Bottom bracket with small ball bearings for lightweight Advanced seal construction for smoother rotation SHIMANO DURA-ACE Threaded Bottom Bracket 68/70 mm shell width 🚴🏻MODEL NO BB-R9100 SERIES DURA-ACE R9100 Series Average weight 65 HOLLOWTECH II bottom bracket_Threaded bottom bracket type ✔ Small ball bearing ✔ Threaded bottom bracket shell width (mm)_68 ✔ Threaded bottom bracket shell width (mm)_70 ✔ 🚴🏻MODEL NO SM-BB92-41B SERIES DURA-ACE R9100 Series Average weight 54g Press-Fit bottom bracket shell width (mm)_86.5 ✔ HOLLOWTECH II bottom bracket_Press-Fit type ✔ Small ball bearing ✔ 🔥Pre order 7-9 working days Deliver to Malaysia, SG, Brunei, Worldwide Accept Ewallet Boost TouchnGo Etc.. & Credit card How to Order 1.Product Option: 2.Quantity: 3.Color: 4.Name: 5.Address: 6.Contact number: Send to ☎FB http://m.me/icebikeheaven ☎ http://www.wasap.my/60174204398 Sales, Order, Customer service ☎ http://www.wasap.my/60195272398 After sales/ Warranty FOLLOW US ✔ https://www.ebay.com/str/icebikeheaven37 ✔ https://shopee.com.my/icebikeheaven?tab=shop ✔ http://www.lazada.com.my/ice-bike-heaven/ ✔ https://fb.me/icebikeheaven ✔ https://www.instagram.com/icebikeheaven37/ Buy from Us! 🚴🏻💯% POSITIVE FEEDBACK 🚴🏻💯% Warranty & After Sale Service 🚴🏻💯% PARCEL ARRIVAL GUARANTEED 🚴🏻💯% ❌hidden charges 🚴🏻 7️⃣ days size exchange 🆗 🚴🏻 7️⃣ days 100% 💲💲 Guarantee back ☄ Prompt response 🥇♞ SSM Registered company- Icebikeheaven 🥇 8 Years of experience