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2021 GT

Avalanche Sport

A 27.5″ aluminum frame hardtail crosscountry bike with modest components.
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Manufacturer Price

$850
FrameAluminum
SuspensionHardtail, 100mm
ForkSuntour XCT
Wheels27.5″ Aluminum
Drivetrain2 × 9
GroupsetmicroSHIFT Mezzo
BrakesTektro Hydraulic Disc
View on gtbicycles.comLearn about GT
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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)

27 mph

Avalanche Sport

27 mph

Similar Bikes

Highest gear

(descending)

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

None yet.

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Geometry
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 XCT-DS, 100mm, Hydraulic Lockout and Preload adjust, Coil

Travel: 100mm

Spring Type: Coil

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

Type: Rigid

Pedals

GT Slim Line Flat Pedal

Grips

GT Statement

Groupset
Rear Derailleur

microSHIFT RD-M36L

Front Derailleur

Microshift FD-M392B

Crank

Prowheel RAID-501-TT 36/22

Shifters

microSHIFT TS39-29, 9-speed

Cassette

microSHIFT, 11-36T

Chain

KMC Z9, 9-speed

Brakes

Tektro M275 Hydro Disc, 160/160mm Rotors, Front: Tektro M275 Hydro Disc, 160/160mm Rotors, Rear: Tektro M275 Hydro Disc, 160/160mm Rotors

Type: Tektro Hydraulic Disc

Wheels
Rims

WTB SX19, 32h

Spokes

Stainless Steel, 14g

Front Hub

Alloy Disc, QRx100

Rear Hub

Alloy Disc, QRx141

Tires

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

Rider Notes
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First added March 24

Last updated September 16

Not listed for 986 days