Velopedia Bicycle Archive
2007 Specialized Hotrock A1 FSR
Original specifications: Shimano Altus · 7-speed · mechanical rear derailleur · 24" wheels.
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At a glance
- Model year
- 2007
- Category
- Kids
- Original MSRP
- $660.00
- Sizes
- One size fits all
- Colors
- Flo Red
- In this record
- 27 specifications · archived image · original MSRP
- Archive ID
- 16619
Model history 4 other years
Original buildSpecialized A1 Premium Aluminum · Juvenile Mix · 24" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Specialized A1 Premium Aluminum |
| Fork | RST Capa T7A, 50mm |
| Fork Material | Steel/aluminum, single crown |
| Rear Shock | Tough Shock FDR |
Drivetrain
| Component Group | Juvenile Mix |
|---|---|
| Shifters | Shimano RS-41 Revo Twist |
| Front Derailleur | Shimano Acera |
| Rear Derailleur | Shimano Altus |
| Crankset | TruVativ ISO-Flow, 22/32/42 teeth |
| Bottom Bracket | TruVativ cartridge, 113mm spindle |
| BB Shell Width | 68mm |
| Rear Cogs | 7-speed, 14 - 28 teeth |
| Chain | Shimano HG-40 |
| Pedals | Steel cage, composite body |
Brakes
| Brakes | Tektro V-brake brakes, Tektro Jr. levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless |
|---|---|
| Handlebar | Alloy riser |
| Handlebar Extensions | Not included |
| Stem | Alloy A-Head |
| Saddle | Specialized Body Geometry ATB Kid's |
| Seatpost | Alloy micro adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Alloy QR |
|---|---|
| Rims | Specialized/Alex HRXC, 32-hole |
| Spokes | Stainless steel, 15ga. (1.8mm) straight gauge |
| Front Tire | 24 x 1.80" Specialized Roll-X |
| Wheel Size | 24" 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 (3)

Cervelo SP19 Carbon Seatpost Black, 27.2mm, 0mm offset, 350mm long
27.2mm, 0mm offset, 350mm long
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 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: 2007 Specialized Hotrock A1 FSR · Juvenile mountain bike, suspension · Published sizes: One size fits all
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: RST Capa T7A, 50mm · Steel/aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: RST Capa T7A, 50mm · Rear shock: Tough Shock FDR
Drivetrain
Check drivetrain wear →Archived: Group: Juvenile Mix · Shifters: Shimano RS-41 Revo Twist · Front derailleur: Shimano Acera · Rear derailleur: Shimano Altus · Crankset: TruVativ ISO-Flow, 22/32/42 teeth · Bottom bracket: TruVativ cartridge, 113mm spindle · Rear cogs: 7-speed, 14 - 28 teeth · Chain: Shimano HG-40
Brakes
Inspect the brakes →Archived: Brakes: Tektro V-brake brakes, Tektro Jr. levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 24" wheels · Rims: Specialized/Alex HRXC, 32-hole · Hubs: Alloy QR · Front tire: 24 x 1.80" Specialized Roll-X
Controls and contact points
Archived: Headset: 1 1/8" threadless · Handlebar: Alloy riser · Stem: Alloy A-Head · Seatpost: Alloy micro adjust, 27.2mm diameter · Saddle: Specialized Body Geometry ATB Kid's · Pedals: Steel cage, composite body
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.


