TX 12 Speed Two manner launch Carbon, Zero Gap Release Technology, Two–way release expertise PRODUCT SPECIFICATIONS Moldel:SL–T1220 Speed:12S Side:Right Main Material:Aluminium Lever Material:Carbon Wire Length:2050mm Color:Black+Gold Weight:120g TX 12 Speed 52T Stabilize Damping Carbon, Damping Stabilization System, Cage fixed PRODUCT SPECIFICATIONS Moldel:RD–T1220 Speed:12S Main Material:Aluminium Cage Material:Carbon Cage Length:Long Max Gear Range:11T–52T Color:Black+Gold Weight:265g