Lowest1.00:1
Highest3.43:1
Total range343%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 24×2.25; rear size isn’t listed.
Velopedia Bicycle Archive
2004 KHS T-Rex
Original specifications: Shimano Tourney · 7-speed · mechanical rear derailleur · 24" wheels · 29.5 lb published weight.
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At a glance
Archive #10024- Model year
- 2004
- Category
- Kids
- Original MSRP
- $269.00
- Sizes
- Boys, girls
- Colors
- Silver/Red, Silver/Black, Silver/Berry
- Weight
- 29.5 lb
- In this record
- 27 specifications · archived image · original MSRP
Model history 11 other years
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Identification clues
2004 archived details
- Published colors
- Silver/Red, Silver/Black, Silver/Berry
- Frame
- Hi-tensile steel
- Original equipment
- Juvenile Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildHi-tensile steel · Juvenile Mix · 24" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Hi-tensile steel |
| Fork | Mozo M-30, 65mm travel |
| Fork Material | Aluminum/steel, single crown |
Drivetrain
| Component Group | Juvenile Mix |
|---|---|
| Shifters | SEC Twistshift |
| Front Derailleur | Shimano Tourney TY-22, bottom-pull/clamp-on |
| Rear Derailleur | Shimano Tourney TY-22 |
| Crankset | Shimano Tourney, 28/38/48 teeth |
| Bottom Bracket | VP-B33 cartridge |
| BB Shell Width | 68mm English |
| Rear Cogs | 7-speed, 14 - 28 teeth |
| Chain | KMC Z51, 1/2 x 3/32" |
| Pedals | Platform, resin |
Brakes
| Brakes | Aluminum linear-pull brakes, aluminum linear-pull levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" steel |
|---|---|
| Handlebar | Steel |
| Handlebar Extensions | Not included |
| Stem | Steel |
| Saddle | KHS Padded |
| Seatpost | Aluminum |
Wheels & Tires
| Hubs | Formula |
|---|---|
| Rims | Aluminum, 32-hole |
| Spokes | UCP, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 24 X 2.25" KHS MTB |
| Wheel Size | 24" wheels |
No specifications match. Try a component name or clear your search.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
24 x 2.25" KHS MTB
Replacement search: 24x2.25 bicycle tire Before ordering: Check rim type and tire clearance.
Aluminum linear-pull brakes
aluminum linear-pull levers
More parts (2)Fewer parts
Shimano Tourney
28/38/48 teeth
Shimano Tourney TY-22
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- 24 x 2.25" KHS MTB
- Drivetrain
- 7-speed
- Bottom bracket / shell
- VP-B33 cartridge · 68mm English
Equipment inspection checks 11 checks based on 6 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Mozo M-30, 65mm travel · Aluminum/steel, single crown
Suspension
Evaluate the suspension →Archived: Fork: Mozo M-30, 65mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Juvenile Mix · Shifters: SEC Twistshift · Front derailleur: Shimano Tourney TY-22, bottom-pull/clamp-on · Rear derailleur: Shimano Tourney TY-22 · Crankset: Shimano Tourney, 28/38/48 teeth · Bottom bracket: VP-B33 cartridge · Rear cogs: 7-speed, 14 - 28 teeth · Chain: KMC Z51, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Aluminum linear-pull brakes, aluminum linear-pull levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 24" wheels · Rims: Aluminum, 32-hole · Hubs: Formula · Front tire: 24 x 2.25" KHS MTB
Controls and contact points
Archived: Headset: 1 1/8" steel · Handlebar: Steel · Stem: Steel · Seatpost: Aluminum · Saddle: KHS Padded · Pedals: Platform, resin
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.