MountainVerified spec

2021 Trek Marlin 4 Gen 2

Launched at $490

Own a 2021 Trek Marlin 4 Gen 2?

Track its value in your garage, or list it for sale locally in a few taps.

What a used one is worth

New

$274

$177 to $330

Like new

$260

$168 to $313

Excellent

$246

$159 to $297

Good

$205

$133 to $247

Fair

$151

$97 to $181

For parts

$82

$53 to $99

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Fork: SR Suntour XCE 28, coil spring, preload, 100mm QR, 100mm travel
Stem: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree
Tires: Bontrager XR2 Comp, wire bead, 30tpi, 2.20"
Brakes: Tektro MD-M280 mechanical disc, 160mm rotor
Saddle: Bontrager Arvada, steel rails, 138mm width
Wheels: Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
Cassette: Shimano TZ500, 14-28, 7 speed
Crankset: Shimano Tourney TY301, 42/34/24
Seatpost: Bontrager alloy, 31.6mm, 12mm offset
Shifters: Shimano Altus EF500, 7 speed
Handlebar: Bontrager alloy, 31.8mm, 5mm rise
Weight kg: 14.4
Rear derailleur: Shimano Tourney TY300, long cage, 34T max cog
Travel front mm: 100

23: Reach mm: 480; Stack mm: 630; Chainstay mm: 438; Wheelbase mm: 1173; Head angle deg: 69.5; Seat angle deg: 73
13.5: Reach mm: 376; Stack mm: 565; Chainstay mm: 438; Wheelbase mm: 1049; Head angle deg: 69.3; Seat angle deg: 73.5
15.5: Reach mm: 385; Stack mm: 574; Chainstay mm: 438; Wheelbase mm: 1066; Head angle deg: 69.3; Seat angle deg: 73.5
17.5: Reach mm: 418; Stack mm: 602; Chainstay mm: 438; Wheelbase mm: 1100; Head angle deg: 69.5; Seat angle deg: 73
18.5: Reach mm: 434; Stack mm: 602; Chainstay mm: 438; Wheelbase mm: 1116; Head angle deg: 69.5; Seat angle deg: 73
19.5: Reach mm: 451; Stack mm: 611; Chainstay mm: 438; Wheelbase mm: 1137; Head angle deg: 69.5; Seat angle deg: 73
21.5: Reach mm: 466; Stack mm: 630; Chainstay mm: 438; Wheelbase mm: 1159; Head angle deg: 69.5; Seat angle deg: 73

Sold across model years 2020-2023 under one product code. Price as shown on Trek's US site, 2020-08 capture.

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