HollowTech II integrated bottom bracket seal design has minimal bearing interface Required for installation of FC6800/FC5800/R8000 chainsets Also suitable for use with 5700 and 6700 series chainsets. The Shimano Ultegra 8000 SM-BBR60 Bottom Bracket is available in one size and for English (68mm) threading. - Around 15 grams lighter than previous version - Reduced rotational friction by roughly 50% - Steel bearings with Shimano’s advanced sealing technologies - Compatible with English threads Pressfit+ rm30 Shimano SM-BB72-41B is a pressfit bottom bracket recommended for 105 11-speed and Metrea City cranks. Thanks to its small ball bearings, weight is saved. This bottom bracket also has an axle diameter of 24 mm (Hollowtech II), which has proven to be optimal in terms of stiffness and rotational efficiency. Specifications: Application: Road, City Type: Pressfit BB86 Shell Diameter: 41 mm Shell Width: 86.5 mm Axle Diameter: 24 mm (Hollowtech II) ♥ NEW ARRIVAL & READY STOCK ♥ Deliver to Malaysia, SG, Brunei, Worldwide (DHL) Accept RM / SGD via Paypal, Credit card, ewallet How to Order 1.Product Option: 2.Quantity: 3.Name: 4..Address: 5.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.icebikeheaven.com/ ✔ https://www.ebay.com/str/icebikeheaven37 ✔ https://shopee.com.my/icebikeheaven?tab=shop ✔ http://www.lazada.com.my/ice-bike-heaven/ ✔ https://www.facebook.com/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 🥇♞ Registered SSM company- Icebikeheaven 🥇 6 Years of experience 🥇 Local small business