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  • TREK Trek Marlin 5 Gen 3 (2026)
  • TREK Trek Marlin 5 Gen 3 (2026)
  • TREK Trek Marlin 5 Gen 3 (2026)

Trek Marlin 5 Gen 3 (2026)

$849.99
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Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail.

It features a trail-savvy frame with a suspension fork, 9-speed Shimano CUES shifting, and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.

MARLIN 5 GEN 3 SPECS

*Frame
Size: XS
Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
 
Size: S , M , ML , L , XL , XXL
Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
 
*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, 42 mm offset for 29'' wheel, 100 mm QR, 100 mm travel

Hub front: Formula DC-20, alloy, 6-bolt, 100x5mm
 
Skewer front: Trek Thru-Skew
 
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
 
Spokes: 14g stainless steel, black
*Tire
Size: XS , S
Bontrager Montrose Comp, wire bead, 30 tpi, 27.5x2.4''
 
Size: M , ML , L , XL , XXL
Bontrager Montrose Comp, wire bead, 30 tpi, 29x2.4''

Shifter: Shimano U4000, 9 speed
Rear derailleur: Shimano CUES U4000
*Crank
Size: XS , S , M , ML
Shimano CUES U4001, 32T, 52mm chainline, 170mm length
 
Size: L , XL , XXL
Shimano CUES U4001, 32T, 52mm chainline, 175mm length
 
Bottom bracket: Shimano, 73mm, threaded cartridge, 122.5mm spindle
Cassette: Shimano LINKGLIDE LG300, 11-46, 9 speed
Chain: Shimano LG500, 9/10/11 speed
Pedal: VP-536 nylon platform

Saddle: Bontrager Verse Short, stainless steel rails
*Seatpost
Size: XS , S , M
Bontrager alloy, 31.6mm, 12mm offset, 330mm length
 
Size: ML , L , XL , XXL
Bontrager alloy, 31.6mm, 12mm offset, 400mm length
 
*Handlebar
Size: XS
Bontrager alloy, 31.8mm, 5mm rise, 690mm width
 
Size: S
Bontrager alloy, 31.8mm, 15mm rise, 720mm width
 
Size: M , ML , L , XL , XXL
Bontrager alloy, 31.8mm, 15mm rise, 750mm width
 
Grips: Trek Line Comp, nylon lock-on
*Stem
Size: XS , S
Bontrager Comp, 31.8mm, 7 degree, 35mm length
 
 
 
 
Headset: Semi-integrated, 1-1/8''
Brake: Shimano MT200 hydraulic disc
*Brake rotor
Size: XS , S , M , ML , L , XL , XXL
Shimano RT26, 6-bolt, 160mm
 
Size: M , ML , L , XL , XXL
Shimano RT26, 6-bolt, 180mm
 
Brake Set: Shimano MT200 hydraulic disc
Weight: M - 15.10 kg / 33.29 lbs
Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

SIZING

How tall are you?

To measure your height, stand straight up, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inseam?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inseam measurement. Your inseam is very important to your final bike size so please measure carefully.

Sizing

size-table
Size Rider Height Inseam
XS

145 - 155 cm

4'9" - 5'1"

69 - 73 cm

27" - 29"

S

155 - 165 cm

5'1" - 5'5"

74 - 78 cm

29" - 31"

M

165 - 177 cm

5'5" - 5'10"

79 - 83 cm

31" - 33"

ML

173 - 180 cm

5'8" - 5'11"

81 - 86 cm

32" - 34"

L

177 - 188 cm

5'10" - 6'2"

84 - 89 cm

33" - 35"

XL

188 - 195 cm

6'2" - 6'5"

89 - 91 cm

35" - 36"

2XL

195 - 203 cm

6'5" - 6'8"

91 - 97 cm

36" - 38"

 

Geometry

Labeled bike diagram showing geometry points A to N.
Geometry diagram labeling frame measurements A through N. Each label corresponds to a row in the geometry table below.

All measurements provided in cm unless otherwise noted.

Sizing table
Frame size number Frame size letter Wheel size A — Seat tube B — Seat tube angle Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
14.5" XS 27.5" 34.0 73.8° 74.0° 9.0 66.5° 55.1 31.3 4.5 43.3 4.2 11.0 109.2 65.8 39.0 56.3
15.5" S 27.5" 37.0 73.8° 74.0° 10.0 66.5° 57.9 31.3 4.5 43.3 4.2 11.0 112.1 69.2 41.5 57.2
17.5" M 29" 42.0 73.4° 74.0° 10.5 66.5° 61.5 30.8 6.0 43.8 4.6 11.0 116.3 74.7 44.0 60.9
18.5" ML 29" 43.5 73.4° 74.0° 11.0 66.5° 63.1 30.8 6.0 43.8 4.6 11.0 118.0 75.9 45.5 61.4
19.5" L 29" 45.0 73.4° 74.0° 11.5 66.5° 64.7 30.8 6.0 43.8 4.6 11.0 119.7 77.1 47.0 61.8
21.5" XL 29" 50.0 73.4° 74.0° 13.5 66.5° 67.8 30.8 6.0 43.8 4.6 11.0 123.0 79.1 49.5 63.7
23" XXL 29" 54.0 73.4° 74.0° 15.0 66.5° 70.7 30.8 6.0 43.8 4.6 11.0 126.1 81.6 52.0 65.1
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