Trek Marlin 4
Trek Marlin 4
Trek Marlin 4
Trek Marlin 4

TREK

Trek Marlin 4 Mountain Bike 2026

  • Sale
  • $629.99

Marlin 4 is a trail-worthy daily rider built for everything from weekday commutes to weekend adventures. It features a stable frame with a suspension fork to smooth rough paths, plus 8-speed Shimano ESSA shifting and mounts for racks and a kickstand. Whether you're rolling to class, work, or the trailhead, Marlin 4 brings the comfort and confidence of a commuter with the ruggedness of a real mountain bike.

Frame
Size: XXS , XS
Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
Size: S , M , ML , L , XL
Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
*Fork
Size: XXS
SR Suntour XCM 30, coil spring, preload, hydraulic lockout, 42mm offset for 26'' wheel, 100mm QR, 100mm travel
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
SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm QR, 100mm travel


Hub front
Formula DC-20, alloy, 6-bolt, 100x5mm
Skewer front
116x5mm QR
Hub rear
Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm
Skewer rear
173x5mm QR
Rim
Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
Tire
Size: XXS
Bontrager Montrose Comp, wire bead, 30 tpi, 26x2.35''
Size: XS , S
Bontrager Montrose Comp, wire bead, 30 tpi, 27.5x2.4''
Size: M , ML , L , XL
Bontrager Montrose Comp, wire bead, 30 tpi, 29x2.4''


Shifter
Shimano M315, 8 speed
Rear derailleur
Shimano ESSA U2000
Crank
Size: XXS , XS
ProWheel alloy, 30T narrow-wide steel ring, 160mm length
Size: S , M , ML
ProWheel alloy, 30T narrow-wide steel ring, 170mm length
Size: L , XL
ProWheel alloy, 30T narrow-wide steel ring, 175mm length
Bottom bracket
Threaded cartridge
Cassette
Shimano HG300, 11-45, 8 speed
Chain
KMC Z8.3, 8 speed
Pedal
nylon platform


Saddle
Bontrager Verse Short, stainless steel rails
Seatpost
Size: XXS
Bontrager alloy, 31.6mm, 12mm offset, 300mm length
Size: XS , S , M
Bontrager alloy, 31.6mm, 12mm offset, 330mm length
Size: ML , L , XL
Bontrager alloy, 31.6mm, 12mm offset, 400mm length
Handlebar
Size: XXS , XS
Bontrager alloy, 31.8mm, 5mm rise, 690mm width
Size: S
Bontrager alloy, 31.8mm, 15mm rise, 720mm width
Size: M , ML , L , XL
Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Grips
Trek Line Comp, nylon lock-on
Stem
Size: XXS , XS , S
Bontrager Comp, 31.8mm, 7 degree, 35mm length
Size: M , ML , L
Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
Size: XL
Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length
Headset
Semi-integrated, 1-1/8''
Brake
Size: XXS , XS , S
Tektro HD-M276 hydraulic disc
Size: XXS , XS , S , M , ML , L , XL
Power BH-M286TF hydraulic disc, 160mm rotor
Size: M , ML , L , XL
Tektro HD-M275 hydraulic disc
Size: M , ML , L , XL
Power BH-M286TF hydraulic disc, 180mm rotor
Brake rotor
Size: XXS , XS , S , M , ML , L , XL
Tektro, 6-bolt, 160mm
Size: M , ML , L , XL
Tektro, 6-bolt, 180mm


Weight
M - 14.90 kg / 32.85 lbs
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

Trek may make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

THIS PRODUCT CANNOT BE SHIPPED.  YOU MUST COME TO OUR RETAIL STORE FOR DELIVERY