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The 2020 GT Avalanche Sport Hardtail Mountain Bike in Black is ideal for the aspiring mountain biker. The Avalanche Sport is a great off-road capable machine as it comes and is easy to adapt as your skills develop.


2020 GT Avalanche Sport Hardtail Mountain Bike Black

  • €552.55
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Hassle Free Returns


Refunds are processed by the same method of payment used for the original purchase. All debit and credit card refunds can only be made to the card used for the original transaction, cheque payments will be refunded in cash but due to banking and clearance restrictions can only be refunded 14 days after the purchase date.


Store Purchases

Should you be unhappy with a purchase from one of our stores, please return the goods with proof of purchase within 7 days for a full refund, or within 14 days for a credit note. Any items can be returned to any Cycles UK store, providing they are returned in their original condition – unused (unless the goods are faulty). We regret we cannot refund special orders or cycle purchases.


Mail Order Returns

At Cycles UK, we pride ourselves on excellent customer service and aim to ensure our customers are 100% happy with their purchase. In the unlikely event that you are not, please feel free to return your goods within 90 days of receipt of them, with proof of purchase for a full exchange or refund. All items can be returned to us providing they are returned in their original condition – unused (unless the goods are faulty). All Mail order purchases must be returned by the customer to our head office address unless arranged otherwise. Depending on the reasons for returning an item, postal charges could apply.


Returning your order from within the UK 

Return your item(s) to us using the Royal Mail tracked service for free. (Excludes bikes and bulkier items and parcels over 2KG for UK use only)


  • Please print off the Royal Mail label, and attach it onto your parcel. 
  • Click here to print off a label .
  • Note when asking for an *Order ID this need to be preceded with the word "Web" followed by a space. For example Web 1234
  • Complete the returns note that came with your package and pop it into the package with your return.
  • Take your parcel into any Post Office. Remember to ask for a proof of return receipt.
  • The return can be tracked using the tracking reference from your receipt at
  • We aim to complete returns within 7 working days (excluding weekends and bank holidays).
  • We'll send you an email informing you that the refund or exchange is complete. 
  • Any refund will automatically be issued to the payment method you used to place your original order. This typically takes 5 working days in the UK, depending on your payment method issuer.
  • We endevor to accept all returns, and they don't need to be in the original box or bag, as long as they're securely packed. If an item is returned in an unsuitable condition, we will send it back to you.


International Returns

If you wish to return an item that is unsuitable or not required, you will be liable for the return delivery. If you want to try a different size or style, then, delivery will be charged again to post the item back to you.

If you feel the product(s) you have purchased are faulty, please contact our Customer Service team on 44(0)1268 775265.


Disclaimer: Our website contains links to websites owned and operated by third parties; these are provided solely for your convenience. Cycles UK has no control over these sites and is not responsible for their content or availability.

2020 GT Avalanche Sport Hardtail Mountain Bike Black

Season : 2020

Brand : GT

Code : G27400MMATBLK

Weight : 0KG

The 2020 GT Avalanche Sport Hardtail Mountain Bike in Black is ideal for the aspiring mountain biker. The Avalanche Sport is a great off-road capable machine as it comes and is easy to adapt as your skills develop.

The Avalanche is built around a 6061 aluminium triple triangle frame with floating seat stays to provide a more comfortable ride. Internal cable routing and Stealth dropper post routing give plenty of options for upgrades while Boost 141mm rear spacing makes the back of the bike more rigid and give plenty of room for running larger tyres. The small and xsmall sizes on the Avalanche come with 27.5” wheels while the medium, large and xlarge sizes come with 29” wheels.

The Avalanche Sport comes with a Suntour suspension fork with lockout, Tektro hydraulic disc brakes and 9 speed Shimano gears. Everything you need for off-road riding.


This bike is perfect for

Riders who are new to mountain biking or who are looking to upgrade to a properly off-road capable bike.


Key Features

  • Floating seat stays provide a more comfortable ride
  • Internal cable routing for a clean and modern look
  • Stealth dropper post routing
  • Blended wheel-size accommodates a wide range of riders XS,S (27.5"), M,L,XL(29")


  • €552.55
  • $519.99
  • $748.93
  • kr5,791.02
  • kr4,907.80
  • kr4,117.70
  • $795.41
  • ¥55,936.13
Technical Information
SIZES - XS,S (27.5"), M,L,XL(29")
FRAME - All-New 6061 T6 Aluminum frame, Triple Triangle with floating seat stays, Internal Cable Routing, stealth dropper post routing, Boost 141 Forged drop-outs with disc brake mounts, Zero stack tapered  1 1/8"- 1.5" head tube, 27.5/29" wheels
FORK - SR Suntour XCT-DS, 100mm, hydraulic lockout, Coil
CHAIN - KMC Z9, 9-speed
CRANK - All Terra, 36/22
BOTTOM BRACKET - Cartridge, square taper
PEDALS - GT Slim Line Flat Pedal
FRONT DERAILLEUR - MicroShift Direct Mount
REAR DERAILLEUR - Shimano Alivio
SHIFTERS - Shimano Altus, 9-speed
COG SET - Shimano HG200, 11-36, 9-speed
RIMS - WTB SX19, 32h
TYRES - WTB Ranger Comp, 27.5/29 x 2.25", DNA Compound
WHEELS SIZE - 27.5/29
FRONT HUB - Sealed Alloy Disc, QR
SPOKES - 14g
BRAKES - Tektro M275 hydro disc, 160/160mm rotors
BRAKE LEVERS - Tektro M275
HANDLEBAR - GT All Terra Alloy Riser, 25mm rise, 8° sweep, 6° rise, 720mm width
STEM - All Terra Alloy 1 1/8” Threadless, 4-Bolt W/ CNC Face Plate, 31.8, 8°, 80mm
GRIPS - GT Statement2 Single Lock-on Grips
HEADSET - Semi Intgrated, Sealed Cartridge, Tapered
SADDLE - All Terra MTB
SEAT POST - All Terra Micro Adjust, 6061 Alloy, 30.9 x 350mm
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.