Better performance. Better value. Better Rockhopper. By tapping the fit and handling advantages of pairing each rider with their ideal wheel size and suspension that works its hardest for everyone thanks to our size-specific Rx Tune, we've baked in added performance to the Rockhopper without dialing up the...
2026 Rockhopper Base 27.5
Better performance. Better value. Better Rockhopper. By tapping the fit and handling advantages of pairing each rider with their ideal wheel size and suspension that works its hardest for everyone thanks to our size-specific Rx Tune, we've baked in added performance to the Rockhopper without dialing up the price.
The reliable and crisp Shimano drivetrain provides a robust 2x9 drivetrain that can handle everything you're throw down while confident braking from Shimano hydraulic disc brakes seals the deal of the century.
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A heart of gold, presented in our lightweight yet durable Premium A1 Aluminum, the Rockhopper’s butted aluminum frame features hydroformed top and downtubes in order to keep weight low and strength high, all while providing increased standover clearance, slick internal cable routing and dropper-post compatibility.
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With the goal of making sure that the Rockhopper offers both the best fit and best performance for every person, no matter their measure, we’ve paired each Rockhopper frame size with the optimal wheel size. The result is a Rockhopper to fit every rider and the assurance that every Rockhopper is rolling on the best-handling wheel for its frame size.
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Bringing our Rx Tune to Rockhopper for the very first time, the SR Suntour XCM with custom Multi-Circuit damping brings size-specific travel and spring rates to the show in a performance that’s sure to impress while also ensuring consistent geometry, handling and suspension performance, regardless of frame or wheel size.
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Pair dead-reliable hubs from Formula with our 25-millimeter internal diameter, rims for a wheelset hat-trick: strong, light and durable.

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TECHNICAL SPECIFICATIONS
DRIVETRAIN
Chainrings
#N/ABottom Bracket
Square-tapered, 73mm, internal bearings, 122.5mm spindle
Shift Levers
Shimano Altus, RapidFire Plus, 9-speed
Chain
KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
Rear Derailleur
Shimano Altus, 9-speed
Crankset
Stout 2x, forged alloy
Cassette
SunRace, 9-Speed, 11-36t
COCKPIT
Saddle
Bridge Sport, Steel rails, 155/143mm
SeatPost
Alloy, 2-bolt clamp, 30.9mm
Handlebars
Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
Grips
Specialized Trail Grips, lock-on
Stem
Stout 3D-forged alloy, 31.8mm, 6-degree rise
WHEELS
Spokes
Stainless, 14g
Rims
Specialized alloy, disc only, double-wall, 25mm inner width, 32h
Rear Hub
Alloy Sealed bearing, 6-Bolt, disc, 135x9mm spacing, quick-release
Front Hub
Alloy, Sealed bearing, 6-Bolt, disc, 100x9mm spacing, quick-release
Front Tire
Ground Control, 650B/29x2.35, T5
Rear Tire
Ground Control, 650B/29x2.35, T5
Inner Tubes
Standard, Schrader Valve
SUSPENSION
Rear Shock
#N/AFork
SR Suntour XCE 26/27.5/29, 28mm stanchions, coil spring, QR, 80/90/100mm travel (size-specific), 42mm offset
FRAMESET
Frame
Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible
Seat Binder
Alloy, quick release, 34.9
BRAKES
Front Brake
Tektro HD-M280, 2-piston caliper, hydrailic disc
Rear Brake
Tektro HD-M280, 2-piston caliper, hydrailic disc
ACCESSORIES
SWAT
#N/AWEIGHT
Weight
14.1 kg (31 lb, 1.4 oz)
Weight Size
MD
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
GEOMETRY
XS | S | M | ||||
---|---|---|---|---|---|---|
Crank Length | 165mm | 170mm | 170mm | |||
Handlebar Width | 700mm | 720mm | 740mm | |||
Stem Length | 40mm | 40mm | 60mm | |||
Saddle Width | 155mm | 155mm | 143mm | |||
Seatpost Length | 300mm | 350mm | 400mm | |||
Stack | 559mm | 573mm | 589mm | |||
Reach | 375mm | 395mm | 415mm | |||
Head-Tube Length | 95mm | 100mm | 105mm | |||
Head-Tube Angle | 68° | 68° | 68° | |||
B-B Height | 310mm | 310mm | 310mm | |||
B-B Drop | 43mm | 43mm | 43mm | |||
Trail | 97mm | 97mm | 97mm | |||
Fork Length (full) | 475mm | 485mm | 495mm | |||
Fork Rake/Offset | 42mm | 42mm | 42mm | |||
Front-Center | 630mm | 656mm | 682mm | |||
Chain-Stay Length | 440mm | 440mm | 440mm | |||
Wheelbase | 1067mm | 1092mm | 1118mm | |||
Top-Tube Length (horizontal) | 541mm | 565mm | 589mm | |||
Bike Stand-Over Height | 658mm | 695mm | 735mm | |||
Seat-Tube Length | 310mm | 350mm | 400mm | |||
Seat-Tube Angle | 73.5° | 73.5° | 73.5° |