Carbon Fiber Sporting Goods
Carbon 700C 38mm Tubeless Wheelset for Rim Brake | 25mm Wide | 1477g
Carbon 700C 38mm Tubeless Wheelset for Rim Brake | 25mm Wide | 1477g
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Bola Carbon 38mm Tubeless Wheelset — 700C Rim Brake
A 700C carbon tubeless wheelset built for road cyclists who want a versatile, lightweight option for both climbing and endurance riding. At 1,477g ± 30g per pair, this 38mm-profile, 25mm-wide rim brake wheelset sits under the 1,500g threshold most performance riders target, without sacrificing lateral stiffness or tubeless compatibility.
Key Specifications
| Specification | Detail |
|---|---|
| Rim Profile | 38mm (carbon) |
| Rim Width (internal/external) | 25mm wide |
| Weight (per pair) | 1,477g ± 30g (tubeless setup, accessories excluded) |
| Brake Interface | Rim brake |
| Axle Standard (Front) | O.L.D 100mm, 2 sealed bearings |
| Axle Standard (Rear) | O.L.D 130mm, 4 sealed bearings |
| Hub | Bola OEM |
| Spoke (Front) | 20× Pillar 1423, radial pattern |
| Spoke (Rear) | 24× Pillar 1423, radial (non-drive) / 2× cross (drive) |
| Spoke Tension Offset | ±0.1mm |
| Max Spoke Tension | 180 kgf |
| Tire Pressure Range | 100–125 psi |
| Max Rider Weight | 100 kg (220 lbs) |
| Included Accessories | 2 pairs of rim brake pads, 3 spare spokes |
38mm vs. 50mm — Which Profile Is Right for You?
A 38mm rim profile offers a practical balance between aerodynamic gain and crosswind stability. Compared to a 50mm rim, the 38mm depth generates less lateral drag in winds above 30 km/h, making it more manageable on exposed climbs and open roads. Riders who spend time across varied terrain — sportives, gran fondos, mixed-elevation routes — typically find the 38mm depth more versatile than deeper 50mm+ options optimized for flat time-trial courses.
Tubeless Compatibility
The rim is tubeless-ready. When paired with a compatible tubeless tire and sealant, riders can run lower effective pressures while maintaining the rated 100–125 psi ceiling, reducing rolling resistance and improving puncture resistance compared to a standard clincher setup.
Rider Weight & Safety
The wheelset is rated to a maximum rider weight of 100 kg (220 lbs), inclusive of rider body weight only (not including bike or luggage load). Riders near this limit on rim brake systems should monitor rim heat on long descents, as sustained braking generates heat that can affect carbon rim integrity over time. The included brake pads are specifically formulated for carbon rim surfaces.
Frequently Asked Questions
- Are these wheelsets suitable for a 100kg rider on rim brakes?
- Yes — the wheelset is rated to 100 kg rider weight and is built with 24 rear spokes and 4 sealed bearings for added load capacity. Use only the included carbon-specific brake pads and allow cooling intervals on extended descents.
- Is a 38mm carbon wheelset good for climbing?
- At 1,477g per pair, this wheelset is competitive with dedicated climbing wheels. The 38mm profile adds modest aerodynamic benefit on descents while keeping rotational weight low enough for sustained climbs.
- What tires are compatible with this wheelset?
- The 25mm-wide rim is compatible with 700C road tires from 25mm to 32mm width in tubeless or clincher (with tube) configurations. Confirm tubeless-compatibility on the tire label before mounting without a tube.
- Does this wheelset come with brake pads?
- Yes — two pairs of carbon-specific rim brake pads and three spare spokes are included. Do not use standard aluminum-compound brake pads on carbon rims.
- What cassette freebody does the rear hub accept?
- Please confirm freebody compatibility (Shimano/SRAM HG, Campagnolo, or XDR) with the seller before purchase, as hub specification may vary by configuration.
