RaceLab CX55 Tubular Wheels
Rotation Engineering

RaceLab CX55 Tubular Wheels

Sale price$2,250.00
Hub: DT Swiss 240
Driver: HG11

Description

Aero Speed. Tubular Grip. Pro-Level Build.

The RaceLab CX55 is a deep-section tubular carbon fiber wheelset engineered for cyclocross courses where speed is everything. Wide-open power sections, fast straights, and pavement segments demand a wheel that holds momentum without surrendering the cornering authority of a true tubular system. The CX55 is that wheel.

A 55mm rim depth delivers a measurable aerodynamic advantage on faster courses, in time trial-style efforts, and through the long power sections that decide elite races. Paired with a tubular tire system, the CX55 unites aero efficiency with the unmatched traction, ride feel, and pinch-flat resistance that have defined cyclocross podiums for generations.

Advanced Carbon Architecture

Constructed from high-modulus carbon fiber, the CX55 achieves a verified set weight of 1400g (±40g). The layup schedule is engineered to maximize lateral stiffness and structural rigidity at race speeds while preserving the controlled compliance demanded across rough, varied courses.

Each rim is dynamically balanced during manufacturing — eliminating the need for added counterweights — for harmonized rotation at speed and consistent feel from start gate to finish line.

Hand Built. Precision Assembled.

Every RaceLab CX55 wheel is hand built in-house by experienced wheel technicians using only the highest quality components. Spoke tension is meticulously measured and balanced to exact tolerances, ensuring structural uniformity, long-term reliability, and consistent performance under race-level loads.

This deliberate, hands-on assembly process allows each wheelset to meet exacting standards of trueness, roundness, and tension balance — delivering a ride quality that is both precise and enduring.

Structural Reinforcement, Intelligently Applied

The variable-thickness nipple bed reinforces the spoke interface — the highest stress zone within any performance wheel. By increasing material only where required, durability is enhanced without compromising weight targets. This precision allocation of carbon ensures long-term structural integrity while preserving the lightweight character demanded by competitive riders.

Tubular Performance

The tubular rim bed is shaped for secure tire bonding and a clean, aerodynamic profile. The 28mm width supports the wide cyclocross tubulars preferred by elite racers, delivering the cornering grip, low rolling resistance, and supple ride quality that only a properly mounted tubular can provide.

Performance Defined

  • 55mm aerodynamic carbon rim profile
  • Tubular-only — maximum traction and pinch-flat resistance
  • 28mm rim width — built for cyclocross tubulars
  • High-modulus carbon construction
  • Precision-balanced rim architecture
  • Hand built in-house to exact tolerances
  • Reinforced variable-thickness nipple bed
  • Verified set weight: 1400g (±40g)
  • The RaceLab CX55 is engineered for the racer who refuses to choose between aerodynamic advantage and tubular tire performance. It is a wheelset built to win on the fastest courses on the calendar.

Specifications

Depth: 55mm

Rim Type: Tubular only

Spoke Count: 24h

Width: 28mm

Spokes: DT Swiss Aerolite straight-pull bladed

Nipples: DT Swiss Squorx

Set Weight: 1400g (±40g)

ERD: 529

Offset: 0

Hub Options: Rotation Engineering Axis Pro ($1950) | DT Swiss 240 ($2250)

Driver Options: HG11, XDR, Microspline

Axle Standards: 142x12 / 100x12

Rotor Mount: Centerlock

 

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