Trek Marlin 7 Gen 3
Details
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.
It's right for you if...
You want a go-anywhere trail bike that's got upgrades where it matters most, but won't break the bank. You want to build skills on the trail, and need a bike with confidence-inspiring geometry and upgraded components that can keep up with your progress.
The tech you get
A lightweight aluminum frame with modern trail riding geometry and internal routing that keeps cables protected and the bike looking sleek. An upgraded RockShox suspension fork smooths out rowdy trails, 12-speed SRAM SX Eagle shifting, and the serious stopping power of hydraulic disc brakes.
The final word
Marlin 7 is the go-to trail bike for those wanting to build skills on the singletrack and get the right bang for their buck with upgraded suspension and confidence-inspiring geometry.
Why you'll love it
- 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
- Rack and 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
- Sizes X-Small – Small: 27.5-inch
- Sizes Medium – X-Large: 29-inch
| Frame size number | 14.5" | 15.5" | 17.5" | 18.5" | 19.5" | 21.5" |
|---|---|---|---|---|---|---|
| Frame size letter | XS | S | M | ML | L | XL |
| Wheel size | 27.5" | 27.5" | 29" | 29" | 29" | 29" |
| A — Seat tube | 34 | 37 | 42 | 43.5 | 45 | 50 |
| B — Seat tube angle | 73.8° | 73.8° | 73.4° | 73.4° | 73.4° | 73.4° |
| Effective seat tube angle | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° |
| C — Head tube length | 9 | 10 | 10.5 | 11 | 11.5 | 13.5 |
| D — Head angle | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° |
| E — Effective top tube | 55.1 | 57.9 | 61.5 | 63.1 | 64.7 | 67.8 |
| F — Bottom bracket height | 31.3 | 31.3 | 30.8 | 30.8 | 30.8 | 30.8 |
| G — Bottom bracket drop | 4.5 | 4.5 | 6 | 6 | 6 | 6 |
| H — Chainstay length | 43.3 | 43.3 | 43.8 | 43.8 | 43.8 | 43.8 |
| I — Offset | 4.2 | 4.2 | 4.6 | 4.6 | 4.6 | 4.6 |
| J — Trail | 11 | 11 | 11 | 11 | 11 | 11 |
| K — Wheelbase | 109.2 | 112.1 | 116.3 | 118 | 119.7 | 123 |
| L — Standover | 65.8 | 69.2 | 74.7 | 75.9 | 77.1 | 79.1 |
| M — Frame reach | 39 | 41.5 | 44 | 45.5 | 47 | 49.5 |
| N — Frame stack | 56.3 | 57.2 | 60.9 | 61.4 | 61.8 | 63.7 |
| Frame size number | 14.5" | 15.5" | 17.5" | 18.5" | 19.5" | 21.5" |
|---|---|---|---|---|---|---|
| Frame size letter | XS | S | M | ML | L | XL |
| Wheel size | 27.5" | 27.5" | 29" | 29" | 29" | 29" |
| A — Seat tube | 34 | 37 | 42 | 43.5 | 45 | 50 |
| B — Seat tube angle | 73.8° | 73.8° | 73.4° | 73.4° | 73.4° | 73.4° |
| Effective seat tube angle | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° |
| C — Head tube length | 9 | 10 | 10.5 | 11 | 11.5 | 13.5 |
| D — Head angle | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° |
| E — Effective top tube | 55.1 | 57.9 | 61.5 | 63.1 | 64.7 | 67.8 |
| F — Bottom bracket height | 31.3 | 31.3 | 30.8 | 30.8 | 30.8 | 30.8 |
| G — Bottom bracket drop | 4.5 | 4.5 | 6 | 6 | 6 | 6 |
| H — Chainstay length | 43.3 | 43.3 | 43.8 | 43.8 | 43.8 | 43.8 |
| I — Offset | 4.2 | 4.2 | 4.6 | 4.6 | 4.6 | 4.6 |
| J — Trail | 11 | 11 | 11 | 11 | 11 | 11 |
| K — Wheelbase | 109.2 | 112.1 | 116.3 | 118 | 119.7 | 123 |
| L — Standover | 65.8 | 69.2 | 74.7 | 75.9 | 77.1 | 79.1 |
| M — Frame reach | 39 | 41.5 | 44 | 45.5 | 47 | 49.5 |
| N — Frame stack | 56.3 | 57.2 | 60.9 | 61.4 | 61.8 | 63.7 |
Specs
| Pedals | VP-536 nylon platform |
|---|---|
| Fork |
Size: XXS RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel Size: XS , S RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel Size: M , ML , L , XL , XXL RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 46mm offset for 29'' wheel, 100mm QR, 100mm travel |
| Hubs |
Front: Formula DC-20 LW, alloy, 6-bolt, 5x100mm QR Formula DC-22LW, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR |
| Rims | Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve |
| Stem |
Size: XXS , XS , S Bontrager Comp, 31.8mm, 7 degree, 35mm length Size: M , ML , L Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length Size: XL Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length Size: XXL Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length |
| Chain | SRAM SX Eagle, 12 speed |
| Frame |
Size: XXS , XS Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew Size: S , M , ML , L , XL , XXL Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew |
| Tires |
Size: XXS Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 26x2.40'' Size: XS , S Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 27.5x2.40'' Size: M , ML , L , XL , XXL Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 29x2.40'' |
| Brakes | Shimano MT200 hydraulic disc |
| Rotors |
Size: XXS , XS , S , M , ML , L , XL , XXL Shimano RT26, 6-bolt,160mm Size: M , ML , L , XL , XXL Shimano RT26, 6-bolt,180mm |
| Saddle | Bontrager Verse Short, stainless steel rails |
| Headset | Semi-integrated, 1-1/8'' |
| Crankset |
Size: XXS SRAM SX Eagle, 30T steel ring, 49mm chainline, 155mm length Size: XS , S , M SRAM SX Eagle, 30T steel ring, 49mm chainline, 170mm length Size: ML , L , XL , XXL SRAM SX Eagle, 30T steel ring, 49mm chainline, 175mm length |
| Seatpost |
Size: XXS , XS , S TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length Size: M TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length Size: ML , L , XL , XXL TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length |
| Shifters | SRAM SX Eagle, 12 speed |
| Handlebars |
Size: XXS , XS Bontrager alloy, 31.8mm, 5mm rise, 690mm width Size: S Bontrager alloy, 31.8mm, 15mm rise, 720mm width Size: M , ML , L , XL , XXL Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
| Tape/Grips | Bontrager XR Trail Comp, nylon lock-on |
| Bottom Bracket | Truvativ Powerspline, 73mm, threaded cartridge, 118mm spindle |
| Rear Derailleur | SRAM SX Eagle |
| Cassette/Freewheel | SRAM PG-1210 Eagle, 11-50, 12 speed |
* Subject to change without notice.
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| Pennyflake / Medium / 29-inch | 601479192724 | 5295489 | |
| Keswick / Large / 29-inch | 601479192441 | 5295475 | |
| Crystal White / Large / 29-inch | 601479192540 | 5295483 | |
| Keswick / Small / 27.5-inch | 601479192847 | 5295472 | |
| Keswick / Medium / 29-inch | 601479192786 | 5295473 | MAR215988763 |
| Pennyflake / Small / 27.5-inch | 601479192687 | 5295488 | |
| Pennyflake / Large / 29-inch | 601479212941 | 5295491 | |
| Pennyflake / X-Large / 29-inch | 601479212668 | 5295492 | |
| Crystal White / Medium/Large / 29-inch | 601479192427 | 5295482 | |
| Keswick / X-Small / 27.5-inch | 601479192489 | 5295471 | |
| Crystal White / X-Large / 29-inch | 601479192588 | 5295484 | |
| Pennyflake / Medium/Large / 29-inch | 601479212521 | 5295490 | MAR253064663 |
| Keswick / X-Large / 29-inch | 601479192625 | 5295476 | |
| Keswick / Medium/Large / 29-inch | 601479192601 | 5295474 | |
| Pennyflake / X-Small / 27.5-inch | 601479192885 | 5295487 |