1 3

Bola ULT 40R 700C Carbon Road Wheelset Disc

Bola ULT 40R 700C Carbon Road Wheelset Disc

$698.00 USD
$800.00 USD $698.00 USD
Sale Sold out
Free shipping  |  VAT included in EU & USA
Rim Width(Ext/Int)
Freehub Body
Decal

The Bola ULT 40R 700C Carbon Disc Wheelset - a featherweight ~1220g 40mm all-rounder with Sapim CX-Ray spokes and TPI ceramic bearings, built in Toray T1000 carbon.

The Bola ULT 40R is an all-round mid-profile carbon wheelset engineered for road racers, gran fondo riders, endurance cyclists, and gravel enthusiasts who want one versatile set for tarmac, rolling hills, and light gravel. Competitive low weight, real-world aero, tubeless readiness, and broad drivetrain compatibility at a fraction of big-brand cost.

Buying Guide.

Internal width - 21mm: run a 28mm tire at 75-90 PSI for smooth tarmac.

Internal width - 24mm: cup a 30-32mm tire at 65-80 PSI for mixed roads.

Internal width - 26mm: settle a 35-45mm tire at 55-70 PSI on rough chipseal and gravel.

Max rider weight: rated to 105kg system - confirm rider and gear before ordering.

Same-depth series: the ELT 40R at $579 uses Pillar spokes and the CLA 40R at $468 uses a steel-bearing hub - choose this ULT for the lightest CX-Ray-shod versatile build.

Adjacent depth: the ULT 45R adds aero and the ULT 50R more flat speed - this 40R is the lightest, climb-friendly ULT.

Target Audience & Usage Notes.

For endurance road riders, gravel eventers, and mixed-terrain adventurers.

Not for heavy off-road downhill or extreme enduro.

Requires a disc road/gravel frame with thru-axles.

Max system weight 105kg.

The Ride That Awaits.

A hilly fondo is this wheel's love letter - the shallow rim aeros the rollers without crosswind drama, the light pair makes every kick on the climbs feel like a gift, and the ceramic hub hums through the long, steady afternoon. Free shipping, VAT included, and a 24-month limited warranty with crash-replacement cover mean you ride the hills you used to dread.

Specifications
Size: 700c
Carbon Grade: T1000 ultra-high-modulus carbon fiber
Rim Depth: 40mm
Bead Type: Hooked / Hookless
Inner Rim Width: 21mm / 24mm / 26mm options
Outer Rim Width: 28mm / 30mm / 32mm
Hub Model: BL 100 54T
Spoke: Sapim CX Ray, 24/24, 2x Straight pull
Bearing Type: TPI Ceramic bearing
Complete Wheelset Weight: 1220g (tape & valve excluded, ±2% tolerance)
Accessories: Tape, valve and spare spokes
Trade-offs & Considerations
Aero vs Crosswind: The 40mm depth saves about 2.0W versus a 32mm rim at 40km/h; at 10 degrees of yaw it stays calm, a climbing and all-round aero balance.
Weight vs Stiffness: At about 1220g the T1000 layup and ceramic hub save roughly 140g versus a 1360g steel-hub 45R; lateral stiffness stays within 4%.
Tire-Type Trade-off: Tubeless clincher lets you run 28-45mm tyres at lower pressure for comfort and rolling resistance, but sealant needs topping up every 3-6 months.
Sourcing & Delivery Trade-off: Standard stock ships in 1-3 business days while a custom internal-width build takes 7-15; at about $698 it is well under a DT 40mm set near $1,899.
Config Ladder: The BL100 54T TPI ceramic hub is standard; stepping down to the ELT-spec steel bearing and P1420 spokes saves about $120 but adds about 1.5W of friction and roughly 40g; the internal bed is selectable at 21, 24 or 26mm.
Performance Test Data
Fatigue Test: 750,000 cycles @640N (ISO 4210-7 Annex A, informative only)
Impact Resistance: >40J (ISO 4210-7 reference)
Flatness: <0.25mm (internal QC)
Roundness: <0.3mm (internal QC)
Max Spoke Tension: >300kg (internal QC)
Ultimate Strength: >100kg (internal QC)
Dynamic Equilibrium: <3g (internal QC)
Radial Stiffness: 98–114 N/mm (internal lab)
Lateral Stiffness: 30–38 N/mm
Max System Weight: 105kg
Recommended Use Cases
Road Racing: 2026 peloton standard runs 28-30mm tubeless on wide rims (TdF 2026 average ≈30mm); this 40mm section suits 40+ km/h racing and flat-to-rolling stages.
Gran Fondo / Endurance: All-day rides on modern frames designed around 30-32mm tyre clearance (Giant Propel, Cannondale SuperSix, Cervélo S5, 2026); wide 21mm bed pairs 25-32mm tubeless for comfort and speed.
Climbing / Hill Repeats: Shallow section accelerates quickly on steep gradients; pairs well with 28-30mm tubeless for all-round race duty.
Compatibility
Brake Standard: Disc brake, Center Lock rotor (140/160mm)
Axle: Front 12x100 / Rear 12x142 thru-axle
Freehub: Shimano / SRAM / Campagnolo (select at checkout)
Tire: Tubeless-ready clincher, 25-50mm
Frame: 700C disc road / gravel frames
How It Compares
ModelHubSpokeBearingWeightDepthWidthPrice
ULT 40R 54T ratchet, 6.7 degree engagement Sapim CX-Ray, 24/24, 2-cross Ceramic 1220g 40mm 28-32mm See store
Model A 36T ratchet, 10 degree engagement Aero steel Ceramic ~1515g 45mm 27mm $1,899
Model B 3-pawl, 24T, 15 degree engagement Aero steel Steel ~1510g 44mm 25mm $1,049
Model C 36T ratchet, 10 degree engagement Aero steel Ceramic ~1400g 40mm 28mm $699
FAQ
How does this 40mm deep rim handle crosswinds on fast descents?
An optimised 40mm profile keeps steering torque predictable at 10°–15° yaw, so high-speed descents stay planted.
Do these rims accept standard clincher tyres, and what is the pressure limit on hookless?
Hooked rims fit standard clincher tyres directly, with or without tubes. For hookless rims, per ETRTO, tubeless tyres 28c and wider must not exceed 72.5 PSI (5.0 bar) to prevent unseating.
Are ceramic bearings durable in rain or rough conditions - do they need frequent service?
The bearings use dual-lip contact labyrinth dust/water seals. No special disassembly is needed for wet riding; a routine grease top-up every ~5,000 km or after each rainy season is enough.
Which tyres should I run, and at what pressure?
On the 21mm bed run a 28mm tyre at 75-90 PSI; the 24mm bed suits 30-32mm at 65-80 PSI; the 26mm bed runs 35-45mm at 55-70 PSI tubeless.
Will I really pay no customs or VAT for delivery to the US and EU?
Yes. The Economy channel ships DDP - duties and VAT are fully prepaid by us, cleared in advance, delivered to your door with no extra payment to customs or the courier.
Warranty & Shipping
Warranty Period: 2 years
Crash Replacement: 30% discount on replacement parts
Processing Time: In stock: 1–3 business days · Out of stock or custom order: 7–15 business days
Shipping method: FedEx/UPS/DPD/EMS Economy (free with duties & VAT included in USA & EU) · Expedited option available
Estimated Delivery: Economy 7–20 business days · Expedited 3–7 business days, customs clearance excluded
View full details