This GT Avalanche Sport 27.5 Hardtail Mountain Bike is no longer available although you may find similar or newer versions below:
The Avalanche Sport 27.5 is often called the little brother to GT's Zaskar, but this doesn't mean it's short on features or performance. It is built around a high-end alloy frame and spec'd with reliable components.
|Number of gears:||27|
|Frame:||6061 T6 Aluminium Frame, triple triangle, replaceable hanger, disc brake mounts, Zerostack tapered Headtube|
|Fork:||SR Suntour XCT-HLO, 100mm Travel, Steel Stanchions, Aluminium Legs, Post Mount Disc Brake, Hydraulic Lockout|
|Steerer:||Tapered 1 1/8 - 1 1/2|
|Bottle Cage Mounts:||Double|
|Wheel Size:||27.5" (650b)|
|Brake Type:||Hydraulic Disc Brake|
|Brakes:||Shimano BR-M315, Hydraulic Disc, 160mm SM-RT26 Rotors|
|Chainset:||All-Terra V-401, 44/32/22T|
|Cassette:||Sunrace CS-M90, 11-34T, 9-Speed|
|Handlebars:||6061 Aluminium riser, 680mm width, 12mm rise, 31.8mm clamp, double butted|
|Bar Tape/Grips:||GT Statement|
|Stem:||All Terra 1 1/8 Threadless, 4-Bolt with CNC face plate, 10-degree rise, 31.8mm clamp|
|Seat Post:||All Terra Alloy Micro-Adjust, 30.9mm|
|Saddle:||All Terra MTB|
|Tyres:||All Terra Cypher, 30 tpi, 27.5x2.10"|
The 6061 T6 Alloy frame also boasts GT’s distinctive and super-tough triple triangle design, which disperses the impact of jumps, drops and sudden shocks throughout the frame. This not only increases the frame’s durability, it helps to improve the handling.
Backing up this high-quality frame is a Shimano Acera/Alivio 3x9 drivetrain, which gives you the gears you need to conquer all terrain types and riding situations. Then when it’s time to scrub your speed, the Shimano hydraulic disc brakes give you all the control you need and in all conditions too.
Rest assured that each bike is fully built, tested and tuned by Wiggle's team of qualified bike mechanics to ensure your bike arrives in perfect condition. Find out which size fits you by clicking the size chart tab.
Note: Manufacturer may reserve the right to change the specification of that listed or shown on this page.
GT Bikes, based in Southern California, has been in the business of making great bikes since 1972 when Gary Turner launched one of the first performance BMX race bikes. Developing world class bikes in conjunction with the world’s best BMX rider such as Greg Hill, Eddie Fiola, Jamie Bestwick, Clive Gosling and Dave Mirra, GT grew into one of the biggest brands. With a BMX heritage and based in California the MTB scene was the perfect addition in the late 80’s . GT used the same model of developing performance bikes with the best riders, pioneering new suspension technology and the use of carbon fibre in MTB frames. Winning numerous World Championships in downhill and cross country racing with legendary riders such Nicholas Vouilloz, Steve Peat and more recently Atherton Racing, with Dan Gee and Rachel Atherton. Hans “No Way” Ray has been one of the figurehead of GT’s longstanding team rider program, setting the record for longest sponsorship deal of 26 years and counting. It hasn’t always been about dirt, in the mid 90’s GT took there carbon technology and build track bikes for the USA Olympic team, the bike was later banned for being too fast. GT latest crop of Enduroad Grade models play perfect testament to the brands heritage across, dirt, road and track.
|XX Small||X Small||Small||Medium||Large||Extra Large|
|Seat Tube - Center to Top||mm||343mm||355mm||380mm||430mm||485mm||540mm|
|Top Tube (Virtual)||mm||553mm||569mm||585mm||610mm||667mm||683mm|
|Head Tube Angle||Degrees||69°||69.5°||69.5°||69.5°||69.5°||69.5°|
|Seat Tube Angle||Degrees||72.7°||72.7°||72.7°||72.7°||72.7°||72.7°|
|Bottom Bracket Height||mm||312mm||312mm||312mm||312mm||312mm||312mm|
|Bottom Bracket Drop||mm||45mm||45mm||45mm||45mm||45mm||45mm|
|Height||cm||148 - 158cm||156 - 167cm||164 - 174cm||172 - 182cm||180 - 190cm||188 - 196cm|
|ft||4′ 10″ - 5′ 2″||5′ 1″ - 5′ 6″||5′ 5″ - 5′ 9″||5′ 8″ - 6′||5′ 11″ - 6′ 3″||6′ 2″ - 6′ 5″|
|Inside Leg||cm||64 - 70cm||68 - 74cm||72 - 78cm||76 - 82cm||80 - 86cm||84 - 89cm|
|inches||25″ - 28″||27″ - 29″||28″ - 31″||30″ - 32″||31″ - 34″||33″ - 35″|
We are sorry, but due to your delivery destination United Kingdom we can not dispatch this item.
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More information on International delivery options
We're so confident that you'll love your new bike from Wiggle, that we'll let you test ride it for a month! If you're not happy with it, just email us to firstname.lastname@example.org and we'll pick it up from you for a full refund. Just make sure you keep the box so it can be re-used to send it back. Read more about our 30-day test ride.
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