MARLIN 5 M/L BLK GEN 3
The Trek Marlin 5 Gen 3 M/L Black is a versatile hardtail mountain bike designed for trail riding, fitness cycling, commuting, and everyday adventure. The Gen 3 redesign introduced more modern trail geometry, improved stability, and upgraded component integration, making the Marlin 5 one of Trek’s most capable and confidence-inspiring entry-level mountain bikes.
Key Description
The Marlin 5 Gen 3 is built for riders who want:
- A capable beginner-friendly mountain bike
- Stable and confidence-inspiring trail handling
- Versatility for trails, bike paths, and commuting
- Reliable hydraulic disc brakes
- Modern geometry for improved control
- Durable aluminum hardtail performance
Compared with previous Marlin generations, the Gen 3 platform features slacker geometry and improved trail capability while remaining approachable and efficient for everyday riding.
The Black colorway gives the bike a sleek and aggressive trail-bike appearance with a clean modern aesthetic.
Key highlights include:
- Alpha Silver Aluminum frame
- RockShox suspension fork
- Shimano CUES 9-speed drivetrain
- Hydraulic disc brakes
- Internal cable routing
- Rack and kickstand compatibility
- Modern trail-inspired geometry
Main Specs
| Component | Specification |
|---|---|
| Frame | Alpha Silver Aluminum Gen 3 |
| Fork | RockShox Judy, 100mm travel |
| Drivetrain | Shimano CUES U4000 |
| Speeds | 1x9 |
| Shifters | Shimano CUES U4000 |
| Rear Derailleur | Shimano CUES U4000 |
| Cassette | Shimano LINKGLIDE 11-46 |
| Crankset | Forged alloy 30T |
| Brakes | Shimano hydraulic disc brakes |
| Rotors | 180mm front / 160mm rear |
| Wheels | Bontrager Connection |
| Tires | Bontrager XT3 Comp 29x2.40" |
| Tire Clearance | Up to 2.5" |
| Handlebar | Bontrager alloy MTB bar |
| Stem | Bontrager alloy |
| Saddle | Bontrager Arvada |
| Seatpost | Bontrager alloy |
| Frame Size | Medium/Large |
| Color | Black |
| Weight | Approx. 31 lbs / 14.1 kg |
| Wheel Size | 29" |
Features & Highlights
- Updated Gen 3 geometry improves trail stability and rider confidence
- RockShox suspension fork smooths rough terrain and trail chatter
- Shimano CUES drivetrain provides durable and reliable shifting
- Hydraulic disc brakes offer strong stopping power in all conditions
- Internal cable routing gives the bike a clean modern appearance
- Rack and kickstand mounts increase commuting and everyday versatility
- Wide tires improve traction, comfort, and control on mixed terrain
Medium/Large Size Fit
The Medium/Large frame generally fits riders approximately:
- 5'8"–5'11"
The geometry is designed to feel:
- Stable on trails
- Comfortable for longer rides
- Confidence inspiring for beginner mountain bikers
- Efficient enough for commuting and recreational riding
Ride Feel
The Marlin 5 Gen 3 is known for:
- Stable and predictable trail handling
- Comfortable riding position
- Smooth suspension performance
- Excellent versatility for mixed riding
- Confidence inspiring off-road capability
Compared with older cross-country-oriented hardtails, the Gen 3 Marlin feels more capable and modern on trails while still remaining approachable and efficient for everyday use.
Ideal Rider
This bike is ideal for:
- Beginner mountain bikers
- Recreational trail riders
- Fitness riders
- Riders wanting one versatile bike
- Commuters who occasionally ride trails
- Riders upgrading from department-store mountain bikes
Complete Your Ride
Everything You Need for the Road
Gear matched to your bike — safety, comfort, and convenience.

Helmet
Bontrager Solstice MIPS Helmet — S/M (Matte Black)
$74.99
Add to Cart →
Grips
Bontrager XR Trail Comp MTB Grip
$19.99
Add to Cart →
Bell
BELL ELECTRA BLK
$14.99
Add to Cart →
Gloves
GLOVE SOL MED BLK BNT
$32.99
Add to Cart →
Lights
FREEWHEELER VISION LIGHT SET FRONT AND REAR
$19.99
Add to Cart →
Water Bottle
FBC WATER BOTTLE 26OZ
$10.99
Add to Cart →