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.

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Original build6061-T6 aluminum · Mountain Mix · 26" wheels

Historical catalog variants

Archived sizes and colors

4 item records

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

SM (16")MD (18")LG (20")XL (22")

Published colors

Black/Red
View 4 archived size/color combinations
SizeColor
SM (16")Black/Red
MD (18")Black/Red
LG (20")Black/Red
XL (22")Black/Red

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

Frameset

Frame ConstructionAluminum
Frame Material6061-T6 aluminum
ForkSR Suntour XCT, 100mm travel

Drivetrain

Component GroupMountain Mix
ShiftersShimano EF-51
Front DerailleurShimano TX50, 34.9mm top swing dual pull
Rear DerailleurShimano Altus
CranksetSR Suntour XCT, 22/32/42t teeth
Bottom BracketCartridge Type
CassetteShimano HG20
Rear Cogs7-speed, 12 - 28 teeth
ChainKMC Z51
PedalsDB Toe Clip Compatible Platform

Brakes

BrakesAlloy linear brakes, ProMax 3-Finger Lever levers

Cockpit & Contact Points

Headset1 1/8" Zero Stack
HandlebarDB SL318b OS Mid Rise
Handlebar ExtensionsNot included
StemDB SL318s 31.8
SaddleDB All Mountain Saddle
SeatpostDBSL309p Alloy micro-adjust, 30.9mm diameter

Wheels & Tires

HubsMX260H Alloy
RimsWeinmann MX260D Doublewall, 32-hole
SpokesStainless Steel stainless, 14ga. (2.0mm)
Front Tire26 x 2.1'' Kenda Klaw XT
Wheel Size26" wheels

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes42/32/22T · 12–28T · 7-speed
Lowest0.79:1 Highest3.50:1 Total range445%
Estimated speed At 90 RPM Lowest gear5.5 mph Highest gear24.6 mph

Uses front tire 26×2.1; rear size isn’t listed.

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.

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Try your current gearingChanged tires or gears? Calculate your setup.

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Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Seatpost · Original
DBSL309p Alloy micro-adjust

30.9mm diameter

Retailer offers
Chain · Original
KMC Z51
Cassette · Original
Shimano HG20
More parts (2)Fewer parts
Front tire · Original
26 x 2.1'' Kenda Klaw XT
Rear derailleur · Original
Shimano Altus

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
0 of 11 checked Progress stays in this browser for this record.

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 →

Archived: Frame: Aluminum · Fork: SR Suntour XCT, 100mm travel

Archived: Fork: SR Suntour XCT, 100mm travel

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

Archived: Brakes: Alloy linear brakes, ProMax 3-Finger Lever levers

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.

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