GT Avalanche Sport 27.5 (2019) - Review

by Simon Ananda Raj May 19, 2025 1 min read

GT is an American bicycle brand with its expertise in manufacturing performance MTB's. There is a wide range of MTB models which are built for varied trail needs. We got the opportunity to test ride the GT Avalanche Sport 27.5 (2019) and here is what we thought. Weight: 15.2 kgs Usage: Trail/Leisure

A stylish, lightweight and fast hardtail MTB with a 1mm front suspension fork and powerful Hydraulic Disc brakes.

Simon Ananda Raj

GT Avalanche Sport 27.5 (2019)

Snapshot

4.1

Product Rating Out of 5

Performance 4.2

Design 4.2

Features 4.0

Value for Money 3.8
THINGS WE LIKE

✔ Powerful 100mm front suspension fork

✔ Smooth shifting 3x9-Speed drivetrain

✔ Powerful Tektro Hydraulic Disc brakes

THINGS WE DON'T LIKE

✖ No Internal Cable Routing

✖ N/A

✖ N/A
Frame

6061 T6 Aluminium

The geometry helps in even weight distribution and also helps absorb vibrations of the trail.
Fork

Suntour XCT-DS 100mm Travel and Hydraulic Lockout

This suspension fork worked smoothly.
Gearing

Shimano Altus/Alivio 3x9-Speed

The Shimano Altus/Alivio 3x9-Speed drivetrain is ideal for fast paced trail rides.
Breaks

Tektro Hydraulic Disc Brakes

The Tektro’s Hydraulic Disc brakes were powerful and balanced with an easy 2 finger brake lever.
Tires

WTB Transition 27.5" x 2.25"

The WTB Transition 27.5” x 2.25” MTB tires were heavily treaded and fast rolling.
Battery

N/A

N/A

: The GT Avalanche Sport 27.5 (2019) is built on a T6 Aluminium hardtail frame. This frame has GT's patented triple triangle design geometry. The geometry helps in even weight distribution and also helps absorb vibrations of the trail, which in turn gives the rider a comfortable riding experience with lesser fatigue.The SR Suntour XCT-DS front suspension fork comes with a 1mm travel. This suspension fork worked smoothly and the manual hydraulic suspension lockout helped making the fork rigid which in turn helps the rider to ride faster and accelerate easier on flatter surfaces.

This hardtail MTB frame comes in 16.9”(M) and 19.1”(L) frame sizes
: This hardtail MTB is equipped with a 3x9-Speed Shimano Alivio at the rear and Altus at the front as derailleurs. While Alivio and Altus are a combination of lower and higher level combination of derailleurs, the shifting performance was smooth. The Shimano Altus 27-Speed shifters were easy to use with a swift spring action.

The Shimano Altus/Alivio 3x9-Speed drivetrain is ideal for fast paced trail rides
: The Avalanche Sport 29 which I test rode came in a full Aqua Blue frame with Black as the secondary colour for text and graphics. The gloss paint job was of great quality which was shining. The triple triangle frame design was neat and elegant with thin tubing with smoothly welded edges.

The Avalanche Sport 27.5 (2019) comes in just 1 colour variant, Aqua Blue with Black graphics
: The Tektro Hydraulic Disc brakes were powerful, reactive and balanced to use during the test ride. These brakes are ideal for fast trail rides and the brake levers needed very less pressure to engage them.The All-Terra MTB Alloy handlebar was 72mm wide and this made sure the rider has an open chested posture gives the rider total control over the bicycle.

The Tektro's Hydraulic Disc brakes were powerful and balanced with an easy 2 finger brake lever
: The GT Avalanche Sport 27.5 (2019) rolls on a pair of 27.5” x 2.25” WTB Transition tires. These tires were heavily treaded with bulky buttons which were evenly spread. The 27.5” circumference made sure the tires could roll faster which is useful for flat road rides in the city and also to get to that nearby trail from your house. The All Terra MTB specific saddle was ergonomically designed to make sure the riders sit bones are perfectly placed on the widest points of the saddle.

The WTB Transition 27.5” x 2.25” MTB tires were heavily treaded and fast rolling

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: This hardtail MTB had a simple and sleek tube profile with the triple triangle design geometry that helps with weight distribution. The ride was fast and the 27.5” tires were fast rolling on flat roads and have bulky treads for rough trails. The 27-Speed Altus/Alivio drivetrain was smooth in shifting and the Tektro Hydraulic Disc brakes were powerful. Priced at Rs.42,485(as on 9th July 219) the GT Avalanche Sport 27.5 (2019) is an ideal choice for anyone looking to buy a bicycle for trail riding and occasional city rides.Prices and Specifications/Components are subject to change by the brand, without due notice.