Lowest0.88:1
Highest4.36:1
Total range499%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 26×1.9; rear size isn’t listed.
Velopedia Bicycle Archive
2007 Jamis Explorer 3.0
Original specifications: Shimano Alivio · 8-speed · mechanical rear derailleur · 26" wheels · 35.75 lb published weight.
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At a glance
Archive #16518- Model year
- 2007
- Category
- City & Commuter
- Original MSRP
- $500.00
- Sizes
- 13.5”, 15.5”, 18”, 21”
- Colors
- Metallic Black/Dark Silver
- Weight
- 35.75 lb
- In this record
- 26 specifications · archived image · original MSRP
Model history 5 other years
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Identification clues
2007 archived details
- Published colors
- Metallic Black/Dark Silver
- Frame
- 6061 Aluminum
- Original equipment
- Comfort Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build6061 Aluminum · Comfort Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 6061 Aluminum |
| Fork | SR Suntour XCM suspension, 80mm |
| Fork Material | Steel/aluminum, single crown |
Drivetrain
| Component Group | Comfort Mix |
|---|---|
| Shifters | Shimano ST-EF50 EZ-Fire Plus |
| Front Derailleur | SR XC208, 31.8mm clamp |
| Rear Derailleur | Shimano Alivio |
| Crankset | RPM alloy c, 28/38/48 teeth |
| Bottom Bracket | Sealed cartridge, 113mm spindle |
| BB Shell Width | 68mm |
| Rear Cogs | 8-speed, 11 - 32 teeth |
| Chain | KMC HG-40 |
| Pedals | Comfort platform |
Brakes
| Brakes | Tektro IO brakes, Shimano alloy levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threaded ATB sealed |
|---|---|
| Handlebar | Hi-rise comfort |
| Handlebar Extensions | Not included |
| Stem | Jamis alloy |
| Saddle | Jamis Comfort |
| Seatpost | Suspension, alloy micro-adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Formula alloy sealed QR |
|---|---|
| Rims | Front: Weinmann ZAC19, Rear: Weinmann Zac 19, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Front Tire | 26 x 1.90" Jamis Sport Comfort |
| Wheel Size | 26" wheels |
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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
KMC HG-40
Retailer offers
SRAM PC-830 Chain One Color, 8 Speed
Replacement option
Suspension
alloy micro-adjust, 27.2mm diameter
Retailer offers
Cane Creek Thudbuster ST Seatpost Black, 27.2mm
Replacement option
More parts (3)Fewer parts
26 x 1.90" Jamis Sport Comfort
Replacement search: 26x1.9 bicycle tire Before ordering: Check rim type and tire clearance.
Shimano Alivio
Formula alloy sealed QR
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 1.90" Jamis Sport Comfort
- Drivetrain
- 8-speed
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- Sealed cartridge, 113mm spindle · 68mm
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: SR Suntour XCM suspension, 80mm · Steel/aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour XCM suspension, 80mm
Drivetrain
Check drivetrain wear →Archived: Group: Comfort Mix · Shifters: Shimano ST-EF50 EZ-Fire Plus · Front derailleur: SR XC208, 31.8mm clamp · Rear derailleur: Shimano Alivio · Crankset: RPM alloy c, 28/38/48 teeth · Bottom bracket: Sealed cartridge, 113mm spindle · Rear cogs: 8-speed, 11 - 32 teeth · Chain: KMC HG-40
Brakes
Inspect the brakes →Archived: Brakes: Tektro IO brakes, Shimano alloy levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Front: Weinmann ZAC19, Rear: Weinmann Zac 19, 36-hole · Hubs: Formula alloy sealed QR · Front tire: 26 x 1.90" Jamis Sport Comfort
Controls and contact points
Archived: Headset: 1 1/8" threaded ATB sealed · Handlebar: Hi-rise comfort · Stem: Jamis alloy · Seatpost: Suspension, alloy micro-adjust, 27.2mm diameter · Saddle: Jamis Comfort · Pedals: Comfort platform
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.