• 27.5" Superlight Carbon MTB Rim set, 34mm inner width, 30mm height, designed for XC and trail use, featuring UCI logo and war
  • Bola 27.5 inch carbon MTB rim side profile showing hookless bead and 34mm internal width
  • Hookless rim detail of Bola 27.5 carbon MTB rim, optimized for tubeless tires, XC and trail
  • 27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High – XC/Trail Carbon Fiber Sporting Goods
  • 27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High – XC/Trail Carbon Fiber Sporting Goods
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Carbon Fiber Sporting Goods

27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High – XC/Trail

27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High – XC/Trail

$310.00 USD
$300.00 USD $310.00 USD
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27.5" Carbon MTB Rim – 34mm Inner, 30mm High, 390g

Direct Answer: This 27.5-inch carbon MTB rim is engineered for cross-country (XC) racing and all-mountain trail riding, offering a superlight 390g ±10g verified weight, 34mm wide inner channel, and 30mm rim height for optimal performance, lateral rigidity, and tire support.

Key Features

  • Material: High-strength carbon fiber
  • Verified Weight: 390g ±10g (superlight) | Alternative: 440g ±15g (standard)
  • Rim Dimensions: 27.5 inch (650B) | 34mm inner width | 40mm outer width | 30mm rim height
  • Profile: Hookless, U-shape rim compatible with modern tubeless mountain bike tires
  • Strength: >300kg forward compressive strength, >50kg lateral torsion resistance
  • Design Purpose: Cross-country, endurance, and technical all-mountain trail use
  • ERD: 540mm
  • Spoke Hole Tension: >280kg
  • Dynamic Equilibrium: <3g imbalance

Comparison: 30mm vs. 25mm High Carbon Rims

Attribute 30mm High (this rim) 25mm High
Weight 390g (superlight) Typically 380-410g
Strength Higher lateral/torsional stiffness Lower stiffness, more flex
Ideal Use All-mountain, aggressive XC XC, less technical terrain

FAQ

  • Q: Is a 34mm inner width rim suitable for 2.3"–2.6" MTB tires?
    A: Yes, the 34mm width provides optimal support for 2.3–2.6 inch mountain bike tires, balancing sidewall support and volume.
  • Q: What is the advantage of a superlight 390g rim?
    A: Lower rotational weight improves acceleration and climbing, supporting endurance and race applications, while the structural design maintains stability.
  • Q: How does hookless rim design affect tubeless setup?
    A: Hookless rims facilitate tubeless tire installation, reduce pinch flats, and are compatible with most modern MTB tires when appropriate pressure limits are observed.
  • Q: Certified/tested for quality?
    A: All Bola rims undergo stringent quality control and destructive testing according to ISO4210-7:2014(E) standards.
  • Q: Warranty details?
    A: 3-year limited warranty against manufacturing defects.

Buyer Guidance

  • Ideal for brands, teams, and cyclists seeking customizable, lightweight, high-performance carbon rims for XC racing, trail, and technical all-mountain terrain.
  • Not recommended for gravity/enduro disciplines requiring heavier rim profiles (>500g).

 

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