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Lake CX400 Shoes - Wide


Regular price $44999

Color
Size

Typically ships within 5-8 business days.

Lake   |   SKU: 3024574  |   Option: White / Black, 39

Pickup available at RA Cycles - Brooklyn

Usually ready in 24 hours


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Lake CX400 Shoes - Wide Info

For cyclists with wide feet, Lake has no real competition at this level. The brand has been building anatomically precise cycling shoes since 1981, and no other manufacturer matches their range of width options at genuine performance tiers. The Lake CX400 Shoes — Wide are built on Lake's Race Last — a performance-oriented fit designed for high-cadence riding, with a slightly narrower toe box and tighter heel than Lake's Competition Last — cut to their Wide specification. Riders who have always had to compromise on fit get a shoe that actually fits, without sacrificing stiffness, construction quality, or the refined aesthetic of a proper race shoe.

The outsole is the standout technical feature. Lake used 3k twill weave carbon fiber — their highest-grade carbon — for a sole that forms into a complex shape while retaining exceptional stiffness and a low weight. The heel counter is a seamless extension of that carbon outsole, wrapping and stabilizing the heel without a separate molded component. It uses controlled flex rather than rigid lockdown, which gives the heel stability without the pressure points that come from stiffer designs. Each CX400 is assembled by hand in Lake's own factory — a point of distinction at this price, where most competitors have moved to automated production lines.

The upper is Clarino microfiber with strategically placed perforations for breathability and structural integrity under load. Lake builds the lateral side from a single piece of Clarino, while the medial side uses a two-piece construction that conforms progressively around the foot as the dual BOA Li2 Push/Pull dials are closed — the result is a more uniform fit across the foot rather than concentrated pressure at a single closure point. Available in White/Black and Black/White, sizes 39 through 50.

Specs at a Glance

  • Upper: Clarino microfiber, perforated
  • Outsole: 3k twill weave carbon fiber
  • Heel Counter: Integrated carbon, seamless extension of outsole
  • Closure: Dual BOA Li2 Push/Pull dials
  • Last: Race Last (Wide)
  • Colors: White/Black, Black/White
  • Sizes: 39–50

Design Benefits

  1. Integrated carbon heel counter. Rather than bonding a separate heel cup to the sole, Lake forms the heel counter as a direct extension of the 3k carbon outsole. The controlled flex design stabilizes the heel and distributes pressure evenly — a meaningful difference for long rides where a rigid heel cup becomes a problem.
  2. Race Last in wide width. The Race Last is Lake's fit for high-cadence performance riding — a slimmer, more precise shape than their Sport or Competition lasts. Getting that fit in a wide width means riders with broader feet aren't choosing between a shoe that performs and a shoe that fits.
  3. Dual BOA Li2 with two-piece medial construction. Two independent dials let you tune instep and forefoot tension separately. The two-piece medial upper construction tightens around the foot's shape as the dials close, rather than pulling from a single point — particularly useful for wide-footed riders who often need differentiated tension across the foot.
  4. Hand-assembled in Lake's own factory. At $449.99, most cycling shoes at this price are assembled on automated production lines. Each CX400 is built by hand, which is part of why Lake can maintain the precision fit their wide and custom sizing programs require.

The RA Perspective

Lake has been the go-to for wide-footed cyclists for decades, and it's not close. When a rider walks in with a wide foot and asks for a proper performance shoe, we almost always start the conversation here. The CX400 Wide gives you a shoe built on a real race last — not a comfort-focused design padded out to accommodate width — and that distinction matters for riders who take their riding seriously.

The integrated carbon heel counter is what sets this shoe apart from what you'd find at a similar price elsewhere. Most shoes at this level use a separate molded heel cup bonded to the sole. Lake's approach makes the heel counter a structural extension of the carbon sole itself, and you can feel the difference in how the heel sits — stable in a way that disperses pressure rather than concentrating it at the back of the foot.

The dual BOA Li2 system paired with the two-piece medial construction is also worth understanding. The two-zone dial setup lets you independently adjust instep and forefoot tension. For wide-footed riders who often need different tension across the foot — tighter at the instep, more room across the forefoot — that independent control is genuinely useful, not just a marketing feature.

Hand-assembled in Lake's own factory, 3k carbon outsole, integrated heel counter, Race Last in wide width. At $449.99, the CX400 Wide is the answer to a question a lot of riders have been asking for years: why can't I get a real performance shoe that fits my feet? Here it is.

Lake CX400 Shoes - Wide Size Chart

LAKE Race Last Width Sizing

Size
Last Length (mm) - Add +5mm to your measured length to get correct shoe length
Narrow Width (mm)
Regular Width (mm)
Wide Width (mm)
36
224.5-227
83
37
230.5-234
85
37.5
234.5-237
85
38
237.5-240
87
38.5
240.5-243
87
39
243.5-246
88
97.8
100.24
39.5
246.5-250
88
98.8
101.24
40
250.5-253
89
99.8
102.24
40.5
253.5-256
90
100.8
103.24
41
256.5-260
91
101.8
104.24
41.5
260.5-263
92
102.8
105.24
42
263.5-266
93
103.8
106.24
42.5
266.5-270
94
104.8
107.24
43
270.5-273
95
105.8
108.24
43.5
273.5-276
96
106.8
109.24
44
276.5-280
97
107.8
110.24
44.5
280.5-283
98
108.8
111.24
45
283.5-286
99
109.8
112.24
45.5
286.5-290
100
110.8
113.24
46
290.5-293
101
111.8
114.24
46.5
293.5-296
103
112.8
115.24
47
296.5-300
103
113.8
116.24
48
303.5-306
105
115.8
118.24
49
309.5-313
112
50
313.5-316.5
108
119.8
122.24
52
326.5-329
118

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