Rockhopper Comp 27.5
2021 Rockhopper Comp 27.5
A summer blockbuster with an eye for adventure, the Rockhopper Comp lives for high action and fast-paced plot twists and features an all-new, Premium A1 Aluminum frame making its singletrack debut.
Roll the credits to discover an SR SunTour XCM fork with a custom two-way damping circuit, Stout wheelset, Tektro HD-M275 hydraulic stoppers and microSHIFT’s wide-range 1x9 drivetrain and you have backup provided by a supporting cast that’s all thriller and no filler, but will never leave you hanging.
Technical Specifications
Wheels & Tires
Rims
Stout Alloy, hookless, double-wall, 25mm inner width
Front Hub
Shimano HB-TX505, Center Lock™ disc, 9x100mm spacing, quick-release, 28h
Rear Hub
Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
Front Tire
Ground Control Sport, 27.5x2.3"
Spokes
Stainless, 14g
Rear Tire
Ground Control Sport, 27.5x2.3"
Inner Tubes
Presta, 40mm valve
Frameset
Seat Binder
Alloy, quick release, 34.9
Brakes
Front Brake
Tektro HD-M275, hydraulic disc, 180/160mm
Rear Brake
Tektro HD-M275, hydraulic disc, 160mm
Cockpit
SeatPost
Alloy, 2-bolt clamp, 30.9mm
Stem
Stout 3D-forged alloy, 31.8mm, 6-degree rise
Saddle
Bridge Sport, Steel rails, 155/143mm
Handlebars
Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Grips
Specialized Trail Grips, lock-on
Drivetrain
Shift Levers
microSHIFT Advent, 9-speed
Rear Derailleur
microSHIFT Advent, 1x9 w/ clutch
Cassette
microSHIFT Advent, 9-speed, 11-42t
Chain
KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
Crankset
Stout 1x, forged alloy
Bottom Bracket
Square-tapered, 73mm, internal bearings, 122.5mm spindle
Suspension
Fork
SR Suntour XCM 27.5, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 80/90/100mm travel (size-specific), 42mm offset
* 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 | 35mm | 45mm | 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° |
Rider Reviews
- 4.3
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