Velopedia Bicycle Archive
2027 Specialized Rockhopper Expert
Original specifications: 27.5; 29 wheels · 13.11 kg (28 lb, 14.4 oz) published weight · geometry for 8 published sizes.
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At a glance
- Model year
- 2027
- Category
- Mountain
- Original MSRP
- $1,299.99
- Sizes
- XS - 27.5, S - 27.5, M - 27.5, S - 29, M - 29, L - 29, XL - 29, XXL - 29
- Colors
- Gloss Charcoal Tint Aluminum / Amethyst Frost, Gloss Red Tint Aluminum / White
- Weight
- 13.11 kg (28 lb, 14.4 oz)
- Geometry
- 8 manufacturer sizes
- In this record
- 22 specifications · 8 archived images · original MSRP · geometry
- Archive ID
- 900000961
Model history 4 other years
Original buildAluminum · 27.5; 29
Frameset
| 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), alloy steerer |
| Fork Material | Aluminum |
Drivetrain
| Shifters | SRAM S200 Eagle Trigger Shifter |
|---|---|
| Rear Derailleur | SRAM S200 Eagle |
| Crankset | SRAM Eagle S100, 30T |
| Bottom Bracket | SRAM Powerspline |
| Cassette | SRAM PG-1210 Eagle, 11-50T |
| Chain | SRAM CN S200 Eagle Drvtrn XXX Link |
| Pedals | Specialized, platform |
Brakes
| Brakes | (F) SRAM DB6, 4-piston caliper, hydraulic disc, 180mm rotor / (R) SRAM DB6, 4-piston caliper, hydraulic disc, 160mm rotor |
|---|
Cockpit & Contact Points
| Handlebar | Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm |
|---|---|
| Stem | 3D-forged alloy, 31.8mm, 7-degree rise |
| Saddle | Body Geometry Power Sport, steel rails |
| Seatpost | Alloy, 2-bolt clamp, 30.9mm |
Wheels & Tires
| 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 |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements8 sizes · 19 measurements
| 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 | 170 mm | 175 mm | 175 mm |
| Stem length | 40 mm | 40 mm | 60 mm | 40 mm | 60 mm | 60 mm | 70 mm | 70 mm |
| Handlebar width | 700 mm | 720 mm | 740 mm | 720 mm | 740 mm | 740 mm | 740 mm | 740 mm |
| Wheel size | 27.5in | 27.5in | 27.5in | 29in | 29in | 29in | 29in | 29in |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts
More parts (1)
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Bike-specific inspection checklist 21 checks based on 6 archived component groups Open checklistClose checklist
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.
Identity and fit
Follow the full used-bike inspection order →Archived: 2027 Specialized Rockhopper Expert · Mountain · Published sizes: XS - 27.5, S - 27.5, M - 27.5, S - 29, M - 29, L - 29, XL - 29, XXL - 29
Frame and fork
Inspect the frame and fork →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), alloy steerer · Aluminum
Suspension
Evaluate the suspension →Archived: Fork: RockShox Judy, Solo Air, Turnkey damper, 46mm offset, QR, 80/90/100mm travel (size-specific), alloy steerer
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM S200 Eagle Trigger Shifter · Rear derailleur: SRAM S200 Eagle · Crankset: SRAM Eagle S100, 30T · Bottom bracket: SRAM Powerspline · Cassette: SRAM PG-1210 Eagle, 11-50T · Chain: SRAM CN S200 EAGLE DRVTRN XXX LINK
Brakes
Inspect the brakes →Archived: Brakes: (F) SRAM DB6, 4-piston caliper, hydraulic disc, 180mm rotor / (R) SRAM DB6, 4-piston caliper, hydraulic disc, 160mm rotor
Wheels and tires
Check wheels and tires →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
Controls and contact points
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: Body Geometry Power Sport, steel rails · Pedals: Specialized, platform
Before and during the test ride
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Gallery8 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




