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2025 GT

Avalanche Comp

A 27.5″ aluminum frame hardtail crosscountry bike with upper mid-range components.
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Manufacturer Price

$522$950
FrameAluminum
SuspensionHardtail, 100mm
ForkSuntour XCM
Wheels27.5″ Aluminum
Drivetrain1 × 10
GroupsetmicroSHIFT Advent X
BrakesTektro Hydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

24 mph

Avalanche Comp

27 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Avalanche model range

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Sizing
XS

4'7" – 5'1"

SM

5'0" – 5'6"

MD

5'5" – 5'11"

LG

5'10" – 6'3"

XL

6'0" – 6'6"

Rider Fit Notes

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Price History
Specs
Build
Frame

GT Alloy Triple Triangle, 27.5/29" Wheels, replaceable hanger

BB StandardBSA, 73mm, Threaded

ColorsBlack; Grey

Fork

SR Suntour XCM, 100mm, Hydraulic Lockout

Travel100mm

Spring TypeCoil

Bottom Bracket

BSA, Square Taper

Headset

Semi-integrated, Sealed Cartridge

Stem

GT 3D Forged Alloy, 31.8, 80mm

Handlebar

GT Alloy Riser, 25mm Rise, 720mm Width, 6° up, 8° back

Saddle

GT MTB

Seatpost

GT All Terra Two Bolt Alloy, 30.9mm

TypeRigid

Pedals

GT Slim Line Flat Pedal

Grips

GT Statement

Groupset
Rear Derailleur

microSHIFT RD-M6205GM

Front Derailleur

N/A

Crank

Prowheel Charm, 32T

Shifters

microSHIFT M850, 10-speed

Cassette

Sunrace, 11-42T

Chain

KMC X10, 10-speed

Brakes

Tektro or Nutt Hydraulic Disc Brakes, 160/160mm Rotors

TypeTektro Hydraulic Disc

Wheels
Rims

WTB SX19, 32h

Front Hub

Alloy Disc, QR, 32H

Rear Hub

Formula, QRx141, 32H

Tires

Front: WTB Ranger Comp, DNA Compound, 27.5/29 x 2.25", Rear: WTB Ranger Comp, DNA Compound, 27.5/29 x 2.25"

Rider Notes
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First added October 25

Last updated May 30