Uses front tire 26×2.1; rear size isn’t listed.
Velopedia Bicycle Archive
2011 Diamondback Response
Original specifications: Shimano Altus · 7-speed rear derailleur · 26" wheels.
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At a glance
Archive #23470- Model year
- 2011
- Category
- Mountain
- Sizes
- SM (16"), MD (18"), LG (20"), XL (22")
- Colors
- Black/red
- In this record
- 25 specifications · archived image
Model history 16 other years
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Identification clues
2011 archived details
- Published colors
- Black/red
- Frame
- 6061-T6 aluminum
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build6061-T6 aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | Aluminum |
|---|---|
| Frame Material | 6061-T6 aluminum |
| Fork | SR Suntour XCT, 100mm travel |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano EF-51 |
| Front Derailleur | Shimano TX50, 34.9mm top swing dual pull |
| Rear Derailleur | Shimano Altus |
| Crankset | SR Suntour XCT, 22/32/42t teeth |
| Bottom Bracket | Cartridge Type |
| Cassette | Shimano HG20 |
| Rear Cogs | 7-speed, 12 - 28 teeth |
| Chain | KMC Z51 |
| Pedals | DB Toe Clip Compatible Platform |
Brakes
| Brakes | Alloy linear brakes, ProMax 3-Finger Lever levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" Zero Stack |
|---|---|
| Handlebar | DB SL318b OS Mid Rise |
| Handlebar Extensions | Not included |
| Stem | DB SL318s 31.8 |
| Saddle | DB All Mountain Saddle |
| Seatpost | DBSL309p Alloy micro-adjust, 30.9mm diameter |
Wheels & Tires
| Hubs | MX260H Alloy |
|---|---|
| Rims | Weinmann MX260D Doublewall, 32-hole |
| Spokes | Stainless Steel stainless, 14ga. (2.0mm) |
| Front Tire | 26 x 2.1'' Kenda Klaw XT |
| 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
30.9mm diameter

Race Face Ride XC Seatpost Black, 30.9x375mm
Replacement option
More parts (2)Fewer parts
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'' Kenda Klaw XT
- Drivetrain
- 7-speed
- Seatpost diameter
- 30.9 mm
- Bottom bracket / shell
- Cartridge Type
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: Aluminum · Fork: SR Suntour XCT, 100mm travel
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour XCT, 100mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano EF-51 · Front derailleur: Shimano TX50, 34.9mm top swing dual pull · Rear derailleur: Shimano Altus · Crankset: SR Suntour XCT, 22/32/42t teeth · Bottom bracket: Cartridge Type · Cassette: Shimano HG20 · Rear cogs: 7-speed, 12 - 28 teeth · Chain: KMC Z51
Brakes
Inspect the brakes →Archived: Brakes: Alloy linear brakes, ProMax 3-Finger Lever levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Weinmann MX260D Doublewall, 32-hole · Hubs: MX260H Alloy · Front tire: 26 x 2.1'' Kenda Klaw XT
Controls and contact points
Archived: Headset: 1 1/8" Zero Stack · Handlebar: DB SL318b OS Mid Rise · Stem: DB SL318s 31.8 · Seatpost: DBSL309p Alloy micro-adjust, 30.9mm diameter · Saddle: DB All Mountain Saddle · Pedals: DB Toe Clip Compatible Platform
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




