Uses front tire 26×2.1; rear size isn’t listed.
Velopedia Bicycle Archive
2011 Breezer Thunder Comp
Original specifications: Shimano SLX drivetrain · 26" wheels · 27.71 lb published weight.
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No archive photo is available for this record.
At a glance
Archive #23144- Model year
- 2011
- Category
- Mountain
- Sizes
- XS, S, M, L, XL
- Colors
- Blue/White
- Weight
- 27.71 lb
- In this record
- 25 specifications
Model history 1 other year
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Identification clues
2011 archived details
- Published colors
- Blue/White
- Frame
- Alloy
- Original equipment
- Shimano SLX
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildAlloy · Shimano SLX · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Alloy |
| Fork | SRAM Recon Silver TK Coil, 100mm travel |
| Fork Material | Single |
Drivetrain
| Component Group | Shimano SLX |
|---|---|
| Shifters | Shimano SLX |
| Front Derailleur | Shimano SLX 661-10D, 34.9mm bottom swing top pull |
| Rear Derailleur | Shimano SLX 663 SGS shadow |
| Crankset | Shimano M552, 24/32/42 teeth |
| Bottom Bracket | Shimano External |
| Cassette | Shimano SLX |
| Rear Cogs | 10-speed, 11 - 34 teeth |
| Chain | Shimano HG74 |
| Pedals | Not included |
Brakes
| Brakes | Shimano BR-M575 brakes, Shimano BL-M575 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless VP |
|---|---|
| Handlebar | Oval M-600 7050 flat bar |
| Handlebar Extensions | Not included |
| Stem | Oval M-600 MTB alloy |
| Saddle | Velo VL-1205 w/steel rails |
| Seatpost | Oval M-600 TBT MTB Post, 27.2mm diameter |
Wheels & Tires
| Hubs | Shimano M595 |
|---|---|
| Rims | Mavic XM317, 32-hole |
| Front Tire | 26 x 2.1" WTB Wolverine Comp |
| 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 = 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
27.2mm diameter

Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
More parts (7)Fewer parts
Shimano BL-M575 levers
24/32/42 teeth
34.9mm bottom swing top pull
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 2.1" WTB Wolverine Comp
- Drivetrain
- 10-speed
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- Shimano External
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: SRAM Recon Silver TK Coil, 100mm travel · Single
Suspension
Evaluate the suspension →Archived: Fork: SRAM Recon Silver TK Coil, 100mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Shimano SLX · Shifters: Shimano SLX · Front derailleur: Shimano SLX 661-10D, 34.9mm bottom swing top pull · Rear derailleur: Shimano SLX 663 SGS shadow · Crankset: Shimano M552, 24/32/42 teeth · Bottom bracket: Shimano External · Cassette: Shimano SLX · Rear cogs: 10-speed, 11 - 34 teeth · Chain: Shimano HG74
Brakes
Inspect the brakes →Archived: Brakes: Shimano BR-M575 brakes, Shimano BL-M575 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Mavic XM317, 32-hole · Hubs: Shimano M595 · Front tire: 26 x 2.1" WTB Wolverine Comp
Controls and contact points
Archived: Headset: 1 1/8" threadless VP · Handlebar: Oval M-600 7050 flat bar · Stem: Oval M-600 MTB alloy · Seatpost: Oval M-600 TBT MTB Post, 27.2mm diameter · Saddle: Velo VL-1205 w/steel rails · Pedals: Not included
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