Lowest0.69:1
Highest4.00:1
Total range582%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 26×2.1; rear size isn’t listed.
Velopedia Bicycle Archive
2004 Diamondback Topanga EX
Original specifications: Shimano Deore · 9-speed · mechanical rear derailleur · 26" wheels.
Planning to sell? Draft your listing
At a glance
Archive #31733- Model year
- 2004
- Category
- Mountain
- Original MSRP
- $460.00
- Sizes
- 14", 16", 18", 20", 22"
- Colors
- Gloss Silver/Navy Blue, Satin Black/Nickel
- In this record
- 26 specifications · archived image · original MSRP
Original buildVectra 7005 Aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Vectra 7005 Aluminum |
| Fork | Rock Shox Judy TT, 100mm |
| Fork Material | Aluminum, single crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano Deore RapidFire |
| Front Derailleur | Shimano Alivio, top-pull/clamp-on 31.8mm |
| Rear Derailleur | Shimano Deore |
| Crankset | Shimano FC-MC20L, 22/32/44 teeth |
| Bottom Bracket | Sealed cartridge |
| BB Shell Width | 68mm English |
| Rear Cogs | 9-speed, 11 - 32 teeth |
| Chain | SRAM PC-49, 1/2 X 3/32" |
| Pedals | Atb |
Brakes
| Brakes | Tektro linear-pull brakes, Tektro linear-pull levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" integrated OS Zero Stack |
|---|---|
| Handlebar | ATB Aluminum 30mm rise |
| Handlebar Extensions | Not included |
| Stem | DB Chaos, 4-Bolt |
| Saddle | WTB Speed V |
| Seatpost | Aluminum micro-adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Aluminum |
|---|---|
| Rims | Alex AL-DM18, 32-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Front Tire | 26 x 2.10" WTB VelociRaptor |
| Wheel Size | 26" 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
Aluminum micro-adjust
27.2mm diameter
Retailer offers
Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
More parts (5)Fewer parts
Tektro linear-pull brakes
Tektro linear-pull levers
Shimano FC-MC20L
22/32/44 teeth
Shimano Deore
Shimano Deore RapidFire
Alex AL-DM18
32-hole
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
- 26 x 2.10" WTB VelociRaptor
- Drivetrain
- 9-speed
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- Sealed 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: Rock Shox Judy TT, 100mm · Aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: Rock Shox Judy TT, 100mm
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano Deore RapidFire · Front derailleur: Shimano Alivio, top-pull/clamp-on 31.8mm · Rear derailleur: Shimano Deore · Crankset: Shimano FC-MC20L, 22/32/44 teeth · Bottom bracket: Sealed cartridge · Rear cogs: 9-speed, 11 - 32 teeth · Chain: SRAM PC-49, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Tektro linear-pull brakes, Tektro linear-pull levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alex AL-DM18, 32-hole · Hubs: Aluminum · Front tire: 26 x 2.10" WTB VelociRaptor
Controls and contact points
Archived: Headset: 1 1/8" integrated OS Zero Stack · Handlebar: ATB Aluminum 30mm rise · Stem: DB Chaos, 4-Bolt · Seatpost: Aluminum micro-adjust, 27.2mm diameter · Saddle: WTB Speed V · Pedals: ATB
Have you owned this model?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.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Checking current listings…
Find this bike on eBay
Search eBay US; check the model year, size and installed components. We may earn a commission from purchases.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.