2027 Latest Epic 9 Full Carbon Frame Premium T1200 Carbon Fiber Mountain Bike Suspension Frame Boost 148x12mm BSA

Build a lightweight and responsive custom mountain bike with the MRC-027 29er Carbon MTB Frame Set. Manufactured using Toray T1200 mixed carbon fibre, this hardtail frame is designed for 29-inch wheels, Boost rear-hub spacing, and modern mountain-bike components.

The frame is available in small, medium, and large sizes, with matte, glossy, painted, and customized colour options. Its threaded BSA bottom bracket supports straightforward installation and maintenance, while the tapered head tube provides compatibility with suitable modern suspension forks.

The complete frame set includes the frame, seatpost, seat clamp, headset, rear axle, and derailleur hanger.

Key Features

• Lightweight 29er carbon mountain-bike frame

• Toray T1200 mixed carbon-fibre construction

• Available in small, medium, and large sizes

• Boost 148 × 12 mm rear axle spacing

• Tapered head tube

• BSA 73 mm threaded bottom bracket

• 30.9 mm seatpost diameter

• Disc-brake compatible

• Matte, glossy, painted, and custom finishes available

• Frame-set components included

• Suitable for custom MTB builds

• Non-folding frame design

Product Specifications

• Brand: Confirm Before Publishing

• Model: MRC-027

• Product Type: Carbon Mountain Bike Frame Set

• Frame Style: 29er Hardtail MTB Frame

• Frame Material: Toray T1200 Mixed Carbon Fibre

• Available Sizes: S, M, and L

• Wheel Compatibility: 29-Inch Wheels

• Rear Hub Standard: Boost 148 × 12 mm

• Rear Axle: Included

• Headset Standard: Tapered

• Upper Headset Diameter: 1-1/8 Inch / 41.8 mm

• Lower Headset Diameter: 1-1/2 Inch / 52 mm

• Bottom Bracket: BSA 73 mm Threaded

• Bottom-Bracket Thread: 1.37 × 24 TPI

• Seatpost Diameter: 30.9 mm

• Brake Type: Disc Brake

• Brake Mount Standard: Confirm Before Publishing

• Surface Finish: UD Black Matte or Glossy

• Colour Options: Black, Painted, or Customized

• Foldable: No

• Customization: Available

• Country of Origin: Taiwan, China

• Warranty: Confirm as 24 Months or 3 Years

Frame Weight

Approximate frame weights are:

• Small: 1750 g ± 50 g

• Medium: 1790 g ± 50 g

• Large: 1830 g ± 50 g

Actual weight may vary depending on frame size, paint finish, hardware, and production tolerance.

Included Frame-Set Components

The standard package includes:

• Carbon frame

• 30.9 mm seatpost

• Seatpost clamp

• Headset

• 148 × 12 mm rear thru-axle

• Rear derailleur hanger

The following components are not included unless separately selected:

• Suspension fork

• Wheels

• Tyres

• Brakes

• Crankset

• Bottom bracket

• Drivetrain

• Handlebar and stem

• Saddle

• Pedals

Tapered Head Tube

The tapered head tube uses an approximately 41.8 mm upper and 52 mm lower headset interface. This design supports compatible tapered-steerer suspension forks and helps provide precise front-end steering.

Confirm the required headset bearing and fork-crown specifications before installation.

Boost Rear-Hub Compatibility

The frame supports 148 × 12 mm Boost rear hubs. This wider spacing is commonly used on modern mountain bikes and may provide improved wheel stiffness and tyre clearance.

Only use a compatible 148 × 12 mm rear wheel and axle system.

BSA Threaded Bottom Bracket

The 73 mm threaded BSA bottom-bracket shell offers broad compatibility with suitable mountain-bike cranksets and threaded bottom brackets.

Confirm spindle length, chainline, crank standard, and drivetrain compatibility before assembly.

Brake Compatibility

The frame is designed for disc brakes. Before publishing or purchasing components, confirm:

• Frame brake-mount standard

• Compatible rotor diameter

• Required brake adapter

• Caliper clearance

• Rear-hub rotor interface

Central-lock and six-bolt refer to rotor and hub compatibility, not the frame’s brake-mount format.

Colour and Finish Options

Available finishes may include:

• UD black matte

• UD black glossy

• Custom paint

• Custom graphics

• Custom logo application

Customized products may require additional production time. Final colour and design should be approved before manufacturing.

Suitable Applications

The MRC-027 may be suitable for:

• Cross-country mountain-bike builds

• Recreational trail riding

• Gravel and countryside routes

• Fitness cycling

• Lightweight custom bicycle projects

• General 29er MTB use

The final intended use depends on the installed fork, wheels, brakes, drivetrain, rider weight, and assembly quality.

Assembly Information

Carbon bicycle frames should be assembled by an experienced bicycle technician. Correct torque settings, carbon-compatible assembly paste, and suitable components are essential.

Before the first ride, inspect:

• Headset installation

• Bottom-bracket installation

• Rear axle

• Derailleur hanger

• Seatpost insertion

• Brake alignment

• Frame surface

• All fastener torque settings

Important Usage Information

Do not exceed the verified rider and system weight limit. Avoid installing incompatible components or modifying the frame.

Crashes, incorrect assembly, excessive torque, incompatible components, or structural modification may void the warranty.