Lowest0.94:1
Highest4.82:1
Total range514%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 20×1.5; rear size isn’t listed.
Velopedia Bicycle Archive
2006 Sun Bicycles EZ-Tadpole CX
Original specifications: SRAM X7 · 9-speed · mechanical rear derailleur · 20" wheels · 47 lb published weight.
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At a glance
Archive #94071- Model year
- 2006
- Category
- Recumbent
- Original MSRP
- $1,495.00
- Sizes
- 36-46" X-Seam
- Colors
- Green/Black
- Weight
- 47 lb
- In this record
- 25 specifications · archived image · original MSRP
Model history 1 other year
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Identification clues
2006 archived details
- Published colors
- Green/Black
- Frame
- Chromoly
- Original equipment
- Recumbent Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildChromoly · Recumbent Mix · 20" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Chromoly |
| Fork | Sun |
| Fork Material | High-tensile steel, unicrown crown |
Drivetrain
| Component Group | Recumbent Mix |
|---|---|
| Shifters | SRAM X-7 |
| Front Derailleur | Shimano FD-2203, dual-pull/clamp-on 31.8mm |
| Rear Derailleur | SRAM X.7 |
| Crankset | FSA, 30/42/53 teeth |
| Bottom Bracket | Tien Hsin BB-7420ST, 117.5mm spindle |
| BB Shell Width | 68mm American |
| Rear Cogs | 9-speed, 11 - 32 teeth |
| Chain | KMC Z9000, 1/2 x 3/32" |
| Pedals | Wellgo |
Brakes
| Brakes | Quad QMD-5 mechanical disc brakes, Promax alloy levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threaded Tien Hsin |
|---|---|
| Handlebar | Sun USS |
| Stem | Aluminum threadless |
| Saddle | Sun Alloy Cool Back |
Wheels & Tires
| Hubs | Front: Sun Tadpole Aluminum, Rear: Promax DB-910R |
|---|---|
| Rims | Alex DA-16, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 20 x 1.50" Kenda Kwest |
| Wheel Size | 20" 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
SRAM X.7
More parts (1)Fewer parts
Alex DA-16
36-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
- 20 x 1.50" Kenda Kwest
- Drivetrain
- 9-speed
- Bottom bracket / shell
- Tien Hsin BB-7420ST, 117.5mm spindle · 68mm American
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: Sun · High-tensile steel, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Recumbent Mix · Shifters: SRAM X-7 · Front derailleur: Shimano FD-2203, dual-pull/clamp-on 31.8mm · Rear derailleur: SRAM X.7 · Crankset: FSA, 30/42/53 teeth · Bottom bracket: Tien Hsin BB-7420ST, 117.5mm spindle · Rear cogs: 9-speed, 11 - 32 teeth · Chain: KMC Z9000, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Quad QMD-5 mechanical disc brakes, Promax alloy levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" wheels · Rims: Alex DA-16, 36-hole · Hubs: Front: Sun Tadpole Aluminum, Rear: Promax DB-910R · Front tire: 20 x 1.50" Kenda Kwest
Controls and contact points
Archived: Headset: 1 1/8" threaded Tien Hsin · Handlebar: Sun USS · Stem: Aluminum threadless · Saddle: Sun Alloy Cool Back · Pedals: Wellgo
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.