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  • Description
  • Reviews (1)
  • Sizing
  • Hardtail MTB Guide
  • Finance
  • Delivery
  • Returns & Warranty
  • Product description

    From flowing singletrack to wide open fire roads. The GT Avalanche Sport is hardtail mountain bike that offers high performance characteristics at an affordable price point.

    The high-end 6061-T6 aluminium alloy frame has been redesigned for 2017 and features similar cross country frame geometry to the Zaskar for a stable and efficient riding position on XC trails. The triple triangle design adds rear end stiffness while the tapered head tube keeps the front-end tracking precisely. 27.5” wheels offer the ideal balance between rapid rolling and nimble handling over rough ground.

    The SR Suntour XCT-HLO fork offers 100mm of suspension travel to take the sting out of the trail and features a hydraulic lock out so you can ride more efficiently on smoother trails.

    The Shimano 3x8 speed drivetrain gives you a wide range of gears for taking on all the varied gradients on your MTB route. The hydraulic disc brakes offer confident stopping power in all weather conditions.

    The GT Avalanche Sport is a rapid hardtail for MTB adventures.

    Key Features:

    • 6061 aluminium alloy frame is light weight and robust
    • SR Suntour XCT-HLO fork offers 100mm of suspension travel
    • Shimano Alivio 3x9 speed drivetrain for a wide gear range
    • Hydraulic disc brakes for all-weather stopping power
    • Sizes: X Small, Small, Medium, Large, X Large
    • Colour: Black
    • The GT Avalanche Sport 27.5 is available with 0% APR finance

    The GT Avalanche Sport 27.5" 2017 Features are:

    Frame: All New 6061 T6 Aluminum Frame, w/ Triple Triangle™, Replaceable Derailleur Hanger, Disc Brake Mounts, and Zerostack tapered Head Tube, 27.5 Design

    Fork: SR Suntour XCT-HLO w/ 100mm Travel, Steel Stanchions, Aluminum Leg, Post Mount Disc Brake, Hydraulic Lockout, QR, For 27.5

    Headset: Integrated seal bearing, 1-1/8” Upper + 1-1/2” Lower

    Bars: 6061 Aluminum Riser, 680mm Width, 12mm Rise, 31.8mm ClampGT Statement

    Stem: All Terra 1 1/8" Threadless, 4-Bolt W/ CNC Face Plate, 10° Rise, 31.8mm Clamp

    Shifters: Shimano, Rapid Fire

    Front Mech: Shimano Altus,

    Rear Mech: Alivio

    Speed: 27

    Chainset: All-Terra V-401, 44/32/22TN/A

    Bottom Bracket: Cartridge Sealed

    Cassette: Sunrace CS-M90, 11-34T, 9-Speed Cassette

    Chain: KMC Z99

    Front Brake: Tektro Hydro Disc, 160mm Rotor

    Rear Brake: Tektro Hydro Disc, 160mm Rotor

    Rims: All Terra Double Wall, 32H 27.5, disc specific

    Front Hub: Alloy Disc QR

    Rear Hub: Alloy Cassette Disc QR

    Tyres: All Terra Cypher 27.5X2.1" Front - All Terra Cypher 27.5X2.1" Rear

    Seatpost: All Terra Alloy Micro-Adjust, 30.9mm

    Pedals: GT Slim Line Flat Pedal

    Occasionally without notice, manufacturers sometimes change product specifications

  • GT Avalanche Sport 27.5" Mountain Bike 2017 - Hardtail MTB Reviews

    Write your own review
    Overall Rating:
    4.5
    out of 5
    4.50
    Build Quality
    5.00
    Performance
    5
    Value For Money
    3.50

    Customer Reviews (1)

    4
    GT Avalanche

    First off, thanks to Tredz for some great customer service, a wonderful buying experience, and delivering the bike before the estimated date. The tools were an unexpected and thoughtful touch. As for the bike: Quality of construction, paint finish, welding and cable routing are top notch. The frame looks and feels like a piece of engineering. It's smooth, stable, nimble, quiet and much faster than my old 26". Especially on climbs. Compared to the old bike's v-brakes, the Tektro hydraulic discs are utterly monstrous: there is always more stopping power available than you will need. That's not to say you lock them up and fall off every time you so much as look at them, because they're also wonderfully predictable, progressive and full of feedback. I grew up with cantilevers; this is my first bike with hydraulics and they're a revelation. The fork is OK ...I bought the bike with the intention of upgrading to a RockShox 30 Gold. Lockout is good for climbs and smooth tarmac, but the rebound is snappy and cannot be adjusted. Tyres fitted were Kenda Slant Six. Fast at higher pressures and very grippy on dry tarmac. Front feels a bit nervous on loose dirt, and not much wet grip over stones and logs. Rims and hubs seem sturdy enough but I'm going to upgrade these too. Shifters and mechs are quick, but can be a bit sticky. Not worried by this as it's a new bike: cables are going to stretch and teeth will deburr with use. It's a solid bike, and in my opinion the best looking at this price point. Great service from Tredz too.

    First off, thanks to Tredz for some great customer service, a wonderful buying experience, and delivering the bike before the estimated date. The tools were an unexpected and thoughtful touch. As for the bike: Quality of construction, paint finish, welding and cable routing are top notch. The frame looks and feels like a piece of engineering. It's smooth, stable, nimble, quiet and much faster than my old 26". Especially on climbs. Compared to the old bike's v-brakes, the Tektro hydraulic discs are utterly monstrous: there is always more stopping power available than you will need. That's not to say you lock them up and fall off every time you so much as look at them, because they're also wonderfully predictable, progressive and full of feedback. I grew up with cantilevers; this is my first bike with hydraulics and they're a revelation. The fork is OK ...I bought the bike with the intention of upgrading to a RockShox 30 Gold. Lockout is good for climbs and smooth tarmac, but the rebound is snappy and cannot be adjusted. Tyres fitted were Kenda Slant Six. Fast at higher pressures and very grippy on dry tarmac. Front feels a bit nervous on loose dirt, and not much wet grip over stones and logs. Rims and hubs seem sturdy enough but I'm going to upgrade these too. Shifters and mechs are quick, but can be a bit sticky. Not worried by this as it's a new bike: cables are going to stretch and teeth will deburr with use. It's a solid bike, and in my opinion the best looking at this price point. Great service from Tredz too.

    Close review
    4.5 out of 5
    Build Quality: 5/5
    Performance: 5/5
    Value For Money: 3.5/5

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