Bullet Points: 1Applicable Objects: The gear lever is suitable for front (left) 3 rear (right) 7 bicycles, providing riders with different flexible driving experiences. 2Easy to Install: The gear lever set is easy to install on the handlebar. On the left is a turn without a number, and on the right is a digital position, that is, shifting. 3Inner Diameter: The inner diameter of the handle mounting hole: about 22mm/0.87 in. Suitable for mountain bikes/city bikes/recreational vehicles/road bikes/folding bikes. 4Internal Gear Cables: The shift lever is equipped with 2 internal gear cables, which are usually made of carbon steel alloy. The standard configuration is that the product comes with a high-speed steel wire core and a radio tube. 5 Packing List: Freely choose what you need, 1 front derailleur/1 rear derailleur/1 right finger derailleur/1 left finger derailleur/1 set of 4-piece transmission set. Specification: Name:BicycleTransmissionSet Material:aluminumalloy+ABS+carbonsteel Color:black Style:frontderailleur,rearderailleur,rightfingerderailleur,leftfingerderailleur,4-piecetransmissionset Leftfingerderailleurweight:about174g Rightfingerderailleurweight:about168g Rearderailleurweight:about227g Frontderailleurweight:about136g PackingList: 1Setof4-pieceTransmission: 1*FrontDerailleur 1*RearDerailleur 1*RightDerailleur 1*LeftDerailleur Note: Duetothelightingeffectsandshootingangles,thereiscolordifferenceintheproduct,pleaseunderstand. Duetomanualmeasurement,thereisatoleranceintheproductsize.