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CX403 Speedplay Cycling Shoe - Men's

5 out of 5 stars
1 Review
Current price: $302.49 Original price: $549.99
45% off


Size Chart


CX403 Speedplay Cycling Shoe

Lake’s top-tier road shoe gets an update in the new CX403. Featuring the same custom fit carbon fiber sole and supple kangaroo leather upper as its predecessor, the CX403’s closure system is redesigned and the added rubber toe bumper helps extend the shoe’s longevity. The folks at Lake recognize that when it comes to pedals, everyone has a favorite, which is why the CX403 Shoes are offered in this Speedplay-specific sole.

Lake has worked long and hard on building the ultra-efficient Custom Fit carbon fiber sole. You may have had carbon-soled shoes in the past that didn’t quite fit, and if that’s the case, you recognize that ultimate power transfer is meaningless if your feet are in agony. But you can say goodbye to the era of compromise, as these are heat-moldable, ensuring the perfect fit and incredible heel hold. The Speedplay-specific sole eliminates the need for an adapter base plate between shoe and cleat, lowering the stack height to improve power transfer. With less material between you and the pedal, power transfer is made more efficient.

The redesigned dual BOA closures only enhance the fit. Compared to the CX402, the CX403’s instep strap is twice as wide to better disperse pressure from the upper BOA dial. By employing two Boa dials, Lake enables you to keep your heel locked down, without requiring undue pressure on the forefoot. And as you already know, that means better blood flow, and greater comfort.

The BOA closures weave between the sleek kangaroo leather upper, which promises fantastic service life. Better yet, since kangaroo leather is among the thinnest, most durable types of leather around, they’re incredibly supple and only get better with time. The perforations work in conjunction with mesh panels to maximize airflow, so your feet stay cool, instead of getting clammy. Carbon fiber panels along the instep help keep the foot stabilized and increase the efficiency of power transfer as well as resist the shoe stretching out too much and changing shape.


  • Unrivaled cycling shoes for the discerning racer
  • Stiff carbon sole can be heat-molded to your foot
  • Speedplay-specific sole eliminates need for adapters
  • Kangaroo leather is supple and forms to foot
  • Dual Boa closures dial fit without undue weight gain or bulk
  • Race Plus last, see size chart for fit information
  • Item #LKCZ02H
Upper Material
Klite Kangaroo leather, Carbitex CX6 carbon fiber
perforated kangaroo leather
2 IP1-S BOA dials
carbon fiber
Cleat Compatibility
4-hole Speedplay
Claimed Weight
[single, size 50] 14oz
Manufacturer Warranty
2 years

Overall Rating

5 based on 1 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 1 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

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5 out of 5 stars

March 23, 2024

High quality and great fit

I've used it several times
Size Bought:

Replaced a very well loved pair of D2 custom shoes with these Lakes. I was skeptical that the easy bake oven version of $2000 shoes would suffice. Very impressed that after 3 rounds of baking and molding that these Lakes are 95% as good as a full custom shoe at a fifth the cost. The speedplay ready soles were great and allowed me to position the cleats more mid-foot then a SPD version would have. Still some limitations on getting the cleat as far back as I would have preferred but acceptable for me given my D2s were more of a mid-foot cleat placement. Overall quality of leather and BOA system are excellent.

Big E