Bola 700c Carbon Tubeless Road Rim – 40mm Deep, 28mm Wide

Take a fast weekend group ride, a long training day, or a decisive climb and feel the difference a carefully engineered rim makes. The Bola 700c carbon tubeless rim combines a 40mm aero profile with a 28mm outer width to deliver a confident, stable ride when paired with modern road tires.

Its tubeless-ready bed and available hooked or hookless bead profiles let you tailor tire volume and pressure for the conditions you ride most, whether you prize low rolling resistance for racing or durability for everyday training.

Bola 700c Carbon Tubeless Road Rim - Designed for road, racing and climbing

The rim's U-shaped 40mm depth balances aerodynamic gains with crosswind stability, while the broad 28mm outer width optimizes tire integration for 28–32c and wider tires depending on the inner width choice. Multiple weight grades let you prioritize durability for high-mileage builds or minimize rotating mass for climbing and sprinting.

Why it fits your routine

• Tubeless-ready out of the box: No rim-tape conversion required; ideal for riders who want reliable tubeless seals and easier tire seating.
• Two bead options: Hooked 21mm inner width for broad tire compatibility (25c–32c) and hookless 23mm for larger volume and improved compliance with compatible tires (28c–35c).
• Wide aero profile: 28mm outer width creates a smoother aero transition with 28–32c tires, reducing drag from mismatched tire-rim junctions.
• Multiple weight grades: Choose Standard (425 ±15 g), Super Light (390 ±10 g), Ultra Light (365 ±10 g) or Extreme Light (345 ±10 g) to match training durability or race-focused builds.
• Strong structural ratings: Forward compressive strength >300 kg, lateral torsion resistance >50 kg, and spoke hole tension rating >280 kg for reliable wheel builds.
• Precision manufacturing: Dynamic equilibrium <3 g, flatness tolerance <0.15 mm and roundness tolerance <0.3 mm to ensure predictable handling and consistent truing.
• Customizable details: Valve hole, spoke hole and assembly hole diameters plus nipple angle options are available to suit specific build preferences.
• Pressure and load limits: Min/max tire pressure 100/125 psi per spec when using compatible setups; maximum rider weight 120 kg (264 lb).
• Hub and rotor compatibility: Compatible with standard road hub widths (100mm front / 130mm or 142mm rear) and supports center-lock or 6-bolt disc configurations when specified at build.

Design choices such as the hookless 23mm inner width provide greater air volume and compliance at lower pressures (recommended 72–87 psi with ETRTO-approved hookless tires), while the hooked 21mm option preserves compatibility with a wider range of clincher and tubeless tires for mixed-surface or higher-pressure applications. The rim's ERD of 558mm and customizable spoke/nipple specifications simplify wheel building to commonly used spoke lengths and components. Whether you prioritize aerodynamic integration, weight savings for climbing, or a robust platform for daily training, the Bola rim family offers graded options and structural metrics to match those goals.