Product Description LTWOO RX 2X11/R9 2x11/R7 2x10/R5 2x10/R3 2x8/R2 2x7 Speed Road Bike Shifters Lever Brake Road Bicycle Compatible for shimano Derailleur Material:R2/3/5/7/9:Alloy; RX:Carbon Fibre+Alloy Brand:LTWOO Speed:2x7v/2x8v/2x9v/2x10v/2x11v/2X12v Item Type:Road Bike Shifter Lever Brake Warranty: 2 years Warranty Type:International Warranty Weight: about 470g/pair RX:450g/pair Product Details L-TWOO R9 Shifter:2x11Speed22sCompatible with SHIMANO L-TWOO R7 Shifter:2x10Speed20sOnly Compatible with SHIMANO 4700 L-TWOO R5 Shifter:2x9Speed18sCompatible with SHIMANO L-TWOO R3 Shifter:2x8Speed16sCompatible with SHIMANO L-TWOO R2 Shifter:2x7Speed14sCompatible with SHIMANO Clamp Band:22.2+0.2/24+0.2mm Cable Length:L1850mm,R2050mm Compatible with Shimano no cockroach beard, walk inside, with half gear, separate callback gear, two-way control gearshift is smoother and the same principle as the cp system Invented THREE-IN-ONE Technology makes LTWOO Shifter-lever Changing gears easier and faster.Eliminate any confusion about two-lever and therr-lever systems. Longer Shifter lever to improve the reach from the hood.Lever lock mechanism eliminate shifting while braking operation The inner shifter cable has been installed for shipment