Frame 6061 Alloy Forks Steel Headset 1 1/8 Aheadset Handlebars 620mm wide, 30mm rise x 2 Stem Adjustable A-Headset Stem, x2 Shifters 27 Speed Shimano SL-M390 Rapidfire Front Mech Shimano FD-M370 3spd Rear Mech Shimano RD-M430 Alivio 9spd Chainset Truvativ Firex LH; 2 x 38T Chainrings, 175mm Cranks. RH; 1 x 48-36-26T Chainrings + 1 x 175mm Crank Bottom Bracket 2 x GXP Sealed Cartridge BB, with Concentric shell in front Chain KMC HG-53 x 2 Cassette Shimano CS-HG50 9spd Cassette 11-32T Front Brake Avid BB-5 Mechanical Disc Brakes Rear Brake Avid BB-5 Mechanical Disc Brakes Rims ALEX DH19 Double Wall Alloy, with CNC braking surface Front Hub 48H Quick Release, alloy Rear Hub 48H Quick Release, alloy Spokes 14G, Stainless Steel Tyres Kenda 26 x 1.95 Front Kenda 26 x 1.95 Rear Seatpost Front; 28.6mm x 450mm. Rear; 30.4mm x 450mm