Whether youve been riding trails for decades or youre just starting to cut your teeth the Rockhopper Comp 29 will take your rides to the next level. We built it with just the right balance between performance & durability & not to toot our own horn but we nailed it. The Comp 29 features corrosion-resistant hardware for long wear our Trail 29 Geometry that provides confident handling & efficiency & an alloy frame construction thats equal parts light & compliant. The frame is constructed from lightweight A1 SL aluminum in order to provide a compliant durable platform to support our acclaimed Trail 29 Geometry. Combined you get a bike thats more than efficient on climbs & eager to get down to business on descents.SR Suntour XCR-Air fork features 80/100mm (size-specific) of suspension travel that swings well above its weight class. Shimano Deore rear derailleur provides crisp reliable shifting that you can count on when the going gets rough. With it youll be able to precisely move through the wide 11-36t gear range to make cruising the flats almost as easy climbing those hills. Technical Specifications FRAME Specialized A1 SL Aluminum Trail 29 geometry fully-butted tube sets ORE down tube tapered head tube forged dropouts disc mount replaceable derailleur hanger FORK SR Suntour XCR-Air rebound adjustment w/remote lockout 80/100mm of travel (size specific)FRONT HUB Shimano HB-RM35 Center Lock disc 9x 100mm 28h REAR HUB Shimano FH-RM35 Center Lock disc 10x 135mm 32h SPOKES Stainless 14g black RIMS Stout XC 29 alloy disc double-wall pinned joint 21mm inner width 28/32h INNER TUBES 29x 1.75/2.4" 60mm Presta valve FRONT TYRE Ground Control Sport 29x 2.1" 60TPI wire bead Flak Jacket protection REAR TYRE Ground Control Sport 29x 2.1" 60TPI wire bead Flak Jacket protection CRANKSET Stout forged alloy construction 2x 9 anti-corrosion hardware CHAINRINGS 36/22TBOTTOM BRACKET Square taper 73mm internal bearings SHIFT LEVERS Shimano Acera Rapid Fire Plus 9-speed FRONT DERAILLEUR SRAM X5 high-clamp 34.9mm 2x 10REAR DERAILLEUR Shimano Deore Shadow design SGS cage 9-speed CASSETTE Sunrace 9-speed 11-36t CHAIN KMC X10 10-speed w/reusable Missing Link FRONT BRAKE Shimano BR-M315 hydraulic disc resin pads REAR BRAKE Shimano BR-M315 hydraulic disc resin pads 160mm rotor HANDLEBARS Stout alloy 8-degree backsweep 6-degree upsweep 10mm rise 720mm width 31.8mm GRIPS Specialized MTB lock-on STEM Stout 3D-forged alloy 31.8mm clamp 6-degree rise SADDLE Body Geometry Henge Sport steel rails 143mm SEATPOST Alloy 12mm offset 2-bolt clamp 30.9mm SEAT BINDER Alloy QR clamp 31.8mm PEDALS Specialized Dirt