$706.69
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Marlin 4 is the perfect gateway to trail riding. It's ideal for new riders who want a mountain bike with knobby tyres, that can double as a rugged commuter. Disc brakes, front suspension, 21 speeds and mounts for a rack and mudguards make this a great bike for new trail riders and campus commuters alike.
*Please note – spec applies to all sizes unless listed separately
*Frame |
Size: XS , S Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR |
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Size: M , ML , L , XL , XXL Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR |
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*Fork |
Size: XS SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel |
Size: S SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel |
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Size: M , ML , L , XL , XXL SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel |
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Max compatible fork travel | 100mm (XS and S: 490mm axle-to-crown, M and up: 509mm axle-to-crown) |
Hub front | Formula DC-20, alloy, 6-bolt, 5x100 mm QR |
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Hub rear | Formula DC-31, alloy, 6-bolt, 6/7/8-speed freewheel, 135x5 mm QR |
Skewer rear | 152x5 mm QR |
Rim | Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve |
*Tyre |
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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Size: M , ML , L , XL , XXL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00" |
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Max tyre size | Frame: 29x2.20" (XS & S: 27.5x2.40"), Fork: See manufacturer |
*Shifter |
Size: XS , S , M , ML , L , XL , XXL Shimano Altus EF500, 7-speed |
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Size: XS , S , M , ML , L , XL , XXL Shimano Altus EF500, 3-speed |
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Front derailleur | Shimano Tourney TY300, 34.9 mm clamp, down swing, down pull |
Rear derailleur | Shimano Tourney TY300 |
*Crank |
Size: XS , S , M Shimano Tourney TY301, 42/34/24, 170 mm length |
Size: ML , L , XL , XXL Shimano Tourney TY301, 42/34/24, 175 mm length |
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*Bottom bracket |
Size: XS , S , M , ML , L , XL , XXL VP BC73, 73 mm, threaded cartridge |
Size: XS , S , M , ML , L , XL , XXL Sealed cartridge, 73mm |
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Cassette | Shimano TZ500, 14-28, 7--speed |
Chain | KMC Z7, 7-speed |
Pedal | VP-536 nylon platform |
Max. chainring size | 1x/2x: 34T, 3x: 42T |
Saddle | Bontrager Arvada, steel rails, 138 mm width |
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*Seatpost |
Size: XS , S Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length |
Size: M Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length |
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Size: ML , L , XL , XXL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length |
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*Handlebar |
Size: XS , S Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width |
Size: M , ML , L , XL , XXL Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width |
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*Grips |
Size: XS , S , M , ML , L , XL , XXL Bontrager XR Endurance Comp |
Size: XS , S , M , ML , L , XL , XXL Bontrager XR Endurance Comp, lock-on |
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*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 |
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Size: M Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length |
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Size: ML , L Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length |
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Size: XL , XXL Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 90 mm length |
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Head set | Semi-integrated, 1-1/8" |
*Brake |
Size: XS , S , M , ML , L , XL , XXL Tektro MD-M280 mechanical disc, 160 mm rotor |
Size: XS , S , M , ML , L , XL , XXL Tektro MD-M281 mechanical disc, 160 mm rotor |
Weight | M - 14.40 kg / 31.75 lb |
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Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
**Trek Bikes reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
Size | Rider Height | Inseam |
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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 - 176 cm 5'5" - 5'9" |
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" |