Specialized Rockhopper Expert 27.5 Features
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 SRAM’s always-in-charge Level hydraulic disc brakes?) and you have a tubeless-ready, SRAM Eagle 1x12-equipped Rockhopper that’s absolutely prepared to fly.
At a Glance
- A heart of gold, presented in our lightweight yet durable Premium A1 Aluminum, the Rockhopper features butted aluminum tubes in order to keep weight low and strength high, all while providing increased standover clearance, slick internal cable routing and dropper-post compatibility.
- 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.
- A breath of fresh air at this price point—and plenty north of it, RockShox’s Judy SoloAir brings air-sprung sensitivity and performance to the masses with a killer value proposition: more bang, less buck. The TurnKey damper deftly dishes out travel letting you focus on what’s ahead.
- Soar up climbs and dive down descents with SRAM's ultra-wide-range SX Eagle 1x12 drivetrain.
- Tubeless-ready rims and tires keep your options open and traction on-call.
- (Rear Hub) FREEHUB, FH-RM35, 32H 8/9/10-SPEEDOLD:135MM AXLE:146MM QR:170MM(BLACK)FOR CENTER LOCK DISC BRAKE(W/O LOCK RING)W/O ROTOR MOUNT COVER, BLACK, BULK
Component Specifications
| 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 |
| Fork | RockShox Judy, Solo Air, Turnkey damper, 42mm offset, QR, 80/90/100mm travel (size-specific), alloy steerer |
| Shift Levers | SRAM SX Eagle, trigger, 12-speed |
| Rear Derailleur | SRAM SX Eagle, 12-speed |
| Cassette | SRAM PG-1210 Eagle, 11-50t |
| Chain | SRAM SX Eagle, 12-speed |
| Crankset | SRAM SX Eagle, Powerspline |
| Bottom Bracket | SRAM Powerspline |
| Rims | Specialized Alloy, hookless, Tubeless ready, 25mm inner width |
| Front Hub | Shimano HB-RM35, Center Lock™ disc, 9x100mm spacing, quick-release, 28h |
| Rear Hub | Shimano FH-RM35, Center Lock™ disc, 9x135mm spacing, quick-release, 32h |
| Spokes | Stainless, 14g |
| Front Tire | Ground Control, Control casing, GRIPTON® compound, 60 TPI, 2Bliss Ready, 27.5x2.3" |
| Rear Tire | Ground Control, Control casing, GRIPTON® compound, 60 TPI, 2Bliss Ready, 27.5x2.3" |
| Inner Tubes | Presta, 40mm valve |
| Front Brake | SRAM Level, hydraulic disc, 180/160mm |
| Rear Brake | SRAM Level, 2-piston caliper, hydraulic disc, 180mm |
| Stem | Stout 3D-forged alloy, 31.8mm, 6-degree rise |
| Handlebars | Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
| Grips | Specialized Trail Grips, lock-on |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| Seatpost | Alloy, 2-bolt clamp, 30.9mm |
Specialized Rockhopper Expert 27.5
| Bike/Frame Size | XS | S | M |
|---|---|---|---|
| Stack | 559 mm | 573 mm | 589 mm |
| Reach | 375 mm | 395 mm | 415 mm |
| Chain-Stay Length | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1067 mm | 1092 mm | 1118 mm |
| Top-Tube Length (horizontal) | 541 mm | 565 mm | 589 mm |
| Bike Stand-Over Height | 658 mm | 695 mm | 735 mm |
| Seat-Tube Length | 310 mm | 350 mm | 400 mm |
| Seat-Tube Angle | 73.5° | 73.5° | 73.5° |
| Head-Tube Length | 95 mm | 100 mm | 105 mm |
| Head-Tube Angle | 68° | 68° | 68° |
| B-B Height | 310 mm | 310 mm | 310 mm |
| B-B Drop | 43 mm | 43 mm | 43 mm |
| Trail | 97 mm | 97 mm | 97 mm |
| Fork Length (full) | 475 mm | 485 mm | 495 mm |
| Fork Rake/Offset | 42 mm | 42 mm | 42 mm |
| Front-Center | 630 mm | 656 mm | 682 mm |
Size Guide: Specialized Rockhopper Expert 27.5
