Specifications Frame set Frame T700 Carbon invisible Fork T700 Carbon invisible Alloy Wheel Set Straight spoke Wheel set Jupiter alloy rim 38mm+Thru-Axle Central lock ratchet structure hub 36T+Piller 1423 spoke Tyre 700X28C CST black/brown wire Transmission system Shifter Shimano105 ST-R7120 front derailleur Shimano105 FD-R7100 rear derailleur Shimano105 RD-R7100 chainwheel & crank Shimano105 FC-R7100 52/36T or 50/34T freewheel Shimano105 CS-R7100 11/34T brake set Shimano105 BR-R7170 rotor Shimano105 RT70 Others Handle bar Carbon invisible Seat post Carbon Saddle SR road model (alloy wheel set）