M038 Carbon 29er Boost MTB Frame

29” MTB Frame

  • With UDH hanger, 148x12mm boost thru-axle—ideal for aggressive XC and trail riding.
  • Supports up to 36T crankset and max 29er x 2.4” MTB tires for superior traction and climbing efficiency.
  • Lightweight carbon fiber construction with modern MTB geometry, perfect for enduro, trail, or all-mountain setups.
  • Size guide :
    XS=15” (150-168CM), S=17”(168-180CM), M=18.5” (180-190CM), L=20”(190-200CM)

Model NO.: M038
Rear derailleur hanger: UDH Hanger
Size: 29er* XS/S/M/L (15/17/18.5/20”)
Material: T800+T1000 carbon fiber
Headset: 1 1/8″- 1 1/2″
Max Tire: 29er*2.4″
SeatPost: Φ31.6mm

Brake Rotor: 160mm
Cable : All Internal Cable
Bottom Bracket: BB92
Rear Spacing: 148*12mm
Weight: 1050+/-50g (17”) This is the weight of matte black frame, excluding metal accessories.

Crankset: Chainline 55mm, Max chainring 36T
Seatpost: 31.6mm, support dropper seatpost
Includes: frame*1+headset*1+seatpost clamp*1+thru axle shaft*1+chain protector cover*1

 1 1/8″- 1 1/2″ Headtube  

  • Tapered head tube (1 1/8″–1 1/2″) enhances front-end stiffness by up to 30%, improving steering precision and downhill control—essential for aggressive trail riding and carbon MTB frame durability.

31.6mm Seat Post MTB Bicycle Frame

  • The 31.6mm seatpost diameter offers optimal balance between strength and dropper post compatibility, increasing frame support and rider stability.

For Max 29er x 2.4″ Tires

  • Max tire clearance 29er x 2.4″ allows for high-volume MTB tires, boosting traction and control on technical climbs and descents.

BB92 Bottom Bracket

  • It enhances power transfer with a wider shell and press-fit design, increasing pedaling stiffness and drivetrain efficiency—ideal for carbon MTB frame performance.

148x12mm Rear Racing

  • Rear Boost spacing (148x12mm) increases wheel stiffness and improves chainline, enhancing pedaling efficiency and rear-end stability on rough terrain—key for modern trail geometry.

Haidelibikes Factory

  • Lead Time: Efficient production and on-time deliver.
  • Custom Painting: Yes, fully customizable designs.
  • OEM & ODM: Welcome-your brand, our support.
  • MOQ: Starting from just 5 sets.
  • Sample Policy: Samples available on request.

Advanced Production Facilities 

  • ISO-certified testing lab ensuring compliance with global standards.
  • Exclusive Infrared Detection System – Our proprietary technology for internal defect inspection, ensuring every frame meets the highest safety and durability standards.

Manufacturing Techniques

  • Blow molding: for lightweight frames and high-strength frame structures.
  • EPS/latex molding: ensures precision interiors shaping.

Full-Service Capabilities–One-Stop Solution

  • Design → Prototyping → Mass production → Custom Painting
  • Masterful Painting Craftsmanship–Our expert painters, with 10+ years of experience, deliver flawless custom finishes, ensuring both durability and aesthetic excellence.