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2021 GT Avalanche Sport

Launched at $725Lists today at $850 (2026-09)

Own a 2021 GT Avalanche Sport?

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

What a used one is worth

New

$405

$262 to $488

Like new

$385

$249 to $464

Excellent

$365

$235 to $439

Good

$304

$196 to $366

Fair

$223

$144 to $268

For parts

$122

$78 to $146

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

Fork: SR Suntour XCT-DS, 100mm, Hydraulic Lockout and Preload adjust, Coil
Stem: GT All Terra, 6061 Alloy, 31.8, 8°
Tires: WTB Ranger Comp, 27.5/29 x 2.25", DNA Compound
Brakes: Tektro M275 Hydro Disc, 160/160mm Rotors
Saddle: GT MTB
Wheels: WTB SX19, 32h; Alloy Disc, QRx100 / Alloy Disc, QRx141
Cassette: Sunrace, 11-36, 9 speed
Crankset: Shimano MT101, 36/22
Seatpost: GT All-Terra Micro Adjust Alloy Seat Post, 30.9mm
Shifters: Shimano Altus, 9-speed
Handlebar: GT All Terra Alloy Riser, 25mm Rise, 8° Sweep, 6° Rise, 720mm Width
Rear derailleur: Shimano Alivio
Travel front mm: 100

GT model code G27401M. Model year from the product code suffix on GT's page (_21). Launch price: GT US page captured 2020-09, inside the model year.

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