2021 Trek

Marlin 6

A 29″ / 29″ aluminum frame hardtail crosscountry bike with modest components.
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Manufacturer Price

$699
Weight32.0 lbs  
FrameAluminum
SuspensionHardtail, 100mm
ForkSuntour XCT
Wheels29″ / 29″ Aluminum
Drivetrain2 × 8
GroupsetAltus, Shimano
BrakesHydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Marlin 6
Other Crosscountry bikes
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)

28 mph

Marlin 6

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.

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

Dec 2019

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

Highs
  • Wide range of gears with 2x9 drivetrain

Lows
  • Wheels and tires aren’t tubeless-ready

Read Review

MBR
Trek Marlin 6 review - MBR

Jun 2019 · Alan Muldoon

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.

Highs
  • Top-rate frame quality, available in seven sizes Independent Shimano shifters

Lows
  • Cable and chain rattle. Rear tyre is too skinny

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR

BB StandardBSA, 73mm, Threaded

Tire Clearance2.2"

ColorsRadioactive Red / Trek Black; Slate; Alpine Blue

Fork

Size: XS, SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel; Size: S, SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel; Size: M, ML, L, XL, XXL, SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel

Travel100mm

Spring TypeCoil

Bottom Bracket

VP BC73, 73 mm, threaded cartridge

Headset

Semi-integrated, 1-1/8''

Stem

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

Handlebar

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

Saddle

Bontrager Arvada, steel rails, 138 mm width

Seatpost

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

TypeRigid

Pedals

VP-536 nylon platform

Grips

Bontrager XR Endurance Comp

Groupset
Rear Derailleur

Shimano Altus M310

Front Derailleur

Shimano Altus M315, 34.9 mm clamp, top swing, dual pull

Crank

Size: XS, S, M, Shimano M315, 36/22, 170 mm length; Size: M, ML, L, XL, XXL, Shimano M315, 36/22, 175 mm length

Shifters

Shimano Altus M315, 8-speed

Cassette

Shimano HG31, 11-34, 8-speed

Chain

KMC Z8.3, 8 speed

Brakes

Tektro HD-M275 hydraulic disc, 180 mm rotor

TypeHydraulic Disc

Wheels
Rims

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

Spokes

14 g stainless steel

Front Hub

Formula DC-20, alloy, 6-bolt, 5x100 mm QR

Rear Hub

Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm 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"

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Last updated April 18
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