
Velopedia Bicycle Archive
2011 Jamis Explorer 2
Original manufacturer specifications including Comfort Mix drivetrain, 26" wheels, M: 32.75 lbs F: 33.00 lbs published weight.
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What Velopedia knows
- Model year
- 2011
- Category
- City & Commuter
- Original MSRP
- $400.00
- Sizes
- M: 13, 15, 18, 21" W: 14, 17"
- Colors
- Gloss black/stainless, Victory Blue/Pearl White, Celery/Pearl White
- Weight
- M: 32.75 lbs F: 33.00 lbs
- Record coverage
- 32 preserved details · archived image · original MSRP
- Archive ID
- 23804
Model history 3 other years
Frameset
| Frame Construction | Aluminum |
|---|---|
| Frame Material | 6061 Tig-welded aluminum |
| Fork | RST 191-T |
| Rear Shock | N/A |
Drivetrain
| Component Group | Comfort Mix |
|---|---|
| Shifters | Shimano Revo Shift RS-35 |
| Front Derailleur | Shimano M191, Top Swing/Dual Pull 31.8mm |
| Rear Derailleur | Shimano Altus M310 |
| Crankset | Forged Alloy, 48/38/28t teeth |
| Bottom Bracket | Sealed cartridge, 110.5mm spindle |
| BB Shell Width | 68mm |
| Cassette | Shimano freewheel |
| Rear Cogs | 7-speed, 14 - 34 teeth |
| Chain | KMC UG-51 |
| Pedals | Comfort Platform |
Brakes
| Brakes | Tektro forged alloy brakes, Tektro Tenera levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" Threaded |
|---|---|
| Handlebar | Comfort Hi-Rise |
| Handlebar Extensions | Not included |
| Stem | Jamis alloy adjustable |
| Saddle | Jamis Comfort |
| Seatpost | Alloy Micro Adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Formula alloy |
|---|---|
| Rims | Alex DC-25, 36-hole |
| Spokes | Stainless Steel stainless, 14ga. (2.0mm) |
| Front Tire | 26 x 1.95" Jamis Sport Comfort |
| Wheel Size | 26" wheels |
Parts & serviceability
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Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 7-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2011 Jamis Explorer 2 · Comfort/commuter · Published sizes: M: 13, 15, 18, 21" W: 14, 17"
Frame and fork
Inspect the frame and fork →Archived: Frame: Aluminum · Fork: RST 191-T
Drivetrain
Check drivetrain wear →Archived: Group: Comfort Mix · Shifters: Shimano Revo Shift RS-35 · Front derailleur: Shimano M191, Top Swing/Dual Pull 31.8mm · Rear derailleur: Shimano Altus M310 · Crankset: Forged Alloy, 48/38/28t teeth · Bottom bracket: Sealed cartridge, 110.5mm spindle · Cassette: Shimano freewheel · Rear cogs: 7-speed, 14 - 34 teeth · Chain: KMC UG-51
Brakes
Inspect the brakes →Archived: Brakes: Tektro forged alloy brakes, Tektro Tenera levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alex DC-25, 36-hole · Hubs: Formula alloy · Front tire: 26 x 1.95" Jamis Sport Comfort
Controls and contact points
Archived: Headset: 1 1/8" Threaded · Handlebar: Comfort Hi-Rise · Stem: Jamis alloy adjustable · Seatpost: Alloy Micro Adjust, 27.2mm diameter · Saddle: Jamis Comfort · Pedals: Comfort Platform
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
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Current market
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




