27.5" Superlight Carbon MTB Rim, 30mm Inner, 370g – Bola

Explore the Features of the 27.5 Superlight Carbon MTB Rim

Optimized for trail, cyclocross, and all mountain riding, the Bola 27.5er carbon rim offers a 30mm inner width and a superlight 370g (±10g) build. Engineered with a U-channel profile and 30mm height, it's suitable for tubeless setups (45–65 psi, max rider weight 100kg). Widely specified by competitive teams seeking stability and traction with 2.25"–2.6" MTB or 35–42mm cyclocross tires.

Key Specifications

• Material: High-modulus carbon fiber (T700/T800 equivalent)
• Weight (Superlight): 370g ±10g
• Inner Width: 30mm
• Outer Width: 36mm
• Height: 30mm (U-shape, hookless-compatible)
• Effective Rim Diameter (ERD): 540mm
• Compressive Strength: >300kg; Lateral Torsion: >50kg
• Brake Type: Disc-specific
• Warranty: 3 years (manufacturing defects)

Specification Comparison

FAQs

• Q: Is a 30mm inner width suitable for cyclocross?
  A: Yes. A 30mm inner width supports 35–42mm cyclocross tires, providing improved contact for traction without exceeding UCI limits.
• Q: Which tires are compatible?
  A: Fits 27.5" (650b) tubeless or clincher tires 2.25"–2.6"; cyclocross tires 35–42mm.
• Q: What is the recommended max rider weight?
  A: Up to 100kg per manufacturer test standards.
• Q: How does 30mm width affect tire shape?
  A: It increases tire air volume for better traction and stability on loose or off-camber terrain.

Certifications & Testing

• Material Test: ISO4210, EN14766
• QC: 100% ultrasound & dynamic stress tested

Ultra-Lightweight Design for Peak Performance

The 27.5 superlight carbon MTB rim by Bola delivers unmatched weight efficiency at just 370 grams. This lightweight design greatly reduces the rotational mass of your mountain bike, enhancing acceleration and handling on challenging terrain. Crafted from premium carbon fibers, the rim ensures strength without sacrificing weight advantages. Cyclists seeking speed and responsiveness benefit from this innovative build, making it ideal for cross-country and trail riding where every gram counts. The combination of lightweight and durability positions the rim as a top choice for riders demanding peak performance.

Optimal 30mm Inner Width for Tire Compatibility

Featuring a 30mm inner width, this 27.5 superlight carbon MTB rim provides excellent tire support and stability. The wider rim profile helps maintain tire shape under pressure, improving traction and cornering control on rocky or loose surfaces. Riders can confidently mount a variety of tire widths, optimizing grip and comfort without compromising speed. This flexible sizing enhances the riding experience by balancing agility with increased contact patch, making it suitable for diverse trail conditions and riding styles.

Durability and Strength You Can Trust

Despite its light weight, the Bola 27.5 superlight carbon MTB rim offers robust durability needed for rough mountain trails. The carbon construction is engineered for high impact resistance and fatigue strength, withstanding the demands of aggressive riding. Advanced resin systems and precise carbon layup techniques ensure the rim maintains its integrity over long-term use. This reliability allows riders to push harder on technical descents and jumps without worrying about rim failure, combining confidence and performance in one superior component.