Carbon Fiber Sporting Goods

Bola 700C Carbon Wheelset 40mm Disc Brake – 30mm Wide Rim, 1460g, Road & Gravel

Name: Bola 700C Carbon Wheelset 40mm Disc Brake – 30mm Wide Rim, 1460g, Road & Gravel
Brand: Carbon Fiber Sporting Goods
Price: 390.00 USD
Availability: InStock

$390.00 USD

~~$650.00 USD~~ $390.00 USD

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Bola 700C 40mm Carbon Disc Brake Wheelset – Road & Gravel

The Bola 700C wheelset delivers a 40mm carbon rim with a 30mm outer width and 24mm inner width, optimized for 28–38mm tires on road and gravel surfaces. Weighing 1,460g ±10g per pair, it suits amateur and club-level riders seeking aero efficiency without pro-race weight penalties. Max rider weight: 120kg.

Rim Specifications

Profile: 40mm carbon rim, UD matte finish
Outer width: 30mm
Inner width: 24mm (supports 28–42mm tires per ETRTO guidelines)
Runout tolerance: ±0.2mm offset
Max spoke tension: 180 kgf
Tire pressure range: 100–125 psi

Hub Specifications

Model: Bola 52T Ratchet, NBK bearing, disc brake, straight-pull
Front hub: 2 sealed bearings, O.L.D. 100mm
Rear hub: 4 sealed bearings, O.L.D. 135mm
Front end caps: M9 / M12 / M15
Rear end caps: M10 / M12 / M12×142 (Boost compatible)

Spoke & Build Specifications

Spoke brand: Pillar 1423 bladed
Spoke count: 24F / 24R
Lacing pattern: 2× cross front and rear

Wide-Rim Advantage: 30mm vs. 25mm

Metric	30mm Outer Width (This Wheelset)	25mm Outer Width (Narrow Standard)
Recommended tire width	28–42mm	23–32mm
Tire sidewall support	Higher – reduces pinch flats	Lower on wider tires
Aerodynamic profile	Optimized for tires ≥28mm	Optimized for tires <25mm
Gravel suitability	Yes – stable on loose surfaces	Limited

Tradeoff note: The 30mm outer width adds marginal weight vs. 25mm rims but improves cornering stability and reduces rolling resistance when paired with 28mm+ tires — a net benefit for endurance road and gravel use.

In the Box

Front and rear carbon wheelset (700C)
3× spare spokes (Pillar 1423)
Multiple end cap adapters included

Frequently Asked Questions

Are 40mm carbon wheels good for amateur cyclists?: Yes. The 40mm profile balances aerodynamic gain and crosswind stability better than 50mm+ deep rims, making it practical for club rides, century events, and mixed road/gravel routes without the handling sensitivity of deeper race wheels.
What tire sizes fit a 24mm inner width rim?: Per ETRTO standards, a 24mm inner width is optimized for 28–42mm tires. Running 25mm tires is possible but sub-optimal; 28–32mm road tires and 35–40mm gravel tires perform best.
Is this wheelset compatible with Boost 148 rear axles?: Yes. The included M12×142 and M12×148 end caps cover both standard 135mm and Boost 142/148 rear spacing. Confirm your frame's O.L.D. before ordering.
What brake rotors are compatible?: The hub uses a standard 6-bolt disc brake interface, compatible with Shimano, SRAM, and most third-party 6-bolt rotors (rotor not included).
What is the warranty on this wheelset?: Bola offers a 3-year manufacturer warranty covering rim and hub structural defects under normal riding conditions.