ZTTO Bottom Brackets BB109 Ceramic Bearing For BSA68 73 BSA MTB Road Bike 24mm 22mm Crank Bicycle Center m8000 BB BBR60

ZTTO CERAMIC BB109 EXTERNAL BEARING BOTTOM BRACKETS BSA68/73 Bottom Brackets Color: Black,Red Weight :About 101g Crankset:For Shlmano φ24/24mm and srann GXP φ24/22mm Bicycle Frame:For 68mm/73mm φ34.798mm 1.37 in x 24 TPI Frame Shell Tool:44mm, 16-notch This bottom brackets bearing ball use ceramic material, they have many advantages, firstly ceramic ball lighter weight than steel ball, and more smooth,and then ceramic have corrosion resistance so it have longer use life. ATTENTION Please choose the bottom bracket you need, and use BB tool or other tool to screw into frame for safety. 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 ti a bad review, before you want to do that, just contact us and i think we will find a way to solve the problem.