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2012 GT Sensor 9r Expert

Original specifications.

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At a glance

Archive #2024063
Model year
2012
Category
Mountain
Sizes
M, L, XL
Colors
Black
In this record
19 specifications · archived image
Model history 1 other year

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Identification clues

2012 archived details

Published colors
Black
Frame
hydroformed aluminum

Clues, not proof of model year. Colors vary and components may have been replaced.

Campaign
Original buildhydroformed aluminum

Manufacturer catalog

Published sizes and colors

3 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

MLXL

Published colors

Black

Frameset

Frame Materialhydroformed aluminum
ForkMarzocchi 44 TST2-120mm
Rear ShockFox Shox Float RL

Drivetrain

ShiftersShimano SLX 10spd
Front DerailleurSRAM X7
Rear DerailleurShimano SLX
CranksetSRAM S1000 39/26t
Bottom BracketSRAM GXP
CassetteShimano HG62 10spd 11-36t
ChainKMC X-10
PedalsShimano M505

Brakes

BrakesAvid Elixir 3 180/160mm

Cockpit & Contact Points

HeadsetFSA Integrated
HandlebarAll Terra Double Butted
StemAll Terra 3D
SaddleWTB Silverado
SeatpostAll Terra Microadjust 31.6mm

Wheels & Tires

RimsAlex XD-Lite 32H
Front TireMaxxis Aspen 29x2.1 Kevlar

Gearing

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

All published sizes39/26T · 11–36T · 10-speed
Lowest0.72:1 Highest3.55:1 Total range491%

Speed unavailable: wheel or tire size is missing or unclear.

Add your rear tire size to calculate speed
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 other gearing

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

Your changes apply to this calculation. The archived build stays unchanged.

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
Front tire · Original
Maxxis Aspen 29x2.1 Kevlar
Retailer offers
Seatpost · Original
All Terra Microadjust 31.6mm
Retailer offers
Chain · Original
KMC X-10
More parts (9)Fewer parts
Cassette · Original
Shimano HG62 10spd 11-36t
Bottom bracket · Original
SRAM GXP
Pedals · Original
Shimano M505
Saddle · Original
WTB Silverado
Crankset · Original
SRAM S1000 39/26t
Front derailleur · Original
SRAM X7
Rear derailleur · Original
Shimano SLX
Shifters · Original
Shimano SLX 10spd
Rims · Original
Alex XD-Lite 32H

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
Maxxis Aspen 29x2.1 Kevlar
Drivetrain
10-speed
Seatpost diameter
31.6 mm
Bottom bracket / shell
SRAM GXP
Equipment inspection checks 13 checks based on 6 archived component groups Open equipment checksClose equipment checks
0 of 13 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: hydroformed aluminum · Fork: Marzocchi 44 TST2-120mm

Archived: Fork: Marzocchi 44 TST2-120mm · Rear shock: Fox Shox Float RL

Archived: Shifters: Shimano SLX 10spd · Front derailleur: SRAM X7 · Rear derailleur: Shimano SLX · Crankset: SRAM S1000 39/26t · Bottom bracket: SRAM GXP · Cassette: Shimano HG62 10spd 11-36t · Chain: KMC X-10

Archived: Brakes: Avid Elixir 3 180/160mm

Archived: Rims: Alex XD-Lite 32H · Front tire: Maxxis Aspen 29x2.1 Kevlar

Controls and contact points

Archived: Headset: FSA Integrated · Handlebar: All Terra Double Butted · Stem: All Terra 3D · Seatpost: All Terra Microadjust 31.6mm · Saddle: WTB Silverado · Pedals: Shimano M505

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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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