Lowest1.20:1
Highest4.33:1
Total range361%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×26; rear size isn’t listed.
Velopedia Bicycle Archive
2003 K2 Mach 1
Original specifications: Shimano Sora · 8-speed · mechanical rear derailleur · 700c wheels.
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At a glance
Archive #38786- Model year
- 2003
- Category
- Road
- Original MSRP
- $520.00
- Sizes
- XS, S, M, L
- Colors
- Green/Pearl White
- In this record
- 27 specifications · archived image · original MSRP
Original build6000 aluminum · Road Mix · 700c wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 6000 aluminum |
| Fork | K2 chromoly |
| Fork Material | Chromoly, unicrown crown |
Drivetrain
| Component Group | Road Mix |
|---|---|
| Shifters | Shimano Sora STI Dual Control |
| Front Derailleur | Shimano Sora |
| Rear Derailleur | Shimano Sora |
| Crankset | TruVativ Elita, 30/42/52 teeth |
| Bottom Bracket | Cartridge |
| BB Shell Width | 68mm English |
| Rear Cogs | 8-speed, 12 - 25 teeth |
| Chain | KMC IG-31, 1/2 x 3/32" |
| Pedals | Resin body, aluminum cage w/clips & straps |
Brakes
| Brakes | Tektro dual pivot brakes, Shimano Sora STI Dual Control levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" aluminum threadless |
|---|---|
| Handlebar | Ritchey Biomax |
| Handlebar Extensions | Not included |
| Stem | Aluminum, adjustable |
| Saddle | K2 Road |
| Seatpost | Aluminum, suspension |
Wheels & Tires
| Hubs | Ritchey Pro Road |
|---|---|
| Rims | Ritchey Pro Aero, 32-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 26c Kenda |
| Wheel Size | 700c 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
700 x 26c Kenda
Replacement search: 700cx26 bicycle tire Before ordering: Check rim type and tire clearance.
Shimano Sora
Shimano Sora
More parts (4)Fewer parts
Shimano Sora STI Dual Control
Ritchey Biomax
Ritchey Pro Aero
32-hole
Ritchey Pro Road
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
- 700 x 26c Kenda
- Drivetrain
- 8-speed
- Bottom bracket / shell
- Cartridge · 68mm English
Equipment inspection checks 10 checks based on 5 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: K2 chromoly · Chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Road Mix · Shifters: Shimano Sora STI Dual Control · Front derailleur: Shimano Sora · Rear derailleur: Shimano Sora · Crankset: TruVativ Elita, 30/42/52 teeth · Bottom bracket: Cartridge · Rear cogs: 8-speed, 12 - 25 teeth · Chain: KMC IG-31, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Tektro dual pivot brakes, Shimano Sora STI Dual Control levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Ritchey Pro Aero, 32-hole · Hubs: Ritchey Pro Road · Front tire: 700 x 26c Kenda
Controls and contact points
Archived: Headset: 1 1/8" aluminum threadless · Handlebar: Ritchey Biomax · Stem: Aluminum, adjustable · Seatpost: Aluminum, suspension · Saddle: K2 Road · Pedals: Resin body, aluminum cage w/clips & straps
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.