Trek
Marlin 4 Gen 3
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Geometry
Geometry
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Geometry
Geometry
Frame geometry
| Geometry | L | M | ML | S | XL | XS | XXL | XXS |
|---|---|---|---|---|---|---|---|---|
| Stack | 618mm | 609mm | 614mm | 572mm | 637mm | 563mm | 651mm | — |
| Reach | 470mm | 440mm | 455mm | 415mm | 495mm | 390mm | 520mm | — |
| Headtube length | 115mm | 105mm | 110mm | 100mm | 135mm | 90mm | 150mm | — |
| Headtube angle | 66.5deg | 66.5deg | 66.5deg | 66.5deg | 66.5deg | 66.5deg | 66.5deg | — |
| BB height | 308mm | 308mm | 308mm | 313mm | 308mm | 313mm | 308mm | — |
| BB drop | 60mm | 60mm | 60mm | 45mm | 60mm | 45mm | 60mm | — |
| Trail | 110mm | 110mm | 110mm | 110mm | 110mm | 110mm | 110mm | — |
| Fork length | — | — | — | — | — | — | — | — |
| Fork offset | 46mm | 46mm | 46mm | 42mm | 46mm | 42mm | 46mm | — |
| Front center | — | — | — | — | — | — | — | — |
| Chainstay length | 438mm | 438mm | 438mm | 433mm | 438mm | 433mm | 438mm | — |
| Wheelbase | 1197mm | 1163mm | 1180mm | 1121mm | 1230mm | 1092mm | 1261mm | — |
| Top tube | 647mm | 615mm | 631mm | 579mm | 678mm | 551mm | 707mm | — |
| Standover height | 771mm | 747mm | 759mm | 692mm | 791mm | 658mm | 816mm | — |
| Seat tube length | 450mm | 420mm | 435mm | 370mm | 500mm | 340mm | 540mm | — |
| Seat tube angle | 73.4deg | 73.4deg | 73.4deg | 73.8deg | 73.4deg | 73.8deg | 73.4deg | — |
Spec geometry
| Geometry | L | M | ML | S | XL | XS | XXL | XXS |
|---|---|---|---|---|---|---|---|---|
| Crank length | 175mm | 170mm | 170mm | 170mm | 175mm | 160mm | — | 160mm |
| Stem length | 50mm | 50mm | 50mm | 35mm | 60mm | 35mm | — | 35mm |
| Handlebar width | 750mm | 750mm | 750mm | 720mm | 750mm | 690mm | — | 690mm |
| Handlebar reach | — | — | — | — | — | — | — | — |
| Handlebar drop | — | — | — | — | — | — | — | — |
| Saddle width | — | — | — | — | — | — | — | — |
| Dropper post travel | — | — | — | — | — | — | — | — |
| Seatpost offset | 12mm | 12mm | 12mm | 12mm | 12mm | 12mm | — | 12mm |
Specs
Full specs
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Specs
Full specs
Frame
Frame
Alpha Silver Aluminum (XXS, XS: curved top tube), internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
Suspension
Fork
XXS: SR Suntour XCM 30, coil spring, preload, hydraulic lockout, 42mm offset (26"), 100mm QR, 100mm travel; XS: SR Suntour XCE 28, coil spring, preload, 42mm offset (27.5"), 100mm QR, 80mm travel; S: SR Suntour XCE 28, coil spring, preload, 42mm offset (27.5"), 100mm QR, 100mm travel; M/ML/L/XL: SR Suntour XCE 28, coil spring, preload, 46mm offset (29"), 100mm QR, 100mm travel
Brakes
Front brake
Hydraulic disc — XXS/XS/S: Tektro HD-M276; M/ML/L/XL: Tektro HD-M275 (also listed: Power BH-M286TF)
Rear brake
Hydraulic disc — XXS/XS/S: Tektro HD-M276; M/ML/L/XL: Tektro HD-M275 (also listed: Power BH-M286TF)
Front rotor
Tektro, 6-bolt — 160mm (XXS–XL), 180mm (M–XL listed)
Rear rotor
Tektro, 6-bolt — 160mm (XXS–XL)
Drivetrain
Shift levers
Shimano M315, 8-speed
Rear derailleur
Shimano ESSA U2000
Cassette
Shimano HG300, 8-speed, 11-45T
Chain
KMC Z8.3, 8-speed
Crankset
ProWheel alloy, 30T narrow-wide steel ring — XXS/XS: 160mm; S/M/ML: 170mm; L/XL: 175mm
Bottom bracket
Threaded cartridge
Cockpit
Stem
Bontrager Comp, 31.8mm, 7° — XXS/XS/S: 35mm; M/ML/L: 50mm; XL: 60mm (M–XL Blendr compatible)
Handlebars
Bontrager alloy, 31.8mm — XXS/XS: 5mm rise, 690mm; S: 15mm rise, 720mm; M/ML/L/XL: 15mm rise, 750mm
Grips
Trek Line Comp, nylon lock-on
Saddle
Bontrager Verse Short, stainless steel rails
Seatpost
Bontrager alloy, 31.6mm, 12mm offset — XXS: 300mm; XS/S/M: 330mm; ML/L/XL: 400mm
Wheels & Tires
Front wheel
Bontrager Connection, double-wall, 32-hole, 20mm width, Schrader valve; Formula DC-20, alloy, 6-bolt, 100x5mm
Rear wheel
Bontrager Connection, double-wall, 32-hole, 20mm width, Schrader valve; Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm
Front tire
Bontrager Montrose Comp, wire bead, 30 tpi — XXS: 26x2.35; XS/S: 27.5x2.4; M/ML/L/XL: 29x2.4
Rear tire
Bontrager Montrose Comp, wire bead, 30 tpi — XXS: 26x2.35; XS/S: 27.5x2.4; M/ML/L/XL: 29x2.4
Weight
Weight
14.90 kg / 32.85 lb (size M)