2026 Trek Marlin 7 Gen 3 Bike

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Trek


$70 standard shipping on bikes (continental U.S. only).	$70 standard shipping on bikes (continental U.S. only). $629.99	Buy
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Free standard UK delivery on orders over £50.	Free standard UK delivery on orders over £50. £500.00	Buy
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Trek Marlin 4 Gen 3 - Nearly New - M	Trek Marlin 4 Gen 3 - Nearly New - M £495.00	Buy
Trek Marlin 6 Gen 3 - Nearly New - L	Trek Marlin 6 Gen 3 - Nearly New - L £780.00	Buy
Free shipping on orders over $69 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
Free U.S. shipping on everything. International shipping available. Some exclusions apply.	Browse available Bikes
Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes

Specifications

Product

Trek Marlin 7 Gen 3 Bike

Model Year

2026

Intended Use

Cross Country

Rider

Unisex

Sizes and Geometry

XXL

View Full Geometry

Size	XS	SM	MD	ML	LG	XL	XXL
Top Tube Length	551mm	579mm	602mm	628mm	638mm	659mm	673mm
Head Tube Angle	66.5°	66.5°	69.5°	69.5°	69.5°	69.5°	69.5°
Head Tube Length	90mm	100mm	90mm	90mm	100mm	120mm	120mm
Seat Tube Angle	74.0°	74.0°	73.0°	73.0°	73.0°	73.0°	73.0°
Seat Tube Length	340mm	370mm	419mm	444mm	470mm	521mm	559mm
Bottom Bracket Height	313mm (45mm drop)	313mm (45mm drop)	310mm (58mm drop)	310mm (58mm drop)	310mm (58mm drop)	310mm (58mm drop)	311mm (58mm drop)
Chainstay Length	433mm	433mm	438mm	438mm	438mm	438mm	438mm
Wheelbase	1092mm	1121mm	1100mm	1116mm	1137mm	1159mm	1173mm
Standover	658mm	692mm	748mm	758mm	757mm	769mm	804mm
Reach	390mm	415mm	418mm	434mm	451mm	466mm	480mm
Stack	563mm	572mm	602mm	602mm	611mm	630mm	630mm
Additional Info	• XS/SM have 27.5" wheels; MD-XXL have 29" wheels • All specifications listed are with 100mm travel fork with 42mm offset

Sizes Additional Info

• XS/SM have 27.5" wheels; MD-XXL have 29" wheels

• All specifications listed are with 100mm travel fork with 42mm offset

View Full Geometry

Size	XS	SM	MD	ML	LG	XL	XXL
Top Tube Length	551mm	579mm	602mm	628mm	638mm	659mm	673mm
Head Tube Angle	66.5°	66.5°	69.5°	69.5°	69.5°	69.5°	69.5°
Head Tube Length	90mm	100mm	90mm	90mm	100mm	120mm	120mm
Seat Tube Angle	74.0°	74.0°	73.0°	73.0°	73.0°	73.0°	73.0°
Seat Tube Length	340mm	370mm	419mm	444mm	470mm	521mm	559mm
Bottom Bracket Height	313mm (45mm drop)	313mm (45mm drop)	310mm (58mm drop)	310mm (58mm drop)	310mm (58mm drop)	310mm (58mm drop)	311mm (58mm drop)
Chainstay Length	433mm	433mm	438mm	438mm	438mm	438mm	438mm
Wheelbase	1092mm	1121mm	1100mm	1116mm	1137mm	1159mm	1173mm
Standover	658mm	692mm	748mm	758mm	757mm	769mm	804mm
Reach	390mm	415mm	418mm	434mm	451mm	466mm	480mm
Stack	563mm	572mm	602mm	602mm	611mm	630mm	630mm
Additional Info	• XS/SM have 27.5" wheels; MD-XXL have 29" wheels • All specifications listed are with 100mm travel fork with 42mm offset

Wheel Size

27.5" (650b)

29"

Frame Material

Aluminum

Frame Material Details

Alpha Silver Aluminum, molded chainstay protection

Rear Travel

Hardtail

Rear Shock

None

Fork

RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 30mm stanchions, 42mm (XS/SM) or 46mm (MD-XXL) offset

Fork Travel

100mm

Head Tube Diameter

Straight, 1.125"

Headset

Semi-integrated

Handlebar

Bontrager, alloy, 31.8mm clamp diameter
XS: 690mm width, 5mm rise; SM: 720mm width, 15mm rise; MD-XXL: 750mm width, 15mm rise

Stem

Bontrager Comp, 7° rise, 31.8mm bar clamp
Length: 35mm (XS/SM), 50mm (MD-LG), 60mm (XL), 70mm (XXL)

Grips

Trek Line Comp, nylon lock-on

Brakes

Shimano Deore MT200, 2-piston
Rotors: Shimano RT26, 6-bolt, 160mm (XS/SM) or 180mm (MD-XXL) front, 160mm rear (all sizes)

Brake Levers

Shimano Deore MT200

Drivetrain

Shifters

SRAM SX Eagle, 12-speed

Front Derailleur

None

Rear Derailleur

SRAM NX Eagle, 12-speed

ISCG Tabs

None

Chainguide

None

Cranks

SRAM SX Eagle Alloy
Length: 170mm (XS-MD), 175mm (ML-XXL)

Chainrings

SRAM SX Eagle, steel, 30 tooth

Bottom Bracket

TruVativ Powerspline, 73mm English/BSA threaded

Pedals

VP Components VP-536 nylon platform

Chain

SRAM SX Eagle, 12-speed

Cassette

SRAM SX Eagle PG-1210, 12-speed, 11-50 tooth

Rims

Bontrager Kovee, double-wall alloy, 23mm width, 28 hole front, 28 (XS/SM) or 32 (MD-XXL) hole rear, tubeless ready (Bontrager TLR rims strips included)

Hubs

Formula alloy, DC-20 LW 5mm x 100mm quick release front, DC-22LW 5mm x 135mm quick release rear with HG driver

Spokes

Tires

Maxxis Rekon, EXO casing, 60 TPI, TR, 2.4"

Saddle

Bontrager Verse Short, stainless steel rails

Seatpost

TranzX JD-YSI34 dropper
Drop: 100mm (XS/SM), 125mm (MD), 150mm (ML/LG), 170mm (XL/XXL)

Seatpost Diameter

31.6mm

Seatpost Clamp

Single bolt

Rear Dropout / Hub Dimensions

5mm x 135mm ThruSkew quick release

Max. Tire Size

2.4"

Bottle Cage Mounts

Two inside front triangle

Colors

Matte Dark Web/Clear Gloss, Magic Mint, Fury Red Fade

Warranty

Lifetime frame, 2 years Trek/Bontrager parts and paint/decals

Weight

31 lb 3.1 oz (14150 g)

Miscellaneous

• XS/SM have 27.5" wheels; MD-XXL have 29" wheels
• Internal cable routing
• Rack and kickstand mounts
• Weight listed for size MD

Price

$1,399.99

More Info

Trek website

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Free shipping on orders over $69 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
Free U.S. shipping on everything. International shipping available. Some exclusions apply.	Browse available Bikes
Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes