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Bola ULT 45R 700C Road Carbon Disc Wheelset cx ray Ceramic

Bola ULT 45R 700C Road Carbon Disc Wheelset cx ray Ceramic

$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 45R 700C Carbon Disc Wheelset - a ~1250g 45mm aero road set with Sapim CX-Ray spokes and a TPI-ceramic BL100 hub, built in Toray T1000 UD matte carbon.

The Bola ULT 45R is a mid-depth aero carbon disc wheelset built for road racers, TT enthusiasts, gran fondo riders, and endurance cyclists who want real aero gains without sacrificing climbing and crosswind handling. T1000 UD matte carbon, ~1250g per pair, Sapim CX-Ray spokes, and a TPI-ceramic BL100 hub deliver race-ready performance 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 35-42mm tire at 55-70 PSI on rough chipseal.

Max rider weight: rated to 110kg system - check rider and gear before ordering.

Same-depth series: the CLA 45R at $468 uses steel bearings, the ELT 45R at $579 uses Pillar spokes, and the SL 45R at $789 moves to DT Swiss 350 - choose this ULT for the CX-Ray ceramic tarmac build.

Adjacent depth: the ULT 40R climbs easier and the ULT 50R goes faster on flats - this 45R is the tarmac-dominant middle.

Target Audience & Usage Notes.

For road racers, gran fondo riders, and endurance cyclists wanting a versatile aero set.

Not for heavy expedition bikepacking or aggressive DH trails.

Requires a disc frame; multiple freehub options.

Max system weight 110kg.

The Ride That Awaits.

A rolling spring group ride rewards it on every descent and drag - the rim slips through the air without deep-section drama, the bladed spokes translate each surge into speed, and the ceramic hub spins on long as though reluctant to let the momentum end. Free shipping, VAT included, and a 24-month limited warranty with crash-replacement cover mean you feel the difference on the first climb.

Specifications
Size: 700c
Carbon Grade: T1000 ultra-high-modulus carbon fiber
Rim Depth: 45mm
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: 1250g (tape & valve excluded, ±2% tolerance)
Accessories: Tape, valve and spare spokes
Trade-offs & Considerations
Aero vs Crosswind: The 45mm rim saves about 3.5W versus a 35mm training wheel at 40km/h and stays composed at 10° yaw; it is the all-rounder sweet spot of the ULT line — stepping up to the 50R adds about 1.5W of aero but brings noticeably more crosswind steering on exposed coast.
Weight vs Stiffness: T1000 carbon and Sapim CX-Ray spokes bring the set to about 1250g (±5g), roughly 20g lighter than the T800 Pillar-spoke ELT 45R at the same 45mm depth, while lateral stiffness stays within 3% and impact compliance meets ISO 4210-7 reference levels.
Tire-Type Trade-off: The hooked / hookless bed runs 28–42c tubeless: 21mm internal for a 28mm tyre at 75–90 PSI, 24mm for 30–32mm at 65–80 PSI, 26mm for 35–42mm at 55–70 PSI; the wider beds trade a little outright speed for comfort and grip on long days.
Sourcing & Delivery Trade-off: Stock builds ship in 1–3 business days at $698; a custom width, freehub or quick-release spec adds 7–15 business days and roughly a $60–100 premium.
Config Ladder: TPI ceramic bearings and the 54T ratchet (6.7° engagement) are already standard; moving to the 26mm internal bed adds about 30–50g for wider tyres, while stepping up to the 50R rim adds about 30g and ~1.5W of aero.
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: 122–136 N/mm (internal lab)
Lateral Stiffness: 42–51 N/mm
Max System Weight: 110kg
Recommended Use Cases
Triathlon / Time Trial: IM and club TT fields reward deep-section aero; 45mm profile minimises drag on flat-to-rolling courses where aero dominates climbing.
Aero Road Racing: Fast flat road races and crits on disc frames; 2026 WorldTour teams run 28-30mm tubeless — pair the inner bed accordingly for rolling speed.
Race-Pace Training: Open, fast courses where holding aero position pays off; stable crosswind handling builds confidence before race day.
Compatibility
Brake Standard: Disc brake, Center Lock rotor (140/160mm)
Axle: 12x100 / 12x142 thru-axle or QR
Freehub: HG / XD / Micro-Spline / Campagnolo N3W (select at checkout)
Tire: Tubeless-ready clincher, 25-50mm (optimised 28-42mm)
Frame: 700C disc road / light gravel frames
How It Compares
ModelHubSpokeBearingWeightDepthWidthPrice
ULT 45R 54T ratchet, 6.7° engagement Sapim CX-Ray, 24/24, 2x straight-pull Ceramic 1250g 45mm 28/30/32mm See store
Model A 36T ratchet, 10° engagement Bladed aero Ceramic ~1515g 45mm 27mm $1,899
Model B 3-pawl, 24T, 15° engagement Bladed aero Steel ~1510g 44mm 25mm $1,049
Model C 36T ratchet, 10° engagement Bladed aero Ceramic ~1400g 40mm 28mm $699
FAQ
How does this 45mm deep rim handle crosswinds on fast descents?
An optimised 45mm 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 35-42mm 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
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