
Velopedia Bicycle Archive
2005 Specialized Bighit Grom SPEC
Mountain bike, front & rear suspension bicycle from the Velopedia specification archive.
- Original MSRP
- $900.00
- Sizes
- Short
- Colors
- Red
- Archive ID
- 10589
Current market
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Velopedia analysis
What the specifications mean
Suspension at both ends means fork and shock setup should be considered together; mismatched sag or rebound can leave the front and rear reacting very differently. The 291% cassette range describes the available gearing more clearly than the component-group name alone. On the alloy frame, dents and hairline cracks around welds, pivots and heavily loaded junctions matter more than cosmetic scratches.
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 →
- 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 →
- 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 8-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: 2005 Specialized Bighit Grom SPEC · Mountain bike, front & rear suspension · Published sizes: Short
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Marzocchi MZ Comp, 100mm · Aluminum/magnesium, dual crown
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi MZ Comp, 100mm · Rear shock: Coil-over, damped, 125mm
Drivetrain
Check drivetrain wear →Archived: Group: Downhill Mix · Shifters: Shimano Alivio · Rear derailleur: Shimano Alivio · Crankset: TruVativ Hussefelt, 38 teeth · Bottom bracket: TruVativ Hussefelt, 118mm spindle · Rear cogs: 8-speed, 11 - 32 teeth · Chain: Shimano CN-IG31, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Hayes HMX-2 HD front/Hayes HMX-2 CX rear brakes, Tektro Jr "V" levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 24" wheels · Rims: Sun Rims Ditch Witch, 36-hole · Hubs: Aluminum, nutted · Front tire: 24 x 2.30" Specialized Roller
Controls and contact points
Archived: Headset: 1 1/8" threadless Tank MX · Handlebar: Aluminum · Stem: TruVativ Husselfelt · Seatpost: Aluminum micro-adjust, 30.9mm diameter · Saddle: Specialized Jumping · Pedals: Aluminum platform
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 | Marzocchi MZ Comp, 100mm |
| Fork Material | Aluminum/magnesium, dual crown |
| Rear Shock | Coil-over, damped, 125mm |
Drivetrain
| Component Group | Downhill Mix |
|---|---|
| Shifters | Shimano Alivio |
| Front Derailleur | N/A |
| Rear Derailleur | Shimano Alivio |
| Crankset | TruVativ Hussefelt, 38 teeth |
| Bottom Bracket | TruVativ Hussefelt, 118mm spindle |
| BB Shell Width | 73mm English |
| Rear Cogs | 8-speed, 11 - 32 teeth |
| Chain | Shimano CN-IG31, 1/2 x 3/32" |
| Pedals | Aluminum platform |
Brakes
| Brakes | Hayes HMX-2 HD front/Hayes HMX-2 CX rear brakes, Tektro Jr "V" levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Tank MX |
|---|---|
| Handlebar | Aluminum |
| Handlebar Extensions | N/A |
| Stem | TruVativ Husselfelt |
| Saddle | Specialized Jumping |
| Seatpost | Aluminum micro-adjust, 30.9mm diameter |
Wheels & Tires
| Hubs | Aluminum, nutted |
|---|---|
| Rims | Sun Rims Ditch Witch, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 24 x 2.30" Specialized Roller |
| Wheel Size | 24" wheels |
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




