SPECIALIZED
Rockhopper Expert
Rockhopper Expert
SKU:91825-3805
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Excuse the brag, but we’ve really outdone ourselves here. Proving that true trail-taming capability doesn’t have to come at an intimidating price—the Rockhopper Expert is the culmination of 30 years of redefining the relationship between value and performance.
Start with a painstakingly engineered Premium A1 Aluminum frame, add in modern geometry that keeps one eye on efficiency and the other on confident capability, and you have the rock-solid foundation of our best Rockhopper yet.
Pair that with a parts list that just doesn’t quit (can we get a shoutout for RockShox’s Judy SoloAir fork and Shimano’s always-in-charge MT-200 hydraulic disc brakes?), and you have a tubeless-ready, SRAM NX 1x12-equipped Rockhopper that’s absolutely prepared to fly.
- A heart of gold, presented in our lightweight yet durable Premium A1 Aluminum, the Rockhopper’s butted aluminum frame features hydroformed top and downtubes to keep weight low and strength high, all while providing increased standover clearance, slick internal cable routing, and dropper-post compatibility.
- To ensure 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.
- Beautifully beastly, Shimano hydraulic disc brakes pack a mean bite but deliver their power with a refined, intuitive feel to make for a package that punches way above its pay grade.
- Keep things simple with a durable 1x SRAM drivetrain with plenty of range and a clutch-equipped rear derailleur that keeps your ride quiet—and your chain on.
- Pair dead-reliable hubs from Formula with our 25-millimeter internal diameter, hookless Stout rims for a strong, light, and durable wheelset hat trick.
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Technical Specifications
Seat Binder
- Alloy, quick release, 34.9
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
Fork
- RockShox Judy, Solo Air, Turnkey damper, 46mm offset, QR, 80/90/100mm travel (size-specific), alloy steerer
Front Brake
- Shimano BR-MT200, hydraulic disc, 180mm
Rear Brake
- Shimano BR-MT200, hydraulic disc, 180mm
Crankset
- Stylo Cranks
Rear Derailleur
- SRAM NX Eagle, 12-speed
Cassette
- SRAM PG-1210 Eagle, 11-50t
Bottom Bracket
- SRAM Powerspline
Chain
- SRAM SX Eagle, 12-speed
Shift Levers
- SRAM SX Eagle, trigger, 12-speed
Front Hub
- Formula DC-20, 6-Bolt, disc, 100x9mm spacing, quick-release
Rear Hub
- Formula DC-22, 6-Bolt freehub, disc, 135x9mm spacing, quick-release
Front Tire
- Ground Control 2BR 27.5/29X2.35
Rear Tire
- Ground Control 2BR 27.5/29X2.35
Inner Tubes
- Standard, Presta Valve
Rims
- Specialized Alloy, hookless, Tubeless ready, 25mm inner width
Spokes
- Stainless, 14g
Stem
- 3D-forged alloy, 31.8mm, 7-degree rise
Handlebars
- Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
SeatPost
- Alloy, 2-bolt clamp, 30.9mm
Saddle
- Bridge Sport, Steel rails, 155/143mm
Grips
- Specialized Trail Grips, lock-on
Weight
- 13.12 kg (28 lb, 14.8 oz)
Weight Size
- MD
Geometry
S | M | L | XL | XXL | |
Crank Length | 170 | 170 | 170 | 175 | 175 |
Handlebar Width | 720 | 740 | 740 | 740 | 740 |
Stem Length | 45 | 60 | 60 | 70 | 70 |
Saddle Width | 155 | 143 | 143 | 143 | 143 |
Seatpost Length | 350 | 400 | 400 | 400 | 400 |
Fork Rake/Offset | 46 | 46 | 46 | 46 | 46 |
Top-Tube Length (horizontal) | 586 | 608 | 630 | 654 | 679 |
Chain-Stay Length | 440 | 440 | 440 | 440 | 440 |
Wheelbase | 1105 | 1128 | 1152 | 1178 | 1203 |
Head-Tube Length | 95 | 95 | 105 | 120 | 135 |
Front-Center | 672 | 696 | 719 | 745 | 770 |
Head-Tube Angle | 68.5 | 68.5 | 68.5 | 68.5 | 68.5 |
B-B Drop | 62 | 62 | 62 | 62 | 62 |
Seat-Tube Angle | 73.5 | 73.5 | 73.5 | 73.5 | 73.5 |
Reach | 405 | 425 | 445 | 465 | 485 |
Stack | 607 | 616 | 626 | 640 | 654 |
Bike Stand-Over Height | 732 | 754 | 781 | 820 | 853 |
B-B Height | 310 | 310 | 310 | 310 | 310 |
Trail | 97 | 97 | 97 | 97 | 97 |
Fork Length (full) | 505 | 515 | 515 | 515 | 515 |
Seat-Tube Length | 360 | 400 | 450 | 500 | 560 |
Size Guide
