Velopedia Bicycle Archive
2001 Specialized Rockhopper A1 Comp FS
Original specifications: Shimano Deore LX · 9-speed · mechanical rear derailleur · 26" wheels.
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At a glance
- Model year
- 2001
- Category
- Mountain
- Original MSRP
- $925.00
- Sizes
- 13", 15", 17", 19", 21", 23"
- Colors
- Black/White, Blue/Black
- In this record
- 27 specifications · archived image · original MSRP
- Archive ID
- 35764
Model history 4 other years
Original buildSpecialized A1 aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Specialized A1 aluminum |
| Fork | Rock Shox Judy C |
| Fork Material | Aluminum/magnesium, triple-clamp crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano Deore RapidFire SL |
| Front Derailleur | Shimano Deore |
| Rear Derailleur | Shimano Deore LX SGS |
| Crankset | Specialized Forearm 2 Comp, 22/32/44 teeth |
| Bottom Bracket | Shimano BB-LP27, 113mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 9-speed, 11 - 32 teeth |
| Chain | Shimano, 1/2 x 3/32" |
| Pedals | Shimano PD-M515 SPD |
Brakes
| Brakes | ProMax linear-pull brakes, Shimano Deore levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Tange Seiki |
|---|---|
| Handlebar | Specialized aluminum |
| Handlebar Extensions | Not included |
| Stem | Specialized aluminum |
| Saddle | Specialized Body Geometry Sport |
| Seatpost | Specialized aluminum, 30.9mm diameter |
Wheels & Tires
| Hubs | Front: Specialized aluminum, Rear: Specialized Megaphone Comp |
|---|---|
| Rims | Mavic X 139 N, 32-hole |
| Spokes | Specialized stainless steel, 1.8mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | Front: 26 x 1.90" Specialized Team Control Sport, Rear: 26 x 1.90" Specialized Team Master Sport |
| Wheel Size | 26" wheels |
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 (6)

ENVE Twin Bolt Seatpost - Zero Offset UD Carbon, 30.9x400mm
30.9x400mm
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 20 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: 2001 Specialized Rockhopper A1 Comp FS · Mountain bike, front suspension · Published sizes: 13", 15", 17", 19", 21", 23"
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Rock Shox Judy C · Aluminum/magnesium, triple-clamp crown
Suspension
Evaluate the suspension →Archived: Fork: Rock Shox Judy C
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano Deore RapidFire SL · Front derailleur: Shimano Deore · Rear derailleur: Shimano Deore LX SGS · Crankset: Specialized Forearm 2 Comp, 22/32/44 teeth · Bottom bracket: Shimano BB-LP27, 113mm spindle · Rear cogs: 9-speed, 11 - 32 teeth · Chain: Shimano, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: ProMax linear-pull brakes, Shimano Deore levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Mavic X 139 N, 32-hole · Hubs: Front: Specialized aluminum, Rear: Specialized Megaphone Comp · Front tire: Front: 26 x 1.90" Specialized Team Control Sport, Rear: 26 x 1.90" Specialized Team Master Sport
Controls and contact points
Archived: Headset: 1 1/8" threadless Tange Seiki · Handlebar: Specialized aluminum · Stem: Specialized aluminum · Seatpost: Specialized aluminum, 30.9mm diameter · Saddle: Specialized Body Geometry Sport · Pedals: Shimano PD-M515 SPD
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




