<ul><li>Central bracket with square pin for 68 mm bike bottom. Quick and easy installation without adjustment.</li><li>The integrated system can protect the frame, higher power,it is better than the normal middle movement of the structure.</li><li>Fine workmanship,small dimensional error, 2 bearing precision wire design, which allows it to connect better to the bike arm</li><li>SEAL BEARING:Sealed cartridge bearing assembly - maintenance-free sealed cartridge protects against dirt, mud and water.</li><li>[Good Service]If you have any problems with this product. you can contact us at any time.</li></ul><br><br>

Mimoke Square Tapered Bottom Bracket BSA Innenlager Bearing 68mm x 113mm 116mm 118mm 122.5mm 124mm 126mm (122.5)