2021 GT

Avalanche Comp

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

$950
FrameAluminum
SuspensionHardtail, 100mm
ForkSuntour XCM
Wheels27.5″ Aluminum
Drivetrain1 × 10
GroupsetmicroSHIFT Advent X
BrakesHydraulic 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

5'1" – 5'6"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

GT 6061 T6 Aluminum Frame, Triple Triangle w/ Floating Seat Stays, Internal Cable Routing, Dropper Post Routing, Boost 141 Forged Drop-outs w/ Disc Brake Mounts, Zero Stack Tapered 1 1/8"- 1.5" Head Tube, 27.5/29" Wheels

Fork

SR Suntour XCM-DS, 100mm, Hydraulic Lockout and Preload adjust, Coil

Travel100mm

Spring TypeCoil

Bottom Bracket

Cartridge, Square Taper

Headset

Semi-integrated, Sealed Cartridge, Tapered

Stem

GT All Terra, 6061 Alloy, 31.8, 8°

Handlebar

GT All Terra Alloy Riser, 25mm Rise, 8° Sweep, 6° Rise, 720mm Width

Saddle

GT MTB

Seatpost

GT All-Terra Micro Adjust Alloy Seat Post, 30.9mm

TypeRigid

Pedals

GT Slim Line Flat Pedal

Grips

GT Statement

Groupset
Rear Derailleur

Microshift RD-M6205GM

Crank

Prowheel Charm, 32T

Shifters

microSHIFT M851, 10-speed

Cassette

microSHIFT, 11-42T

Chain

KMC X10, 10-speed

Brakes

Tektro HD-M275

TypeHydraulic Disc

Wheels
Rims

WTB SX19, 32h

Spokes

Stainless Steel, 14g

Front Hub

Formula, QRx100

Rear Hub

Formula, QRx141

Tires

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

Rider Notes
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Last updated September 16
Not listed for 216 days