Trek Marlin 7 Gen 3

Marlin 7 is your best friend on the trail and wherever else you roll thanks to its confidence-boosting trail geometry. It finds the perfect balance between price and performance with an upgraded RockShox suspension fork that makes quick work of rocks and bumps in your path, and the huge gearing range of a SRAM 12-speed SX Eagle drivetrain.

• Marlin Gen 3 gives you serious trail capability, with big tire clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city
• Its upgraded RockShox fork gives you 100mm of suspension for turning rocks and roots in the trail into smooth-sailing
• Fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
• Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending
• Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount

Will my bike have a curved top tube?

Smaller frames have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frame sizes have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Fit for every rider

Marlin comes in seven frame sizes to suit riders of any height, and Smart Wheel Size ensures you’re on the fastest wheel that fits. The smallest sizes even come with short-reach brake levers and narrower handlebars that give smaller riders better comfort and control.

High tech, high value

Marlin looks and feels great. It’s packed with features usually found only on more expensive bikes, like a stylish frame with internal shift cable and brake hose routing, which can help your cables last longer by protecting them from the elements.

Upgrade your pedals and love your bike more

Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.

Frame	Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
Fork	RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel
Tire	Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 27.5x2.40''
Hub Front	Formula DC-20 LW, alloy, 6-bolt, 100x5mm
Hub Rear	Formula DC-22LW, 6-bolt, Shimano 8/9/10 freehub, 135x5mm
Rim	Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve
Skewer Rear	173x5mm QR
Shifter	SRAM SX Eagle, 12 speed
Rear Derailleur	SRAM SX Eagle, 12 speed
Crank	SRAM SX Eagle, 30T steel ring, 49mm chainline, 170mm length
Bottom Bracket	Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle
Cassette	SRAM PG-1210 Eagle, 11-50, 12 speed
Chain	SRAM SX Eagle, 12 speed
Brake Rotor	Shimano RT26, 6-bolt, 160mm
Pedal	VP-536 nylon platform
Saddle	Bontrager Verse Short, stainless steel rails
Seatpost	TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
Handlebar	Bontrager alloy, 31.8mm, 5mm rise, 690mm width
Stem	Bontrager Comp, 31.8mm, 7 degree, 35mm length
Headset	Semi-integrated, 1-1/8''
Grips	Bontrager XR Trail Comp, nylon lock-on // Bontrager XR Trail Comp, nylon lock-on

Geometry Chart

B B Drop	4.5
B B Height	31.3
Chainstay Length	43.3
Eff Seat Tube Angle	74.0°
Eff Top Tube	55.1
Frame Reach	39
Frame Size Letter	XS
Frame Size Number	14.5"
Frame Stack	56.3
Head Angle	66.5°
Head Tube Length	9
Offset	4.2
Seat Tube	34
Seat Tube Angle	73.8°
Standover	65.8
Trail	11
Wheelbase	109.2
Wheel Size	27.5"