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GT Avalanche Sport

GT Avalanche Sport
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GT's Avalanche Sport offers high-end geometry and performance with a wallet-friendly price tag. Its aluminum frame and suspension fork keep you on the straight and narrow while soaking up the bumps dotting your path. When the trail gets hilly, you’ve got a huge range of gears—27 of them to be exact—that’ll take you wherever you want to go with the reliable functionality you expect from Shimano. The Avalanche Sport also comes with Shimano hydraulic disc brakes for relentless stopping power, even on long downhill sections when you need to be able to trust your brakes! GT and All Terra kick in handlebar, stem, grips, and saddle to ensure you’re comfortably in control, making it an easy choice to get out and ride.


Frame 6061 T6 aluminum Triple Triangle, replaceable derailleur hanger, zerostack tapered 1 1/8-1.5 head tube, 27.5/29 design
Fork SR Suntour XCM-HLO w/ 100mm travel, steel stanchions, aluminum legs, post mount disc brake, hydraulic lockout
Headset Integrated sealed bearing, 1-1/8 upper + 1.5 lower
Rims/Wheels All Terra double wall, disc specific
Hubs Alloy disc
Spokes 14g stainless
Tires All Terra Cypher, 30tpi
X-Small–Small: 27.5 x 2.30
Med–X-Large: 29 x 2.30
Crankset All Terra V-401
Chainrings 44/32/22
Bottom Bracket VP cartridge sealed
Chain KMC Z99
Front Derailleur Shimano Acera, FD-M370
Rear Derailleur Shimano, Alivio, RD-M4000
Cassette/Rear Cogs Sunrace CS-M90, 11-34t, 9-speed
Shifters Shimano SL-M2000
Handlebars 6061 aluminum riser, 680mm width, 12mm rise, 31.8mm clamp, double butted
Tape/Grips GT Statement
Stem All Terra 1 1/8" threadless, 4-bolt w/ CNC face plate, 10° rise for 27.5; 5° rise for 29, 31.8mm clamp
Brake Levers Shimano
Brakes Shimano BR-M315 hydraulic disc, 160mm rotors
Pedals GT Slim Line flat nylon
Saddle All Terra MTB
Seat Post All Terra alloy micro-adjust, 30.9mm

* Subject to change without notice.

Part Numbers

Option UPC MPN
Black / X-Small / 27.5-inch 038675127739 G27428M10XS
Black / Small / 27.5-inch 038675127746 G27428M10S7
Black / Medium / 29-inch 038675127784 G27428M10MD
Black / Large / 29-inch 038675127791 G27428M10LG
Black / X-Large / 29-inch 038675127807 G27428M10XL