
Velopedia Bicycle Archive
2011 Diamondback Reactor Pro
Original manufacturer specifications including BMX Mix drivetrain, 20" wheels.
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What Velopedia knows
- Model year
- 2011
- Category
- BMX
- Colors
- Red/white
- Record coverage
- 24 preserved details · archived image
- Archive ID
- 23546
Model history 8 other years
Frameset
| Frame Construction | Aluminum |
|---|---|
| Frame Material | 7005 heat treated Aluminum |
| Fork | Full chromoly |
| Fork Material | Steel |
| Rear Shock | N/A |
Drivetrain
| Component Group | BMX Mix |
|---|---|
| Crankset | FSA Assault |
| Bottom Bracket | FSA BB30 |
| Rear Cogs | 1-speed, 16 teeth |
| Chain | KMC, 1/2 x 1/8" |
| Pedals | DB Sound alloy |
Cockpit & Contact Points
| Headset | 1 1/8" FSA Internal |
|---|---|
| Handlebar | Full chromoly 2-piece |
| Handlebar Extensions | Not included |
| Stem | DB Reactor |
| Saddle | DB Race |
| Seatpost | Alloy Micro Adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Front: Aluminum Shell w/ Sealed Bearings, Rear: Aluminum Shell |
|---|---|
| Rims | Front: Alienation Deviant, Rear: alienation 440, 36-hole |
| Spokes | 14ga. (2.0mm) |
| Front Tire | Front: 20 x 2.125" Kenda Small Block 8, Rear: 20 x 1.75" Kenda Small Block 8 |
| Wheel Size | 20" wheels |
Parts & serviceability
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More qualified parts (1)
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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 →
- BrakesIdentify the installed brake system before riding or ordering parts. Test every installed brake separately at walking speed, confirm it stops firmly and releases cleanly, then inspect its pads, braking surfaces and complete cable or hose path.Inspect the brakes →
- DrivetrainShift through the full range under light load, measure chain wear and inspect the cassette or freewheel teeth. Skipping or hesitation can indicate wear, poor adjustment or mismatched parts.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 →
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 18 checks based on 5 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: 2011 Diamondback Reactor Pro · BMX
Frame and fork
Inspect the frame and fork →Archived: Frame: Aluminum · Fork: Full chromoly · Steel
Drivetrain
Check drivetrain wear →Archived: Group: BMX Mix · Crankset: FSA Assault · Bottom bracket: FSA BB30 · Rear cogs: 1-speed, 16 teeth · Chain: KMC, 1/2 x 1/8"
Brakes
Inspect the brakes →Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" wheels · Rims: Front: Alienation Deviant, Rear: alienation 440, 36-hole · Hubs: Front: Aluminum Shell w/ Sealed Bearings, Rear: Aluminum Shell · Front tire: Front: 20 x 2.125" Kenda Small Block 8, Rear: 20 x 1.75" Kenda Small Block 8
Controls and contact points
Archived: Headset: 1 1/8" FSA Internal · Handlebar: Full chromoly 2-piece · Stem: DB Reactor · Seatpost: Alloy Micro Adjust, 27.2mm diameter · Saddle: DB Race · Pedals: DB Sound alloy
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Current market
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




