Sidi Genius Fit Carbon Shoes

Sidi Genius Fit Carbon Shoes
  • Color: Black
  • Color: Black/Yellow Fluo
  • Color: White/Black/Red
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Sidi's Genius Fit are specifically engineered with comfort and efficiency in mind. The supple Technomicro uppers are durable, breathable, and tougher than leather. And, Sidi's Arch Compression Straps, Caliper Buckles and High Security Velcro straps offer easy adjustment and a custom fit, while the padded tongues maximize your comfort. Plus, Sidi's carbon-injected Millennium 4 soles deliver awesome power transfer. Get the Genius Fit Carbons and your feet will thank you for years to come.

Fitting Yourself to Sidi Cycling Shoes

There is no substitute for a perfect fit. Your shoes are the most important contact point between you and your bike, affecting power, comfort, and providing that locked-in feeling of oneness with your bicycle.

Fitting tips
Try shoes on at the end of the day — your feet swell by at least a half-size as the day progresses, and as much as a full size on hot days.

Stand up. Feet expand under pressure — standing up will give you a better sense of how your shoes will fit under pedaling pressure.

Bring the socks and orthotics you ride with — they have a tremendous influence on foot volume and fit.

Be patient! Non-leather cycling shoes do not stretch over time — how they fit in the store will be how they fit, period. However, as the shoes warm up from body heat the uppers will become more pliable and conforming. Give your shoes at least 10 minutes to heat up, and readjust the closures to accurately gauge how they’ll feel mid-ride.

Foot measuring devices typically measure length and width only, and do not account for overall shape or foot volume. It’s imperative that you try on shoes a half-size larger and smaller than your measured size, for confirmation of proper fit.

How Sidis are sized
Sidi half sizes are 3mm longer, with slightly increased toe box volume. Full sizes are 6mm longer, with proportionally greater volume.

Standard-size Sidis roughly correspond to a D width on the industry-standard Brannock sizing scale.

Mega sizes are cut with more material throughout, and larger-volume heel cups. Mega sizes roughly correspond to an EE/EEE width on the Brannock sizing scale.

Narrow sizes are cut with less material throughout, and narrower, lower-volume heel cups. Narrow sizes roughly correspond to a B/C width on the Brannock sizing scale.

Women’s Sidis have a more tapered shape and lower volume than standard or narrow-width Sidis. Women with consistently wide or narrow feet, from heel to the forefoot may experience better fit in Sidi standard or narrow widths.

The four common cleat bolt patterns.
In order to mount your pedal cleats to your shoes (cleats are included with new pedals and sold separately), the cleats and shoes must have matching bolt patterns. 

There are four cleat configurations found on cycling shoes (diagram): SPD-R, Look/SPD-SL, SPD and Speedplay. Road shoes feature one, two or even three of these. Off-road shoes usually use the SPD pattern. If you're unsure which cleats your shoes require, please ask us. We're here to help!

Sidi's Millennium 4 soles are a nylon 6 matrix injected with carbon fiber for exceptional rigidity, lightness and durability. There are also scales for easy cleat alignment plus heel pads (replaceable) and toe pads for walking and durability.

Sidi's Soft Instep Closure System
Sidi's Soft Instep Closure System is anatomically shaped to spread pressure and provide a snug, secure, and ultra-comfortable fit.
Sidi's Caliper buckles make it super easy to fine-tune how tight your shoes are even when you're riding. Simply lift the Ratchet Levers to tighten, and press the Side Levers to loosen the fit or release the strap.
Fit Relievers are tiny cuts in the tongue that reduce bulk and keep it from rolling over and digging into your foot.

Part Numbers

Option UPC MPN
Black / 38 2000000433790 14105101380
Black / 38.5 2000000433806 14105101385
Black / 39 2000000433813 14105101390
Black / 39.5 2000000433820 14105101395
Black / 40 2000000433837 14105101400
Black / 40.5 2000000433844 14105101405
Black / 41 2000000433851 14105101410
Black / 41.5 2000000433868 14105101415
Black / 42 2000000433875 14105101420
Black / 42.5 2000000433882 14105101425
Black / 43 2000000433899 14105101430
Black / 43.5 2000000433905 14105101435
Black / 44 2000000433912 14105101440
Black / 44.5 2000000433929 14105101445
Black / 45 2000000433936 14105101450
Black / 45.5 2000000433943 14105101455
Black / 46 2000000433950 14105101460
Black / 46.5 2000000433967 14105101465
Black / 47 2000000433974 14105101470
Black / 48 2000000433981 14105101480
Black / 49 2000000433998 14105101490
Black / 50 2000000434001 14105101500
Black / 51 2000000434018 14105101510
Black / 52 2000000434025 14105101520
Black/Yellow Fluo / 41 2000000433585 14105124410
Black/Yellow Fluo / 41.5 2000000433592 14105124415
Black/Yellow Fluo / 42 2000000433608 14105124420