How to Choose Mountain Bikes
GTÂ Avalanche Sport Mountain Bike - 2021
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From dirt trails to gravel paths, revel in the ride with the GT Avalanche Sport mountain bike. This hardtail is built for the rider that seeks efficiency, versatility and fun off-road.
Shop similar productsKey Details
Wheel Size
29 inches
Fork Travel
100 millimeters
Number of Gears
18 gear(s)
- Completely redesigned alloy frame is stable and durable
- Floating seatstays provide additional compliance and comfort
- Internal cable routing allows for a clean look; includes dropper post routing (dropper post not included)
- Locking 100 mm front fork transitions smoothly from dirt trails to gravel paths
- Tektro hydraulic disc brakes provide controlled stopping power
- Closeout
- NOTE: Specs and images are subject to change based on component availability
Imported.
This bike comes with Coast to Coast Support, which includes:
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
View all GT Hardtail Mountain Bikes- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 20% off shop services
- Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
| Best Use | Mountain Biking |
|---|---|
| Mountain Bike Style | Trail |
| Frame | GT 6061 T6 aluminum Triple Triangle with floating seatstays; Boost 141 forged dropouts; zero stack tapered 1-1/8 to 1-1/2 in. head tube |
| Bike Suspension | Front Suspension |
| Fork | SR Suntour XCT-DS, 100 mm; hydraulic lockout and preload adjust; coil |
| Fork Travel | 100 millimeters |
| Crankset | Prowheel alloy, 36/22T |
| Bottom Bracket | Cartridge, square taper |
| Shifters | 39-29, 2 x 9-speed |
| Front Derailleur | Shimano Altus |
| Rear Derailleur | microSHIFT RD-M36L |
| Rear Cogs | 11-36T |
| Number of Gears | 18 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Tektro M275 hydro disc, 160/160 mm rotors |
| Brake Levers | Tektro M275 hydro disc |
| Rims | WTB SX19, 32H |
| Front Hub | Alloy disc, 100 mm quick-release |
| Rear Hub | Alloy disc, 141 mm quick-release |
| Wheel Size | 29 inches |
| Tires | WTB Ranger Comp, 29 x 2.25 in., DNA Compound |
| Tire Width | 2.25 inches |
| Handlebar Shape | Riser Bar |
| Handlebar | GT All Terra alloy riser, 25 mm rise, 8 deg. sweep, 6 deg. rise, 720 mm width |
| Stem | GT All Terra, 6061 alloy, 31.8 mm, 8 deg. |
| Seat Post | GT All-Terra Micro Adjust alloy seat post, 30.9 mm |
| Saddle | GT MTB |
| Pedals | GT Slim Line Flat pedal |
| Headset | Semi-integrated, sealed cartridge, tapered |
| Chain | KMC Z9, 9-speed |
| Weight | Unavailable |
| Gender | Unisex |
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Location:Santa Rosa CA
Age:55–64
1 year ago
Good bike for the money
I wouldn’t take this extreme mountain biking, but it fits my needs for some off-road action
Age:55–64
2 years ago
3 years ago