy, durable and long-lasting color. Ultralight, only 8.3g of the weight. The crank arm bolt is solid and durable with a long service time. It will not fade with a beautiful finish. Fit for most of bicycles, easy to install. Note *Color: Due to the light or display difference, the color of the product you received might be a little difference from the pictures. That is not a quality issue. *Size & Weight: Due to the measure error or insrumental error, the weight and size of the product might have a minor difference to the discription. That is not a quality issue too. *Service: We are professional bike mechanics and good at English, so if you have any problem when you set up your products, please feel free to contact us. If you need a large amout of products, please contact us too. We will give you a discount. Don't jump to a bad review, before you want to do that, just contact us and i think we will find a way to solve the problem.