Material: bracket, electric button: glassfiber reinforced plastic (GFRP) lever: aluminium (anodized) Weight supplement: pair | manufacturer's specs Reduced drag through a better aerodynamic design Eliminated the switch box of ST-6871 to make the design smaller and shorter Intuitive shifting control Keep a firm grip when shifting Single button on each side of the shifting lever only works with SYNCHRONIZED SHIFT Product Name: Shimano Ultegra Di2 ST-R8060 STI for Rim Brakes - 2x11-speed - Pair Manufacturer: Shimano Parts Item Code: SHI343874 activity: Cycling, Triathlon usage bikesport: Road Bike number of chainrings: 2, 3 shifting system: 11-speed shifting actuation: Electronic grip clamping diameter: 23,8mm brake actuation: mechanical shift lever type: STI/Ergopower/DoubleTap, Bar end shifters, Shift Lever Color: Black weight: 138g manufacturer item code: ISTR8060L + ISTR8060R 🔥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