The Rockhopper is a time-tested trail riding hardtail built for cruising fire roads & slicing through singletrack. Equipped with Tektro hydraulic disc brakes & a Rock Shox XC28 suspension fork featuring lockout the Rockhopper Comp combines performance with value in a package every rider will appreciate.> Fully butted A1 Premium Aluminium 29er frame with ORE downtube for a lighter more compliant & durable bike> Custom forged alloy 10-speed XC crankset offers lightweight & durable performance> SRAM X5 10-speed rear derailleur makes shifts super crisp & efficient> Rock Shox XC28 fork features Turn Key hydraulic damping lockout alloy steerer tube & externally adjustable rebound for plush & lightweight trail performance> Tektro Draco hydraulic disc brakes/levers with Light Wave rotors create increased control & superior stopping power for more confident braking FRAME Specialized A1 Premium Aluminium Trail 29er Geometry fully butted w/ tapered headtube forged dropouts replaceable alloy derailleur hanger FORK Rock Shox XC28 29 Turn Key damping w/ lockout coil spring 1-1/8" alloy steerer 28mm stanchion preload & rebound adj. 100mm travel (80mm size Small)HEADSET 1-1/8" w/ lower bearing reducer Campy style integrated full cartridge bearings STEM Specialized 3D forged alloy 4-bolt clamp 6-degree rise 31.8mm HANDLEBARS Specialized flat bar double-butted 6061 alloy 700mm wide 10-degree backsweep 4-degree upsweep 31.8mm GRIPS Specialized Body Geometry XCT Kraton w/ gel closed end 132mm lock-on FRONT BRAKE Tektro Draco 2 hydraulic disc dual piston 180mm rotor REAR BRAKE Tektro Draco 2 hydraulic disc dual piston 160mm rotor BRAKE LEVERS Tektro Draco 2 hydraulic lever FRONT DERAILLEUR SRAM X5 10-speed 2X10 34.9mm clamp REAR DERAILLEUR SRAM X5 10-speed long cage SHIFT LEVERS SRAM X5 10-speed trigger CASSETTE Sunrace 10-speed 11-36CHAIN KMC X10CRANKSET Custom Samox 2pc. forged arm 2x 10 170mm/175mm CHAINRINGS 36/22 aluminium BOTTOM BRACKET GXP BB for 2pc. 73mm shell PEDALS Composite platform w/ reflectors 9/16"RIMS RH Disc 29" alloy double-wall 26mm pin joint 32h FRONT HUB Specialized disc alloy Hi Lo flange RCC ball bearing system steel axle QR 32h REAR HUB Specialized disc alloy Hi Lo flange RCC ball bearing system steel axle steel cassette body QR 32h SPOKES Stainless 14g (2.0mm)FRONT TYRE Specialized Ground Control Sport 29x 2.1" wire bead 60TPIREAR TYRE Specialized Ground Control Sport 29x 2.1" wire bead 60TPIINNER TUBES Standard presta valve SADDLE Specialized Body Geometry Rockhopper steel rails 143mm SEATPOST Alloy 2-bolt micro-adjust 12.5mm offset 30.9mm SEAT BINDER Forged alloy 34.9mm QR nylon washer