700C Tubeless Carbon Rim 32mm outer 26mm Inner 45mm for Road | Bola

Take a modern approach to fast, comfortable road and gravel riding with the Bola 700C tubeless-ready carbon rim. Its 45mm profile and 32mm outer / 26mm inner width are optimised for contemporary 31–48mm tyres, delivering aerodynamic gains while supporting lower tyre pressures for improved comfort and traction. Available in four weight tiers, the rim lets you prioritise durability or weight savings depending on your build and riding style.

Bola 700C Tubeless Carbon Road Rim - Designed for road and gravel wheel builds

Tubeless-ready sealing and a 26mm (hook or hookless) inner width accommodate recommended tyre sizes while enabling lower pressures for better vibration damping and confidence over rough pavement.

Riding with these rims tends to feel composed: the wider tyre support reduces sidewall deformation and permits tyre pressures up 90 psi range while still improving comfort when using 31–48mm tyres. Riders seeking a climbing advantage can choose lighter layups, while heavier riders or rough-road users can select more robust schemes.

Why it fits your routine

• The sweet spot for all-round road riding: At 45mm, this rim delivers meaningful aerodynamic gains on flat and rolling terrain while remaining light enough for sustained climbs — making it the most versatile depth in the road lineup for riders who want one rim to do everything.
• Competitive climbing weight: The Extremelight tier at 375g is among the lightest in the road range, giving you a genuine climbing advantage without sacrificing the aero benefit you need on flat sections of a gran fondo or race.
• Better crosswind handling than deeper rims: The 45mm depth is significantly more manageable in gusty conditions than 55–65mm options, improving confidence in criteriums, technical descents, and exposed roads.
• Weight tier options: Choose Normal (450±15g), Superlight (425±15g), Ultralight (395±10g), or Extreme Light (375±10g) to match durability needs or climbing priorities.
• Strength and tolerance data: Forward compressive strength >300kg, lateral torsion resistance >50kg, spoke hole tension >280kg; flatness <0.15mm, roundness <0.3mm, dynamic balance <3g.
• Ride-ready limits: Maximum rider weight 110kg and recommended tyre pressure up to 90 psi.
• Customisation available: Spoke hole count, valve hole (6.5mm standard), assembly hole, and nipple direction are configurable for builder preference.

Weight trade-offs are explicit: lighter layups save 60–80g per rim versus the Normal scheme but reduce layup margin; riders over ~90kg or those regularly on poor surfaces are advised toward Superlight or Normal options. The rim’s ERD is 548mm and standard spoke and assembly hole diameters are 4.5mm and 7.5mm respectively, each available to customise for specific builds.