Rockhopper
OverviewAbout the Specialized Rockhopper
The Specialized Rockhopper is a mountain bike, built on a aluminium frame, listed at $950. An off-road bike for trails, with grippy tyres and trail-ready geometry.
SizingWhat size Rockhopper do I need?
Enter your height to see the size we would start with.
| Size | Rider height | In feet |
|---|---|---|
| XS | 142 to 155 cm | 4 ft 8 in to 5 ft 1 in |
| S | 152 to 165 cm | 5 ft 0 in to 5 ft 5 in |
| M | 165 to 177 cm | 5 ft 5 in to 5 ft 10 in |
| L | 177 to 188 cm | 5 ft 10 in to 6 ft 2 in |
| XL | 188 to 198 cm | 6 ft 2 in to 6 ft 6 in |
Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
- Brand
- Specialized
- Model year
- 2026
- Category
- Mountain
- Frame
- Aluminium
- Wheel size
- 29-inch (27.5-inch on the smallest sizes)
- Drivetrain
- Shimano Altus 2x9
- Brakes
- Disc
- Frame sizes
- XXS (26), XS (27.5), S (27.5), S (29), M (27.5), M (29), L (29), XL (29), XXL (29)
- Price
- $950, RRP AUD (Specialized Australia, checked 17 Oct 2026)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize M (27.5)
- Stack
- 607 mm
- Reach
- 405 mm
- Stack/reach
- 1.50
- Head angle
- 68.5 deg
- Seat angle
- 73.5 deg
- Wheelbase
- 1105 mm
- Chainstay
- 440 mm
- BB drop
- 62 mm
- Standover
- 658 mm
- Fork rake
- 40 mm
Drivetrain & buildFull specification
- Groupset
- Shimano Altus
- Shifting
- Mechanical
- Drive
- 2x
- Speeds
- 9
- Crank
- Stout 2x, forged alloy
- Cassette
- SunRace, 9-Speed, 11-36t
- Rear derailleur
- Shimano Altus, 9-speed
- Brakes
- Tektro HD-M280, 2-piston caliper, hydrailic disc
- Wheelset
- Specialized alloy, disc only, double-wall, 25mm inner width, 32h
- Stock tyre
- 29x2.35
- Fork material
- SR Suntour XCE 26/27.5/29
- BB standard
- Square-tapered, 73mm, internal bearings, 122.5mm spindle
- Cockpit
- Stout 3D-forged alloy, 31.8mm, 6-degree rise / Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
- Saddle
- Bridge Sport, Steel rails, 155/143mm
SuspensionMTB detail
- Front travel
- 100 mm
- Fork
- SR Suntour XCE 26/27.5/29
- Wheel config
- 29
- Discipline
- XC
- Suspension
- hardtail
Bike DNAWhat the numbers say
- Steering
- A 68.5 deg head angle points to balanced trail handling.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (Specialized Australia product page 4279922 (spec list and geometry chart)), verified 2026-10-17. This is a specification analysis, not a physical ride review.
Where to buyStockist
BikeFinder is an independent directory. We link to retailers; prices and stock are set by the seller and shown as at the date checked.
