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GT Sensor 4.0 Bike - 2011

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GT Sensor 4.0 full-suspension mountain bike delivers agility, responsiveness and efficiency along with 120mm of travel and a slackened geometry for supreme trail performance.

  • Lightweight 6061 hydroformed aluminum frame uses Independent Drive design, which allows rear suspension to move independently of bottom bracket for a fully active rear end
  • The Independent Drive system also smooths out pedaling on rough trails and minimizes suspension-induced feedback
  • Suntour Raidon LOD Air suspension fork offers up 120mm of air sprung travel with rebound damping adjustment and convenient lockout
  • X-Fusion 02 R rear shock provides exceptional bump absorption and traction control; rebound is easily tunable for a custom ride
  • Shimano Alivio shifters and derailleurs are fast and reliable to quickly guide you through the 27 gear combinations
  • Tektro Draco hydraulic disc brakes provide reliable, powerful speed management with a 180mm rotor up front and a 160mm rotor in the back
  • Alex TD24 rims are outfitted with Maxxis Mobster tires—26x2.35 in. front, 26x2.10 in. rear
  • Specs on the GT Sensor 4.0 full-suspension mountain bike are subject to change

After its initial break-in period you might notice your bicycle performing less responsively than the day you brought it home. Not to worry, this is typical of all new bicycles and simply reflects that cables have stretched or their housings have seated themselves into final position. To keep running at peak performance, all REI bicycles come with a FREE warranty tune-up, which should be accomplished between the first 100-200 miles of riding or after the first two months if you're accumulating miles less quickly. Contact your nearest REI bike shop for details and an appointment for this important service.


Item 812639


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REI Store Pickup Only
GT bikes purchased on must be shipped to and picked up at REI stores which are authorized GT dealers. The bikes are fully assembled and the shipping is free!

We cannot ship GT bikes to your home or other addresses.

See the current list of REI stores which are authorized GT dealers.

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GT Sensor 4.0 Bike - 2011 Specs
Best use
Mountain biking
Mountain bike
6061 aluminun
Full suspension
Suntour Raidon LOD Air, 120mm of travel
FSA Dyna Drive, 44/32/22
Shimano BB-UN26
Shimano Alivio
Shimano Alivio
Shimano Alivio
Shimano CS-HG30, 11-34, 9-speed
Disc brake
Tektro Draco hydraulic disc
Tektro Draco
Alex TD24
All Terra Alloy Disc, 32h
All Terra Alloy Disc, 32h
26 inches
Maxxis Mobster, 26x2.35
Riser bar
All Terra
All Terra
All Terra
WTB Pure-V
GT Slim
HG 53
How we measure bike weight
Bike style
Bike frame material
Bike suspension
Bottom bracket
Front derailleur
Rear derailleur
Rear cogs
Number of gears
Brake type
Brake levers
Front hub
Rear hub
Wheel size
Handlebar shape
Seat post
Bike weight

GT Sensor 4.0 Bike - 2011

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