
Velopedia Bicycle Archive
2006 Specialized Hotrock A1 FSR
Mountain bike, front & rear suspension bicycle from the Velopedia specification archive.
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- Original MSRP
- $350.00
- Sizes
- 11.5"
- Archive ID
- 11851
Current market
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Velopedia analysis
What the specifications mean
The fork and rear shock need to be set up as a pair. If their sag or rebound settings are far apart, the front and rear of the bike can react very differently. The 200% cassette range describes the available gearing more clearly than the component-group name alone. With rim brakes, the wheel’s braking surface is part of the system, so rim wear matters alongside pads and cables.
Used-bike inspection
If you’re buying this bike used
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 →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
- BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.Inspect the brakes →
- SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 7-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 22 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: 2006 Specialized Hotrock A1 FSR · Mountain bike, front & rear suspension · Published sizes: 11.5"
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: RST Capa T5, 51mm · Steel/aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: RST Capa T5, 51mm · Rear shock: ToughShock Coil over, 150x31mm, 3" travel
Drivetrain
Check drivetrain wear →Archived: Group: Juvenile Mix · Shifters: Shimano RS-41 "Revo" twist shifters, 3/7speed · Front derailleur: Shimano Acera, 31.8 clamp, bottom pull · Rear derailleur: Shimano Altus · Crankset: Truvativ “ISO Flow”, alloy 160mm with replaceable chainrings and capless bo, Truvativ 42t 7075alloy, heat treated Cr-Mo 32t and 22t teeth · Bottom bracket: TruVativ LE, 113mm spindle · Rear cogs: 7-speed, 14 - 28 teeth · Chain: Shimano
Brakes
Inspect the brakes →Archived: Brakes: Tektro, alloy linear pull, stainless steel pipe, 60mm all weather pads brakes, Tektro junior “V”, alloy, linear pull compatible levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 24" wheels · Rims: Alex, 32-hole · Hubs: Front: Alloy, double sealed with alloy QR, Rear: Alloy, double sealed with alloy QR, freewheel type · Front tire: 24 x 1.80" Specialized Roll X
Controls and contact points
Archived: Headset: 1 1/8" threadless, sealed loose ball · Handlebar: Alloy, flat, 6 degree sweep, 540mm width · Stem: A-Head alloy, 15 degree rise, 75mm length · Seatpost: Alloy, micro adjust, 27.2mm diameter · Saddle: Specialized Mini Mountain · Pedals: Steel cage, resin body(toe clip compatible) with reflectors
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium Aluminum |
| Fork | RST Capa T5, 51mm |
| Fork Material | Steel/aluminum, single crown |
| Rear Shock | ToughShock Coil over, 150x31mm, 3" travel |
Drivetrain
| Component Group | Juvenile Mix |
|---|---|
| Shifters | Shimano RS-41 "Revo" twist shifters, 3/7speed |
| Front Derailleur | Shimano Acera, 31.8 clamp, bottom pull |
| Rear Derailleur | Shimano Altus |
| Crankset | Truvativ “ISO Flow”, alloy 160mm with replaceable chainrings and capless bo, Truvativ 42t 7075alloy, heat treated Cr-Mo 32t and 22t teeth |
| Bottom Bracket | TruVativ LE, 113mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 7-speed, 14 - 28 teeth |
| Chain | Shimano |
| Pedals | Steel cage, resin body(toe clip compatible) with reflectors |
Brakes
| Brakes | Tektro, alloy linear pull, stainless steel pipe, 60mm all weather pads brakes, Tektro junior “V”, alloy, linear pull compatible levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless, sealed loose ball |
|---|---|
| Handlebar | Alloy, flat, 6 degree sweep, 540mm width |
| Handlebar Extensions | Not included |
| Stem | A-Head alloy, 15 degree rise, 75mm length |
| Saddle | Specialized Mini Mountain |
| Seatpost | Alloy, micro adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Front: Alloy, double sealed with alloy QR, Rear: Alloy, double sealed with alloy QR, freewheel type |
|---|---|
| Rims | Alex, 32-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 24 x 1.80" Specialized Roll X |
| Wheel Size | 24" wheels |
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



