BOLA 45mm Carbon Gravel Rim, 700C, 30mm Inner Width, Offset, Tubeless Ready

Hit mixed surfaces with a wheel built for wide gravel tires and sustained performance. The BOLA 45mm carbon rim pairs a deep 45mm profile with a 30mm inner width to support 40–50mm tubeless gravel tyres, giving you added stability, traction, and confidence when the road turns rough. Available in four verified weight classes (380g–455g), it suits racers chasing low rotational mass and riders who prioritize durability.

BOLA 45mm Carbon Gravel Rim, 700C, 30mm Inner Width, Offset, Tubeless Ready - Designed for gravel & all-road performance

The rim’s unidirectional carbon construction balances stiffness and impact resistance, delivering a responsive feel under power while keeping overall bike weight down. Its asymmetrical offset profile reduces spoke tension imbalance, improving long-term wheel durability under the varied loads common to gravel and mixed-terrain riding. Tubeless-ready compatibility lets you run lower pressures for improved comfort and puncture resistance without sacrificing rolling efficiency.

Why it fits your routine

• Optimized tyre support: 30mm inner width is engineered for 40–50mm tubeless gravel tyres, increasing air volume for traction and comfort on loose or uneven surfaces.
• Proven strength targets: In-house testing shows forward compressive strength >300kg and lateral torsion >50kg, indicating the rim is built to withstand real-world gravel stresses.
• Asymmetric offset: Offset rim shape balances spoke tension to enhance wheel longevity and reduce the need for frequent re-tensioning during heavy use.
• Multiple verified weights: Choose from 380g, 400g, 430g or 455g (±10–15g) to match priorities between low rotational mass and impact resistance.
• Clear compatibility: 700C wheel size with an ERD of 548mm simplifies custom builds and spoke length calculations.
• High spoke hole tension: Specified to exceed 280kg, supporting durable builds for sustained riding and heavier loads up to 120kg rider weight.
• Tubeless-ready bed: Airtight rim bed designed to seal efficiently with tubeless tyres so you can run lower pressures for grip and reduced puncture risk.

Real-world use cases include endurance and gravel racing where a sub-400g option reduces rotational mass, all-road builds that benefit from wider tyre support and increased stability, and custom wheelsets for teams or riders who want tailored strength-to-weight trade-offs. Measured ERD, verified weight classes, and explicit performance targets make the BOLA 45mm rim straightforward to spec into competitive and durability-focused wheel builds.

Key specifications: 45mm rim depth, 36mm outer width, 30mm inner width, ERD 548mm, verified weights 380–455g (±10–15g), 700C wheel size, maximum rider weight 120kg, unidirectional carbon fibre composite material, forward compressive strength >300kg, lateral torsion >50kg, and spoke hole tension >280kg.