55mm Tubeless Carbon Road Rim 32mm outer 26mm Inner| Bola

Take a modern approach to fast, comfortable road riding with the Bola 700C tubeless-ready carbon rim. Its 55mm profile and 32mm outer / 26mm inner width are optimised for contemporary 31–48mm tyres, delivering strong 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 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 smooth pavement.

Riding with these rims tends to feel fast and planted: 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 maximum speed on flat courses can choose lighter layups, while heavier riders or rough-road users can select more robust schemes.

Why it fits your routine

• Deep aero without going full TT: The 55mm depth sits in the sweet spot between all-round versatility and dedicated aero performance — delivering significantly more aerodynamic advantage than 40–50mm rims on flat and rolling terrain, while remaining more manageable in crosswinds than 60–65mm options.
• Built for road racing and fast group rides: Whether you’re chasing a sprint finish, holding a breakaway, or pushing pace on a flat gran fondo, the 55mm profile gives you the aero edge that shallower rims can’t match on open roads.
• Wide enough for modern tyre standards: The 32mm outer / 26mm inner width supports 31–48mm tubeless tyres at lower pressures, improving comfort and reducing rolling resistance compared to older narrow-rim designs.
• Weight tier options: Choose Normal (535±15g), Superlight (485±15g), Ultralight (465±10g), or Extreme Light (445±10g) to match durability needs or speed 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 120kg 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 ~100kg or those regularly on poor surfaces are advised toward Superlight or Normal options. The rim’s ERD is 528mm and standard spoke and assembly hole diameters are 4.5mm and 7.5mm respectively, each available to customise for specific builds.