
Velopedia Bicycle Archive
2003 Nirve Hex
Original specifications: N/A drivetrain · 20" wheels.
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At a glance
- Model year
- 2003
- Category
- BMX
- Original MSRP
- $409.99
- Sizes
- Expert
- Colors
- Metallic Gray
- In this record
- 22 specifications · archived image · original MSRP
- Archive ID
- 30718
Model history 1 other year
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 4130 chromoly |
| Fork | Nirve |
| Fork Material | Chromoly, unicrown crown |
Drivetrain
| Crankset | Voxom 3-piece, 44 teeth |
|---|---|
| Bottom Bracket | Sealed cartridge |
| BB Shell Width | 68mm American |
| Rear Cogs | 1-speed |
| Chain | KMC Z-510HX, 1/2 X 1/8" |
| Pedals | Voxom Alloy Platform |
Brakes
| Brakes | Tektro FX-20 U-brake rear brakes, Dia-Compe Tech 77 rear levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Dia-Compe Tank |
|---|---|
| Handlebar | Voxom Chromoly Trail |
| Stem | Aluminum |
| Saddle | Nirve Padded |
| Seatpost | Steel micro-adjust, 25.4mm diameter |
Wheels & Tires
| Hubs | Voxom Dumbbell |
|---|---|
| Rims | Alex Supra E, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | Front: 20 x 2.125" Voxom Factor 9, Rear: 20 x 1.95" Voxom Rubbers |
| Wheel Size | 20" wheels |
Parts & serviceability
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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 →- FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.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 →
Bike-specific inspection checklist 19 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: 2003 Nirve Hex · Freestyle/jumping · Published sizes: Expert
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Nirve · Chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Crankset: Voxom 3-piece, 44 teeth · Bottom bracket: Sealed cartridge · Rear cogs: 1-speed · Chain: KMC Z-510HX, 1/2 x 1/8"
Brakes
Inspect the brakes →Archived: Brakes: Tektro FX-20 U-brake rear brakes, Dia-Compe Tech 77 rear levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" wheels · Rims: Alex Supra E, 36-hole · Hubs: Voxom Dumbbell · Front tire: Front: 20 x 2.125" Voxom Factor 9, Rear: 20 x 1.95" Voxom Rubbers
Controls and contact points
Archived: Headset: 1 1/8" threadless Dia-Compe Tank · Handlebar: Voxom Chromoly Trail · Stem: Aluminum · Seatpost: Steel micro-adjust, 25.4mm diameter · Saddle: Nirve Padded · Pedals: Voxom Alloy Platform
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.
Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.
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Record source
Historical archive database record. The original source URL is not retained in this record.
Archived equipment may differ from the bike in front of you. Send a correction with Archive ID 30718 and supporting documentation.
Current market
Snapshot not yet availableScroll or tap to check for a market update.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




