Features /

3 Series is your weekend trail bike, your workday commuter, or both. Versatility, great suspension, smart spec… it's no wonder 3 Series is the world's best-selling mountain bike.

Upgrades from 3500 Disc

  • 100mm fork
  • Bontrager AT-650 double-walled rims
  • 24-speed drivetrain
  • Tektro M290 hydraulic disc brakes

Alpha Silver Aluminum

Trek’s durable, straight-gauge performance aluminum.

Rack & fender mounts

Built-in mounts make it easy to add racks and fenders for added versatility.

Extended size range

A wider range of sizes than the industry standard provides more option for everyone, from tallest to shortest and all those in between. Because everyone deserves a great ride.

26" wheels

The original 26" mountain bike wheel size is now the smallest of three available diameters. It’s the most flickable, most playful wheel size.

Trail Ready

Every Trail Ready frame is certified for off-road use.

Suspension fork

Shock-absorbing fork allows the front wheel to travel up and down over bumps while the handlebars stay steady, for a comfortable, controlled ride.