
Used · USD 449.99
Velopedia Bicycle Archive
Mountain bicycle from the Velopedia specification archive.
Recently checked market
2 close matchesMove, scroll, tap or type to start the protected update.
Velopedia analysis
Suspension is concentrated at the fork, so fork setup and rear-tire pressure are the main tools for balancing front and rear behavior. Both 27.5- and 29-inch wheels appear in the record, but it does not establish a mixed front/rear build; confirm the correct diameter for the selected frame size. The 455% cassette range describes the available gearing more clearly than the component-group name alone.
Used-bike inspection
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Archived: 2027 Specialized Rockhopper Comp · Mountain · Published sizes: XS - 27.5; S - 27.5; M - 27.5; S - 29; M - 29; L - 29; XL - 29; XXL - 29
Archived: 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), steel steerer · Steel
Archived: Fork: RockShox Judy, Solo Air, Turnkey damper, 46mm offset, QR, 80/90/100mm travel (size-specific), steel steerer
Archived: Shifters: SRAM SL S100 Shift Lever · Rear derailleur: SRAM S100, 12 Speed · Crankset: Stout 1x, forged alloy · Bottom bracket: Square-tapered, 73mm, internal bearings, 122.5mm spindle · Cassette: SRAM PG-1210 Eagle, 11-50T · Chain: SRAM S100, 12-speed
Archived: Brakes: (F) Tektro HD-M280, 2 Piston Hydraulic Brake, 180mm Rotor / (R) Tektro HD-M280, 2 Piston Hydraulic Brake, 180mm Rotor
Archived: Wheel size: 27.5; 29 · Rims: Specialized Alloy, hookless, Tubeless ready, 25mm inner width · Hubs: (F) Alloy, Sealed bearing, 6-Bolt, disc, 100x9mm spacing, quick-release / (R) Alloy Sealed bearing, 6-Bolt, disc, 135x9mm spacing, quick-release · Front tire: Ground Control, 27.5/29x2.35, T5 · Rear tire: Ground Control, 27.5/29x2.35, T5
Archived: Handlebar: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm · Stem: 3D-forged alloy, 31.8mm, 7-degree rise · Seatpost: Alloy, 2-bolt clamp, 30.9mm · Saddle: Bridge Sport, Steel rails, 155/143mm · Pedals: Specialized, platform
Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
| Frame Construction | 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 |
|---|---|
| Frame Material | Aluminum |
| Fork | RockShox Judy, Solo Air, Turnkey damper, 46mm offset, QR, 80/90/100mm travel (size-specific), steel steerer |
| Fork Material | Steel |
| Shifters | SRAM SL S100 Shift Lever |
|---|---|
| Rear Derailleur | SRAM S100, 12 Speed |
| Crankset | Stout 1x, forged alloy |
| Bottom Bracket | Square-tapered, 73mm, internal bearings, 122.5mm spindle |
| BB Shell Width | 73 mm |
| Cassette | SRAM PG-1210 Eagle, 11-50T |
| Chain | SRAM S100, 12-speed |
| Pedals | Specialized, platform |
| Brakes | (F) Tektro HD-M280, 2 Piston Hydraulic Brake, 180mm Rotor / (R) Tektro HD-M280, 2 Piston Hydraulic Brake, 180mm Rotor |
|---|
| Handlebar | Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm |
|---|---|
| Stem | 3D-forged alloy, 31.8mm, 7-degree rise |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| Seatpost | Alloy, 2-bolt clamp, 30.9mm |
| Hubs | (F) Alloy, Sealed bearing, 6-Bolt, disc, 100x9mm spacing, quick-release / (R) Alloy Sealed bearing, 6-Bolt, disc, 135x9mm spacing, quick-release |
|---|---|
| Rims | Specialized Alloy, hookless, Tubeless ready, 25mm inner width |
| Spokes | Stainless, 14g |
| Front Tire | Ground Control, 27.5/29x2.35, T5 |
| Rear Tire | Ground Control, 27.5/29x2.35, T5 |
| Wheel Size | 27.5; 29 |
Size-specific frame data
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | XS - 27.5 | S - 27.5 | M - 27.5 | S - 29 | M - 29 | L - 29 | XL - 29 | XXL - 29 |
|---|---|---|---|---|---|---|---|---|
| Seat tube | 310 mm | 350 mm | 400 mm | 360 mm | 400 mm | 450 mm | 500 mm | 560 mm |
| Effective top tube | 541 mm | 565 mm | 589 mm | 586 mm | 608 mm | 630 mm | 654 mm | 679 mm |
| Head tube | 95 mm | 100 mm | 105 mm | 95 mm | 95 mm | 105 mm | 120 mm | 135 mm |
| Head-tube angle | 68° | 68° | 68° | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° |
| Seat-tube angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
| Chainstay / rear center | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1067 mm | 1092 mm | 1118 mm | 1105 mm | 1128 mm | 1152 mm | 1178 mm | 1203 mm |
| Bottom-bracket drop | 43 mm | 43 mm | 43 mm | 62 mm | 62 mm | 62 mm | 62 mm | 62 mm |
| Bottom-bracket height | 310 mm | 310 mm | 310 mm | 310 mm | 310 mm | 310 mm | 310 mm | 310 mm |
| Reach | 375 mm | 395 mm | 415 mm | 405 mm | 425 mm | 445 mm | 465 mm | 485 mm |
| Stack | 559 mm | 573 mm | 589 mm | 607 mm | 616 mm | 626 mm | 640 mm | 654 mm |
| Fork offset / rake | 42 mm | 42 mm | 42 mm | 46 mm | 46 mm | 46 mm | 46 mm | 46 mm |
| Front center | 630 mm | 656 mm | 682 mm | 672 mm | 696 mm | 719 mm | 745 mm | 770 mm |
| Trail | 97 mm | 97 mm | 97 mm | 97 mm | 97 mm | 97 mm | 97 mm | 97 mm |
| Fork length / axle-to-crown | 475 mm | 485 mm | 495 mm | 505 mm | 515 mm | 515 mm | 515 mm | 515 mm |
| Crank length | 165 mm | 170 mm | 170 mm | 170 mm | 170 mm | 175 mm | 175 mm | — |
| Stem length | 40 mm | 40 mm | 60 mm | 40 mm | 60 mm | 60 mm | 70 mm | — |
| Handlebar width | 700 mm | 720 mm | 740 mm | 720 mm | 740 mm | 740 mm | 740 mm | — |
| Wheel size | 27.5in | 27.5in | 27.5in | 29in | 29in | 29in | 29in | 29in |
Geometry source: Reviewed manufacturer geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Recently checked marketplace data
Velopedia found 1 close used listing. That is not enough to publish a responsible market indication.
Affiliate disclosure: As an eBay Partner, Velopedia may be compensated if you make a purchase through these links.

Used · USD 449.99

New · USD 1050.00
Listings shown have not passed their eBay-supplied end time. Velopedia rechecks matched bicycles on a protected weekly cycle; availability can still change between checks. Asking prices are not completed-sale prices or an appraisal. Only Velopedia's high-confidence matches are included; lower-confidence Review candidates are excluded. Browse recently checked matched listings.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.