Campagnolo Bora Ultra WTO 33 Disc Wheelset

Stiffer, lighter and more aerodynamic, the new Bora Ultra WTO series showcases the beauty of speed.

At only 33mm deep, the Bora Ultra WTO 33 has the shallowest wind tunnel optimised (WTO) rim profile of the new Ultra family. Every external component of the wheel has been redesigned to maximise aerodynamic efficiency and reduce weight, saving you precious energy, and generating greater speed from the same rider input.

Climbers will love the Bora Ultra WTO 33’s lower weight, helping them to reach the heights even faster, change pace instantly, and descend with great speed and confidence. Built using Campagnolo’s Hand Made Ultra-Light Carbon (H.U.L.C.), the rims have Campagnolo’s mirror-like Luxury (C-LUX) finish, and undrilled 2-Way Fit rim beds, for perfect tubeless compatibility without rim tape.

Campagnolo’s beautifully moulded carbon fibre front hub body is hourglass shaped to improve aerodynamics, and is securely bonded to a light aluminium hub flange. Integrated radial spoke seats ensure perfect alignment, hidden Aero Mo-Mag nipples and slimmer Aero Elliptical spokes in Campagnolo’s G3 spoke pattern further enhance performance, and its CULT ceramic bearings promise almost frictionless rotation.

The aluminium rear with 36 tooth ratchet system can be driven by N3W, XDR or HG freehub bodies.

Main Benefits

Wider And Faster

• The completely redesigned Bora Ultra WTO 33 rim now has a 21mm internal width, and is compatible with tyres from 25mm, aerodynamically optimised for this starting compatible tyre dimension.
• The Bora Ultra WTO 33 2-Way Fit rim meets ETRTO tubeless standard for fast-rolling tubeless tyre fitment, and is also suitable for tubeless-ready and clincher tyres too.
• Wider tyres on wider rims create greater air volume and better side wall support, and especially when tubeless, can confidently be used at reduced pressures, improving grip, control and comfort, and lessening fatigue without affecting speed.

Aerodynamic Details

• The hub bodies are slimmer in the centre to reduce the frontal area they present to the wind.
• The 24 double butted Aero Elliptical spokes in each wheel have reduced from 1.6mm to 1.5mm in diameter.
• New Aero Mo-Mag nipples are hidden inside the rim to clean up the airflow over them, and are still easily adjustable.

Stop and Go

• All of the new Bora Ultra WTO wheels are designed for AFS (centerlock compatible) disc rotors.
• Campagnolo’s unique G3 spoke system counteracts the main source of torque at each hub.
• CULT ceramic bearings keep the Bora Ultra WTO hubs spinning freely for 5 ½ times longer than standard steel bearings.
• Oversized 36 tooth ratchet freehub is fast to engage and very durable, plus it accepts N3W, XDR and HG freehub bodies.

Technology

CULT - Ceramic Ultimate Level Technology

Campagnolo’s finest ceramic bearings are fitted to only the very best hubs and cranksets, and are a significant upgrade from all other bearings. Their premium quality ceramic balls are incredibly round and hard, and rotate within wear-resistant stainless steel races, which are engineered to micron-precise tolerances, maximising efficiency and durability. They won’t deform or corrode, perform consistently over time, and only need periodic cleaning then lubricating with light synthetic oil.

CULT bearings have a friction coefficient 40% lower than standard sealed bearings, and in tests, can spin for 5 ½ times longer.

G3 Geometry

Campagnolo’s unique G3 spoke pattern comprises groups of three parallel straight-pull spokes, arranged in a 2:1 ratio. Having twice as many spokes on one side allows wheels with G3 to counteract the asymmetric drivetrain and braking forces acting on them, creating more symmetric performance and equalising the load. Energy transfer and lateral rigidity are improved, and spoke tension is optimised, reducing stress and increasing lifespan.

All Campagnolo disc brake wheels utilise the G3 pattern, the front wheel has more spokes on the disc brake side, and the rear is biased to the drivetrain side.

N3W

N3W is our future: a single standard to manage all the Campagnolo cassettes… present, past and... Still to come!

N3W is a patented standard for a freewheel body engineered to house 11-, 12- and 13-speed cassettes with 9-, 10- and 11-tooth starting sprockets: Next 3 Ways. It is also still compatible with older 9- and 10-speed cassettes.

One ring to rule them all!

• N3W has the same groove profile as the classic Campagnolo body but it is 4.4mm shorter, making it lighter.
• N3W is directly compatible with the new Campagnolo cassettes with 9- and 10-tooth starting sprockets.
• To make it compatible with ALL of today’s cassettes with 11-tooth starting sprockets, simply use the N3W ring (kit ring + ring code AC21-N3W) which makes them the same length as the classic body.

Classic Campagnolo Body - Compatible with 10-11-12 speed cassettes.

N3W Campagnolo Body - Optimised for cassettes starting with sprockets with 10 teeth or less.

N3W Campagnolo Body + N3W Adapter - Backward compatibility with 10-11-12 speed cassettes.

Areo Mo-Mag

The innovative Mo-Mag system allowed external spoke nipples to be positioned from inside the rim using a magnet, with no need to create additional holes in the rim bed for them. Aero Mo-Mag takes it a step further, with a completely internal, hidden system, which maximises aerodynamics, and allows the rim to be built lighter.

The internal fibreglass-reinforced polymer nipple seats are specific to each rim and hub combination, ensuring perfect spoke and nipple alignment, and reducing real-world stress on each component. Any spoke tension adjustment can still be easily carried out in the conventional way, using the supplied proprietary Torx tool.

H.U.L.C. Handmade Ultra-light Carbon

Bora Ultra WTO rims are built using Campagnolo’s new H.U.L.C. process, which is an evolution of the unique carbon moulding process that already creates defect-free rims requiring no additional finishing. Optimising the carbon fibre and proprietary resin ratios used, alongside process improvements, guarantees consistently accurate forming of the 2-Way Fit tyre hooks and other details.

The Bora Ultra WTO rims are the lightest Campagnolo have ever made in each depth, but still deliver identical stiffness, and improved mechanical resistance, when compared to the already notably reliable non-H.U.L.C. rims.

C-LUX Finish

Fast wheels must be functional and look the part too however, so the rim (and front hub) also sports a stunning mirror-like Campagnolo Luxury (C-LUX) finish.

This C-LUX finish is so pristinely smooth and without defects that it doesn’t require lacquer, saving weight. When applied to the rim bed, as done for the first time with the new Bora Ultra WTO, the scientific precision of C-LUX also helps to ensure the safest possible seating of tubeless tires, increasing their pressure seal, the install/uninstall ease and further and further reducing the risk of abrasions to the bead.

Campagnolo Wheel Identification Card

Since its birth over 80 years ago Campagnolo has been dedicated to continuous innovation in order to produce the best, most competitive and reliable products possible. To continually push the limits in this way is the work of the engineers of the Campy Tech Lab. Even the smallest details and material choices are painstakingly scrutinised in an effort to produce what is often to become the newest performance standard. As a result, our testing department is one of the most important areas of the entire operation and each and every product must go through strenuous and extreme testing before it earns the right to bear the Campagnolo name. Campagnolo test at levels above and beyond anything required and as a result produce products that are a step ahead.

• Fatigue test: before the manufacturing stage, each wheel and each of its components are subjected to long and very challenging tests that ensure the durability and performance over time.
• Crash test: simulates the impact of the wheel in differing situations. Campagnolo crash tests have successfully passed all requirements stipulated by the UCI.
• Tyre burst test: all Campagnolo wheels are tested at inflation pressures well above those indicated on the tyre.
• Environment test: exposure to UVA and UVB rays, salt attack and exposure to moisture: these are the tests that all Campagnolo wheels must pass to ensure maximum performance and reliability over time.

100% Manually assembled and Electronically checked.

The extensive attention to detail and testing mentioned above may be sufficient for some companies to ensure the quality of their product but not for Campagnolo. To ensure the quality of each and every wheel the standards applied to the production process must be then verified on each and every final product at the end of fabrication. Campagnolo made a clear and bold decision: to assemble each wheel manually and submit it to a series of final inspections that guarantee their quality.

Only through in-depth inspection, both manual and digital, of each and every piece of every final product that leaves the premises can Campagnolo be 100% sure of the exact same quality for each and every wheel that bears the Campagnolo name.

• Balancing: guarantees the absence of vibrations at fast speed.
• Lateral and radial control: guarantees the perfect alignment of the wheel to ensure precise rolling of the wheel.
• Camber: ensures the perfect symmetry of the wheels with the bicycle.
• Spokes tension: ensures optimal balance at every point of the wheel.
• Rolling torque of the hub: ensures a perfect adjustment of the hubs.

Certilogo

Campagnolo and Certilogo against counterfeiting: a tangible answer that protects our clients’ safety and purchases.

Top-end Campagnolo wheels are considered by the market and by afi cionados to be reference products and as such are highly desirable. They have therefore also become appetising to counterfeiters who have cloned some of our models (especially those in carbon fibre) releasing considerable numbers onto the international markets. The wheel is a performance product, but also a safety component. This aspect means that those who purchase a fake product, while saving money on something that clearly costs much less than the going market price, puts their personal safety at great risk. The materials and production processes that together help to achieve a safe performing product are obviously not the same.

With the aim of fighting and combating these counterfeiters, Campagnolo is the first in the cycling sector to have put in place, thanks to the support of Certilogo, a control system that enables our clients to authenticate the product simply and immediately.

Starting with the products in the 2015 catalogue, each pair of Campagnolo wheels in the Bora and Hyperon lines will come with an individual ID code (the Certilogo Code or CLG Code) on a swing tag attached to a spoke on the wheel and, from July 2018, on an adhesive stuck to the rear wheel.

The Certilogo Code (in both numerical and QR code format) will allow anyone, before or after purchase, to check that the product is authentic. To authenticate Campagnolo wheels, just visit www.certilogo.com, insert the CLG Code or download the Certilogo APP.

We suggest you keep the Campagnolo Original Wheels tag even after product authentication for possible future use and, for wheels bought from July 2018 on, leaving the sticker with the Certilogo Code on the wheel.

Features

• UD high-strength carbon fibre, 2-Way Fit rim, C-LUX finish
• 33mm depth, 21mm internal width, 27.4mm external
• For tyres from 25mm. Aerodynamically optimised for 25mm tyres
• Aluminium hub in the rear which is disc brake-only and has CULT ceramic bearings
• Carbon hub body in the front, which is disc brake-only and has CULT ceramic bearings
• 24 slim Aero Elliptical straight pull spokes in G3 pattern
• Aero Mo-Mag hidden nipples

Specification

Spokes

• Spokes: 24 Aero Elliptical, straight pull, double-butted 1.5mm
• Spoke pattern G3
• Nipples aluminium Aero Mo-Mag, self-locking, internal

Versions and Weights

• Campagnolo N3W FW body
• HG FW body
• XDR FW body
• Front: 640g
• Rear: 745g

Compatibility

• Campagnolo sprocket set 11/12/13-speed
• Shimano sprocket set 10/11 - SRAM 10/11-speed
• SRAM 12-speed sprocket set

Hub

• Hub Type: Bora Ultra, Carbon body
• Rear Hub Type: aluminium body, 36 tooth ratchet freehub
• Hub Width: 100-142mm
• Axle Type: 12mm aluminium thru axle
• Bearings: CULT ceramic, cup and cone
• Brake Interface: AFS disc
• Freehub Compatibility: N3W, XDR, HG

Rim

• ASTM classification: 1
• Material: H.U.L.C UD high-strength Carbon fibre
• Finish: C-LUX
• Tyre Interface: 2-Way Fit
• Tyre Compatibility: Tubeless, tubeless-ready, clincher
• Recommended Tyre Size: 700c, from 25mm
• Rim Height: 33mm
• Internal Width: 21mm
• External Width: 27.4mm
• Decals: Water transfer DCS (Dark, copper shaded)

Assembly

The Bora Ultra WTO 33 Disc Brake wheel is entirely hand-assembled by a specialised Campagnolo technician and is 100% checked by electronic instrumentation. This procedure ensures that every single Campagnolo wheel offers maximum performance and reliability.

Included

• Aero Mo-Mag nipple maintenance kit
• Tubeless valves
• AFS lockrings
• Campagnolo wheel bags
• Campagnolo accessories bag
• Tyre levers
• Campagnolo N3W Z11 adapter (on Campy freehub version)