MountainVerified spec

2021 GT Sensor Sport

Launched at $2,200Lists today at $2,300 (2026-09)

Own a 2021 GT Sensor Sport?

Track its value in your garage, or list it for sale locally in a few taps.

What a used one is worth

New

$1,229

$794 to $1,481

Like new

$1,168

$754 to $1,407

Excellent

$1,106

$714 to $1,333

Good

$922

$595 to $1,111

Fair

$676

$437 to $815

For parts

$369

$238 to $444

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Fork: RockShox Recon Silver RL, 140mm, 15x110 Boost, Maxle Stealth, 42mm Offset
Stem: GT Alloy Stem, 31.8mm Clamp, 45mm Length
Tires: WTB Breakout, 29 x 2.3" DNA CompoundWTB Breakout, 29 x 2.3" DNA Compound
Brakes: Shimano MT200 Hydro Disc, 180/180mm RT10 Rotors
Saddle: WTB Silverado Sport, Steel rails
Wheels: WTB STX i25 TCS, 32h, Tubeless Ready; Shimano MT400, 15x110mm / Shimano MT400, 12x148mm
Cassette: Shimano Deore M5100 11-51T
Crankset: Shimano FCM510, 32t
Seatpost: TranzX Dropper, Internal Routing, 31.6
Shifters: Shimano Deore M5100, 11-speed
Handlebar: GT Alloy Riser Bar, 30mm Rise, 780mm Wide, 5° Rise, 8° Back
Rear shock: X-Fusion 02 Pro RL, 185x50mm Trunnion, Rebound and Lockout
Travel rear mm: 130
Rear derailleur: Shimano Deore M5100 SGS
Travel front mm: 140

LG: Reach mm: 475; Stack mm: 633; Chainstay mm: 440; Wheelbase mm: 1234; Head angle deg: 65.5
MD: Reach mm: 450; Stack mm: 624; Chainstay mm: 440; Wheelbase mm: 1205; Head angle deg: 65.5
SM: Reach mm: 425; Stack mm: 615; Chainstay mm: 440; Wheelbase mm: 1176; Head angle deg: 65.5
XL: Reach mm: 510; Stack mm: 642; Chainstay mm: 440; Wheelbase mm: 1273; Head angle deg: 65.5

GT model code G24501M. Model year from the product code suffix on GT's page (_21). Launch price: GT US page captured 2021-01, inside the model year.

No Sensor listed right now. Save a search in the app and get told when one appears.