Marlin 7 Gen 3
OverviewAbout the Trek Marlin 7 Gen 3
The Trek Marlin 7 Gen 3 is a mountain bike, built on a aluminium frame, listed at $1,499.99. An off-road bike for trails, with grippy tyres and trail-ready geometry.
SizingWhat size Marlin 7 Gen 3 do I need?
Enter your height to see the size Trek recommends.
| Size | Rider height | In feet | Inseam |
|---|---|---|---|
| XS | 145 to 155 cm | 4 ft 9 in to 5 ft 1 in | 69 to 73 cm |
| S | 155 to 165 cm | 5 ft 1 in to 5 ft 5 in | 74 to 78 cm |
| M | 165 to 177 cm | 5 ft 5 in to 5 ft 10 in | 79 to 83 cm |
| ML | 173 to 180 cm | 5 ft 8 in to 5 ft 11 in | 81 to 86 cm |
| L | 177 to 188 cm | 5 ft 10 in to 6 ft 2 in | 84 to 89 cm |
| XL | 188 to 195 cm | 6 ft 2 in to 6 ft 5 in | 89 to 91 cm |
| 2XL | 195 to 203 cm | 6 ft 5 in to 6 ft 8 in | 91 to 97 cm |
Rider heights from Trek's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
- Brand
- Trek
- Category
- Mountain
- Frame
- Aluminium
- Brakes
- Disc
- Frame sizes
- XS, S, M, ML, L, XL, 2XL
- Price
- $1,499.99, RRP AUD (Drift Bikes)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize M
- Stack
- 609 mm
- Reach
- 440 mm
- Stack/reach
- 1.38
- Head angle
- 66.5 deg
- Seat angle
- 73.4 deg
- Wheelbase
- 1163 mm
- Chainstay
- 438 mm
- BB drop
- 60 mm
- Standover
- 747 mm
- Fork rake
- 46 mm
GearingRatios
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
- Groupset
- SRAM SX/NX Eagle
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 12
- Crank
- SRAM SX Eagle, 170mm
- Chainrings
- 30
- Cassette
- 11-50
- Brakes
- Shimano MT200 hydraulic disc
- Rotors
- 180/160mm
- Wheelset
- Bontrager Kovee, Tubeless Ready
- Stock tyre
- 29x2.40
- Max tyre clearance
- 61 mm
- Fork material
- Aluminium (Alpha Silver)
SuspensionMTB detail
- Front travel
- 100 mm
- Fork
- RockShox Judy Silver
- Fork stanchions
- 30 mm
- Wheel config
- 29
- Dropper
- TranzX JD-YSP18, 130mm travel
- Discipline
- XC
- Suspension
- hardtail
Bike DNAWhat the numbers say
- Steering
- A 66.5 deg head angle points to balanced trail handling.
- Climbing
- Lowest ratio 0.6 is a very low climbing gear for steep or loaded climbs.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (Trek geometry chart + retailer spec sheets + backfill 2026-09-27: 99spokes.com), verified 2026-09-03. This is a specification analysis, not a physical ride review.
Where to buyStockist
BikeFinder is an independent directory. We link to retailers; the price shown is last seen and set by the seller.
