2025 Specialized Rockhopper vs 2025 Specialized Chisel Hardtail
The S is the Specialized Chisel Hardtail size closest to your S - 27.5 Specialized Rockhopper. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Chisel Hardtail
Compared with the Specialized Rockhopper in S - 27.5, the Specialized Chisel Hardtail in S places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket. Its wheelbase is 6 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −2 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- −6 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- −8 mm
- Shorter: livelier
The two frames
Specialized Rockhopper, S - 27.5Specialized Chisel Hardtail, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Rockhopper S - 27.5 | Specialized Chisel Hardtail S | Difference |
|---|---|---|---|
| Reach | 405mm | 405mm | ±0 mm |
| Stack | 607mm | 605mm | −2 mm |
| Head tube angle | 68.5° | 68° | −0.5° |
| Seat tube angle | 73.5° | 74° | +0.5° |
| Effective top tube | not listed | not listed | |
| Chainstay length | 440mm | 432mm | −8 mm |
| Wheelbase | 1105mm | 1099mm | −6 mm |
| BB drop | not listed | 63mm | |
| BB height | 310 | 309mm | −1 mm |
| Standover | 732mm | 762mm | +30 mm |
| Seat tube length | 360mm | 400mm | +40 mm |
| Fork length | 505mm | 506mm | +1 mm |
| Head tube length | 95mm | 95mm | ±0 mm |
Differences are the Specialized Chisel Hardtail minus the Specialized Rockhopper. Full charts: 2025 Specialized Rockhopper, 2025 Specialized Chisel Hardtail.
Where each sits in its class
Specialized RockhopperSpecialized Chisel Hardtail
Each bike is ranked against the other XC bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized RockhopperRockhopper | Specialized Chisel HardtailHardtail |
|---|---|---|
| Frame | Specialized A1 | Specialized D'Aluisio Smartweld M5 |
| Fork | SR Suntour XCM | not listed |
| Shifter | Shimano Altus | not listed |
| Derailleur | Shimano Altus M2020, Shimano Altus M2000 | not listed |
| Cassette | SunRace 11-36 | not listed |
| Chain | KMC X9EPT | not listed |
| Crankset | Specialized Stout | not listed |
| Pedals | Specialized Flat Pedal | not listed |
| Wheelset | Formula SP-2125 | not listed |
| Tire | Specialized Fast Trak Sport | not listed |
| Hub | Formula SP-2125 | not listed |
| Brake | Shimano MT200 | not listed |
| Rotor | Shimano MT200 | not listed |
| Handlebar | Specialized Mini Rise | not listed |
| Stem | Specialized Stout | not listed |
| Grips | Specialized Trail | not listed |
| Saddle | Specialized Bridge Sport | not listed |
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