GT Aggressor Sport Bike 2020

  • Description
  • Size Guide
  • Additional information
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Description

GT Aggressor Sport Bike

This snappy and sporty hardtail is perfect for mastering the mountain as it offers amazing speed and strength on every run. Durably-constructed from a hard-wearing 6061-T6 aluminium, its supportive frame features a triple triangle design for enhanced robustness and comfort on unpredictable terrains. Set with progressive geometry and angles to encourage you to take on the most exciting of routes, this Sport model is well-equipped to take on any challenge.

SR Suntour Fork

Kitted out with an impact-munching Suntour M3030 front fork, this Aggressor model makes the most of its 70mm travel to absorb every bump that you encounter on your travels. GT has also installed a 7 speed Shimano Tourney drivetrain and an All Terra crankset to this version for a smooth-shifting and speedy performance as you shred from trail to trail.

WTB SX19 Wheels

Perfect for tackling mixed terrain conditions, this powerful hardtail rolls on a pair of WTB SX19 wheels which are wrapped in WTB Ranger Comp tyres for a consistent and cushioned experience. Topped off with a set of mechanical disc brakes for superb control, this is a perfect choice of upgrade for riders who want a stronger and more reliable hardtail.

Features:

  • Frame: All new 6061 T6 Aluminium, triple triangle with floating seat stays, forged drop-outs with disc brake mounts, zero stack 1 1/8″ head tube, 27.5/29″ wheels
  • Fork: SR Suntour M3030, 75mm, coil
  • Stem: 6061 Alloy, 31.8mm clamp, 8°, 90mm
  • Handlebar: GT All Terra Alloy riser, 25mm rise, 8° sweep, 6° rise
  • Front Derailleur: Shimano Tourney, 31.8mm clamp
  • Rear Derailleur: Shimano Tourney
  • Shifters: Shimano EZ Fire EF41
  • Brakes: Cable actuated mechanical disc, 160/160mm rotors
  • Crankset: All Terra, 42/34/24T
  • Cassette: Sunrace, 14-34T
  • Chain: KMC Z51, 7 speed
  • Tyre: WTB Ranger Comp, 27.5/29×2.25″, DNA compound
  • Rims: WTB SX19, 32h
  • Front Hub: Sealed Alloy disc, QR
  • Rear Hub: Sealed Alloy disc, QR
  • Saddle: GT MTB
  • Seatpost: Alloy Micro Adjust 27.2x300mm

Easy Assembly

When you order a bike, one of our trained mechanics will carefully prepare and pack your bike for shipping. Upon delivery, the assembly is simple and all necessary tools are conveniently included in the box.

Depending on the delivery service and destination, bikes will either be delivered in a large or a small box. Below is a guide as to how your bike will arrive:

  • All bikes for delivery within the UK and Republic of Ireland will be delivered in a large box, except for kids’ bikes and BMX bikes, which are always delivered in manufacturer’s boxes.
  • All bikes for delivery within the EU on a standard service will be delivered in a large box. If an express delivery option is chosen, your bike will be packed into a small box. Again, the exception is kids’ bikes and BMX bikes, which are always delivered in manufacturer’s boxes.
  • All bikes for worldwide delivery outside the EU will be delivered in small boxes.

This video demonstrates assembly from a SMALL BOX.

This video demonstrates assembly from a LARGE BOX.

Buy GT Bikes from Chain Reaction Cycles, the World’s Largest Online Bike Store.

Specs

  • Colour: Satin Black – White
  • Frame Size: L
  • Wheel Size: 29″
  • Gender: Unisex
  • Speed: 21 Speed
  • Material: Aluminium
  • Fork Travel: 75mm

Bike Sizing Guide

Choosing the bike size depends on the type of bike, your height, your riding style, and your preference. A correct fitting bike will be more comfortable, more efficient and more fun to ride. This bike size guide gives our customers general advice on choosing the right size. It is a guide only and we always recommend visiting one of our stores or contacting one of our experts from our contact us page.

To get started, think about your style of riding, measure your height and use the links above for sizing on relevant bike types.

 

Measure your height

To find the correct sized bike you will need to measure your height and your inside leg. For your height, stand against a wall and mark the wall with a pencil so it's level with the top of your head. Then measure from the ground up to the mark (having someone to help might make this easier). For your inside leg measurement, stand against a wall and using a book hold it in between your legs into your groin and make sure it's flat against the wall. Measure the height from the book to the floor. (Again it might be easier to get a friend to help). If your height is on the cusp of the size range, your reach is often the deciding factor in which size to go for. To find out if you have short or long reach you will need to measure your ape index. This is your arm span minus your height. If you have a positive ape index then go for the larger size, or if you have a negative ape index go for a smaller size.

 

The type of bike

What type of bike you choose will affect the bike size you buy. The type or style of riding that you do will also affect which size you need. For example a mountain biker that wants to ride more aggressively and would like a more manoeuvrable bike may prefer a size smaller than they would normally take. Likewise a cross country racer that is looking for a flatter and speedier mountain bike may prefer a size larger than they would normally take. There is no definitive right or wrong size, it all comes down to personal preference and what feels comfortable. The different types of bikes are all explained within our buying guides.

 

How are bikes measured?

Bikes are measured by their seat tube length. This measurement is normally from the centre of the bottom bracket (BB) or the centre of the bolt that attached the crank arms. This differs by brand, some measure to the top of where the top tube meets the seat tube, or even the centre of the top tube. Mountain bikes are either measured in inches or descriptive sizes (small, medium etc). Road bikes are in centimetres or descriptive sizes where as Hybrid bikes can be any one of the three. Bikes also get longer as they go up in size (relative to the frame size) but different brands can be inherently longer or shorter than others.

 

Stand over height

Stand over height is how tall the frame is from the ground. Stand over height measurements are to the top of the top-tube. Ideally you want at least 2cm of clearance between you and the frame. In theory your stand over height is your leg measurement minus 2cm. It it worth measuring your inside leg with your shoes on so you can establish your stand over height. Should you need to jump off the saddle quickly, the clearance between you and the frame will prevent any injuries.


This handy chart should show you the right size of MTB you need based on your height. Measure your height accurately and check the manufacturer’s measurements too. You can also visit us in store to speak to an experienced member of staff.

Rider Height Suggested Mountain Frame Size
Feet & Inches Centimetres Frame Size (inches) Frame Size (cm) Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" 33 - 37 View all X-Small Bikes
5'2" - 5'6" 158cm - 168cm 15" - 16" 38 - 42 View all Small Bikes
5'6" - 5' 10" 168cm - 178cm 17" - 18" 43 - 47 View all Medium Bikes
5'10" - 6'1" 178cm - 185cm 19" - 20" 48 - 52 View all Large Bikes
6'1" - 6'4" 185cm - 193cm 21" - 22" 53 - 57 View all X-Large Bikes
6'4" - 6'6" 193cm - 198cm 23" - 24" 58 - 61 View all XX-Large Bikes

Shop All Mountain Bikes

This handy chart should show you the right size of road bike you need based on your height. Measure your height accurately and always check the manufacturer’s measurements too. You can also visit us in store to speak to an experienced member of staff.

Rider Height Suggested Road Bike Size
Feet & Inches Centimetres Frame Size (cm)
4'10" - 5'0" 148cm - 152cm XX-Small (47cm - 48cm) View all XX-Small Road Bikes
5'0" - 5'3" 152cm - 160cm X-Small (49cm - 50cm) View all X-Small Road Bikes
5'3" - 5'6" 160cm - 168cm Small (51cm - 53cm) View all Small Road Bikes
5'6" - 5'9" 168cm - 175cm Medium (54cm - 55cm) View all Medium Road Bikes
5'9" - 6'0" 175cm - 183cm Large (56cm - 58cm) View all Large Road Bikes
6'0" - 6'3" 183cm - 191cm X-Large (58cm - 60cm) View all X-Large Road Bikes
6'3" - 6'6" 191cm - 198cm XX-Large (61cm - 63cm) View all XX-Large Road Bikes

Shop All Road Bikes

Additional information

Size

XS, S, M, L, XL, XXL

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