Trek Marlin 8 Gen 3
Details
Marlin 8 is a confidence-boosting trail bike with updated geometry that gives you more control on singletrack without skipping on features for everyday use like daily riding to school, work, and grocery shopping.
It's built for years of progress thanks to the premium wide range 1x12-speed SRAM SX Eagle drivetrain, serious stopping power of hydraulic disc brakes and an upgraded RockShox air spring suspension fork.
The air-spring RockShox fork is lighter and more adjustable than a coil spring.
The Marlin 8 Gen 3 also features a lightweight aluminum frame with modern trail riding geometry and internal routing that keeps cables protected and keep the bike looking sleek.
Integrated rack and kickstand mounts make it easy to add accessories to this versatile steed.
What you get over Marlin 7 Gen 3:
- 1x12-speed SRAM SX Eagle drivetrain
- RockShox air spring suspension fork
Wheel size:
- Size XX-Small: 26-inch
- Sizes X-Small – Small: 27.5-inch
- Sizes Medium – XX-Large: 29-inch
Due to supply-chain issues, Specs are subject to change without notice.
Full-length, full-coverage guards on the chainstay protect your frame and keep your ride quiet.
Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter.
A new Thru-Skew axle provides better rear wheel security, holding your wheel in place snugly and ensuring it doesn't slip out of the frame, even when you're rolling through rough-and-tumble terrain.
| Frame size number | 13.5" | 14.5" | 15.5" | 17.5" | 18.5" | 19.5" | 21.5" | 23.0" |
|---|---|---|---|---|---|---|---|---|
| Frame size letter | XXS | XS | S | M | ML | L | XL | XXL |
| Wheel size | 26" | 27.5" | 27.5" | 29" | 29" | 29" | 29" | 29" |
| A — Seat tube | 32 | 34 | 37 | 42 | 43.5 | 45 | 50 | 54 |
| B — Seat tube angle | 74.0° | 73.8° | 73.8° | 73.4° | 73.4° | 73.4° | 73.4° | 73.4° |
| Effective seat tube angle | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° |
| C — Head tube length | 9 | 9 | 10 | 10.5 | 11 | 11.5 | 13.5 | 15 |
| D — Head angle | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° |
| E — Effective top tube | 52.1 | 55.1 | 57.9 | 61.5 | 63.1 | 64.7 | 67.8 | 70.7 |
| F — Bottom bracket height | 30.2 | 31.3 | 31.3 | 30.8 | 30.8 | 30.8 | 30.8 | 30.8 |
| G — Bottom bracket drop | 3.8 | 4.5 | 4.5 | 6 | 6 | 6 | 6 | 6 |
| H — Chainstay length | 43.3 | 43.3 | 43.3 | 43.8 | 43.8 | 43.8 | 43.8 | 43.8 |
| I — Offset | 4 | 4.2 | 4.2 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 |
| J — Trail | 10.4 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| K — Wheelbase | 106 | 109.2 | 112.1 | 116.3 | 118 | 119.7 | 123 | 126.1 |
| L — Standover | 65 | 65.8 | 69.2 | 74.7 | 75.9 | 77.1 | 79.1 | 81.6 |
| M — Frame reach | 36.5 | 39 | 41.5 | 44 | 45.5 | 47 | 49.5 | 52 |
| N — Frame stack | 54.4 | 56.3 | 57.2 | 60.9 | 61.4 | 61.8 | 63.7 | 65.1 |
All measurements provided in cm unless otherwise noted.
| Size | Rider Height | Inseam |
|---|---|---|
| 2XS | 135 - 145 cm | 64 - 68 cm |
| 4'5" - 4'9" | 25" - 27" | |
| XS | 145 - 155 cm | 69 - 73 cm |
| 4'9" - 5'1" | 27" - 29" | |
| S | 155 - 165 cm | 74 - 78 cm |
| 5'1" - 5'5" | 29" - 31" | |
| M | 165 - 176 cm | 79 - 83 cm |
| 5'5" - 5'9" | 31" - 33" | |
| M/L | 173 - 180 cm | 81 - 86 cm |
| 5'8" - 5'11" | 32" - 34" | |
| L | 177 - 188 cm | 84 - 89 cm |
| 5'10" - 6'2" | 33" - 35" | |
| XL | 188 - 195 cm | 89 - 91 cm |
| 6'2" - 6'5" | 35" - 36" | |
| 2XL | 195 - 203 cm | 91 - 97 cm |
| 6'5" - 6'8" | 36" - 38" |
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 - 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 | Rear: 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 alloy, 31.8mm, Blendr compatible, 7 degree, 35mm length | Size: M , ML , L - Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length | Size: XL - Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm 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 - Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew |
| Tires | Size: XXS - Maxxis Ardent, tubeless, EXO casing, folding bead, 60tpi, 26x2.40'' | Size: XS , S- Maxxis Ardent, tubeless, EXO casing, folding bead, 60tpi, 27.5x2.40'' | Size: M , ML , L , XL- Maxxis Ardent, tubeless, EXO casing, folding bead, 60tpi, 29x2.40'' |
| Brakes | Shimano MT200 hydraulic disc |
| Rotors | Size: XXS , XS , S , M , ML , L , XL - Shimano RT26, 6-bolt,160mm | Size: M , ML , L , XL - Shimano RT26, 6-bolt,180mm |
| Saddle | Bontrager Arvada, steel rails, 138mm width |
| 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 - 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 - 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 - 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 |
|---|---|---|---|
| Crimson / Medium/Large / 29-inch | 601842864401 | 5277585 | BIK487127923 |
| Crimson / Large / 29-inch | 601842864395 | 5277586 | BIK487983493 |
