Bola ULT 50G 700C Carbon Gravel Disc Wheelset — 50mm Rim Depth, Tubeless Ready, 34–38mm External Width

The Bola ULT 50G 700C Carbon Disc Wheelset pairs Toray T800 unidirectional matte carbon construction with a 50mm aerodynamic rim profile, delivering a lightweight, stiff, and confidence-inspiring platform for gravel racing, mixed-terrain endurance rides, and road-to-gravel versatility. Engineered to balance aero performance with wide tire compatibility, these wheels are designed for riders seeking improved speed, stability, and tubeless flexibility at a competitive factory-direct price.

Key Specifications

• Rim Material: Toray T800 UD matte carbon fiber
• Rim Depth: 50mm aerodynamic mid-profile
• Internal / External Widths: Internal: 28 / 30 / 32mm; External: 34 / 36 / 38mm
• Wheel Size: 700C (ETRTO 622mm)
• Total Weight (pair): 1285g ±2% (34/36mm); 1330g ±2% (38mm)
• Spokes: Sapim CX-Ray stainless steel, aero bladed
• Hub System: BL180 alloy hubs with TPI ceramic bearings and 54T ratchet driver
• Braking Interface: Center Lock disc brake compatible
• Tubeless: Tubeless-ready, supports 28–50mm tires
• Certifications & Warranty: ISO 4210-7, REACH-compliant, 24-month manufacturer warranty

Performance & Use

The 50mm rim depth provides aerodynamic benefit without sacrificing handling on variable surfaces, while the broad internal widths enable stable sidewalls and optimal tire shaping for 28–50mm tubeless tires. The Sapim CX-Ray bladed spokes and ceramic-bearing BL180 hubs deliver a responsive ride feel and efficient power transfer, and the 54T ratchet engagement ensures reliable engagement for technical terrain and sprint efforts. Bola’s multi-stage quality control and included warranty position this wheelset as a cost-effective alternative to higher-priced factory models while retaining high-spec components.