Trek Fuel EX Project One 29 MTB Frameset, Carbon, M, MY 2023 Gen 6

The Trek Fuel EX Project One Gen 6 frameset is a lightweight, modern trail platform built for riders who want to create a fully custom bike around Trek’s versatile Fuel EX chassis. Constructed from Trek’s premium OCLV Mountain Carbon, this frame is engineered to balance stiffness, compliance, and trail capability, with progressive geometry that adds confidence on descents while maintaining strong pedaling efficiency on climbs.

Designed around 140mm of rear travel, the Fuel EX Gen 6 features Trek’s proven ABP suspension design, adjustable geometry, adjustable leverage rate, and internal downtube storage for a clean and capable trail build. Guided internal routing, a magnesium rocker link, and integrated frame protection round out a frameset made for aggressive everyday trail riding.

This Project One version is offered as a bare frameset only and is ideal for riders planning a fully custom build. No rear shock, headset, axle, hardware kits, or other small parts are included. Only the items shown in the photos are included.

When assembled by an authorized Trek dealer, this frameset is eligible for Trek’s full manufacturer warranty. Because compatibility can vary depending on your intended build, Trek recommends working with a local Trek dealer to select the proper components.

Product Specifications

Frameset

• Frame: Trek Fuel EX Project One Gen 6, OCLV Mountain Carbon

• Rear Travel: 140mm

• Rear Shock Size: 185 x 55mm not included

• Suspension Design: ABP suspension platform

• Geometry Features: Angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate

• Storage: Internal downtube storage

• Routing: Guided internal cable routing

• Rocker Link: Magnesium

• Frame Protection: Downtube guard, shuttle guard

• Seat Tube Diameter: 34.9mm

• Bottom Bracket: BSA 73 threaded

• Chainline: 55mm

• ISCG: ISCG 05

• Rear Axle Standard: Boost 148

• UDH Compatible: Yes

Compatibility

• Max Tire Size

  • Frame: 29 x 2.50"

  • XS and S: 27.5 x 2.50"

  • Fork: Refer to fork manufacturer

• Max Chainring Size

  • 1x: 34T round, 32T oval

  • Minimum: 28T

• Max Brake Rotor Size

  • Frame: 203mm

  • Fork: Refer to fork manufacturer

Sizing Chart

• XS

  • Rider Height: 145 - 155 cm / 4'9" - 5'1"

  • Inseam: 69 - 73 cm / 27" - 29"

• S

  • Rider Height: 155 - 165 cm / 5'1" - 5'5"

  • Inseam: 74 - 78 cm / 29" - 31"

• M

  • Rider Height: 165 - 177 cm / 5'5" - 5'10"

  • Inseam: 79 - 83 cm / 31" - 33"

• ML

  • Rider Height: 173 - 180 cm / 5'8" - 5'11"

  • Inseam: 81 - 86 cm / 32" - 34"

• L

  • Rider Height: 177 - 188 cm / 5'10" - 6'2"

  • Inseam: 84 - 89 cm / 33" - 35"

• XL

  • Rider Height: 188 - 195 cm / 6'2" - 6'5"

  • Inseam: 89 - 91 cm / 35" - 36"

Included

• Trek Fuel EX Project One Gen 6 carbon frame only

• Includes only what is shown in the photos

Not Included

• Rear shock

• Headset

• Axles

• Seatpost clamp

• Grommets

• Hardware kits

• Any additional small parts or accessories

Warranty and Notes

• Eligible for Trek’s full manufacturer warranty when assembled by an authorized Trek dealer

• Component compatibility varies by build configuration

• Trek strongly recommends consulting a local Trek dealer for proper part selection and setup