2022 Trek Marlin 4

A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with modest components and mechanical disc brakes, priced at the low end of the Marlin model range. Compare the full range

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2022 Trek Marlin 4
MSRP$579
SuspensionHardtail
Travel80mm front
FrameAluminum
ForkSunTour
Wheels27.5″ / 29″
Tire Clearance2.2"
Drivetrain3 × 7
GroupsetTourney, Altus
BrakesMechanical Disc

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Gearing

3 × 7 — 21 speed

Marlin 4

26 mph

Similar Bikes

27 mph

Similar bikes are easier to ride up hills than the Marlin 4.

The Marlin 4 won‘t keep up with similar bikes while riding downhill or sprinting.


Estimated Spec Level

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

Spec level →$0$100$200$300$400$500
This bike
Other crosscountry bikes

Reviews

December 2019

Bicycling
The Trek Marlin 7 Has The Heart Of A Race Bike

This cheap mountain bike is the perfect gateway drug to your next (trail riding) addiction.

Read Full Review

June 2019

MBR
Trek Marlin 6 review - MBR

The first of two 29er to make it into the sub 500 category, the Trek Marlin 6 certainly didn't behave like a fish out of water.

Read Full Review


Geometry

Sizing
XS

4'9" – 5'2"

SM

5'0" – 5'6"

MD

5'4" – 5'9"

MD/LG

5'7" – 5'12"

LG

5'10" – 6'3"

XL

6'1" – 6'6"

XXL

6'4" – 6'9"


Specs
Build
Frame

Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR

BB StandardBSA, 73mm, threaded

Tire Clearance2.2"

Fork

Size: XS, SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel; Size: S, SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel; Size: M, ML, L, XL, XXL, SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm QR, 100mm travel

Bottom Bracket

VP BC73, 73mm, threaded cartridge

Headset

Semi-integrated, 1-1/8''

Stem

Size: XS, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length; Size: S, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: M, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: ML, L, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: XL, XXL, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length

Handlebar

Size: XS, S, Bontrager alloy, 31.8mm, 5mm rise, 690mm width; Size: M, ML, L, XL, XXL, Bontrager alloy, 31.8mm, 5mm rise, 720mm width

Saddle

Bontrager Arvada, steel rails, 138mm width

Seatpost

Size: XS, S, Bontrager alloy, 31.6mm, 12mm offset, 330mm length; Size: M, Bontrager alloy, 31.6mm, 12mm offset, 360mm length; Size: ML, L, XL, XXL, Bontrager alloy, 31.6mm, 12mm offset, 400mm length

Grips

Bontrager XR Endurance Comp, lock-on

Groupset
Rear Derailleur

Shimano Tourney TY300, long cage, 34T max cog

Front Derailleur

Shimano Tourney TY300, 34.9mm clamp, down swing, down pull

Crank

Size: XS, S, M, Shimano Tourney TY301, 42/34/24, 170mm length; Size: ML, L, XL, XXL, Shimano Tourney TY301, 42/34/24, 175mm length

Shifters

Shimano Altus EF500, 7 speed

Cassette

Shimano TZ500, 14-28, 7 speed

Chain

KMC Z7, 7 speed

Brakes

Size: XS, S, M, ML, L, XL, XXL, Tektro MD-M280 mechanical disc, 160mm rotor; Size: XS, S, M, ML, L, XL, XXL, Tektro MD-M281 mechanical disc

Wheels
Rims

Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve

Spokes

14g stainless steel

Front Hub

Formula DC-20, alloy, 6-bolt, 5x100mm QR

Rear Hub

Formula DC-31, alloy, 6-bolt, 6/7/8 speed freewheel, 135x5mm QR

Tires

Size: XS, S, Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20''; Size: M, ML, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20''; Size: M, ML, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00''

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