Velopedia Bicycle Archive
2005 Specialized Bighit Grom SPEC
Original specifications: Shimano Alivio · 8-speed · mechanical rear derailleur · 24" wheels.
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At a glance
- Model year
- 2005
- Category
- Mountain
- Original MSRP
- $900.00
- Sizes
- Short
- Colors
- Red
- In this record
- 26 specifications · archived image · original MSRP
- Archive ID
- 10589
Original buildA1 Premium aluminum · Downhill Mix · 24" wheels
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 |
| 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 |
| 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 |
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

SRAM PC-850 Chain One Color, 8 Speed
8 Speed
Replacement option · verify fit
More parts (3)

ENVE Twin Bolt Seatpost - Zero Offset UD Carbon, 30.9x400mm
30.9x400mm
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: 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 →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.





