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Sidi Mens Genius 10 Mega
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Sidi Men's Genius 10 Mega

Mfg PartNum:
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Backorder: This item is currently not in stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Excellent Rigidity With A Wider Width

Take a ride with performance kicked into high gear. The Sidi Men's Genius 10 Mega shoe is built for road cycling, exhibiting a lightweight body that is tough and resilient for all the trails ahead. Make the smart decision and treat yourself to something genius.

The Soft Instep Closure System is a wide, anatomically curved strap combined with a soft, thermo-formed EVA pad that distributes pressure evenly over the instep area. It is adjustable from both sides, which perfectly centers the EVA pad over a high or low instep. This system eliminates the need for the High Instep Extender while being completely replaceable for endless use.

The Techno-3 system dials the fit along the length of the shoe, adapting the upper shape to match your foot. Sidi Wire material is non-binding for intuitive and effortless on-the-fly adjustments. The heel cup features a new design with a lightweight, reinforced to avoid deformations after prolonged efforts and pressures.


  • Carbon composite 20 sole has injected carbon fiber for durability
  • Replaceable polyurethane heel has graduated millimetric scale
  • Integrated heel cup is anatomically shaped
  • Techno-3 system dials in the fit for added comfort
  • Sidi Wire material is non-binding for effortless adjustments
  • Soft instep closure system includes a thermo-formed EVA pad
  • All parts are serviceable and replaceable

Free Exchanges: This product qualifies for free exchanges within the first 60 days after order. We'll cover the shipping both ways for US customers if you need a different size and/or color of this product. Returned product must be in new condition with all labels and packaging. Free exchanges apply only for product in stock or available for backorder.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. Cleats may have been mounted leaving minor marks on the soles. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

This size chart provides our best estimate for which European shoe size to choose based on your US shoe size. This will not necessarily match the US size shown on the product, but it is the best guidance we can provide for this particular brand.

If we've noticed that any particular model deviates from the standardized chart, we will list this information in the product description.

Please contact us with any questions.

Width: Wide 

Cleat Compatibility: 3 Hole (Road) 

Black/Grey - 42

Mfg PartNum: SRS-GXM-BKGY-420 

Black/Grey - 42.5

Mfg PartNum: SRS-GXM-BKGY-425 

Black/Grey - 43

Mfg PartNum: SRS-GXM-BKGY-430 

Black/Grey - 43.5

Mfg PartNum: SRS-GXM-BKGY-435 

Black/Grey - 44

Mfg PartNum: SRS-GXM-BKGY-440 

Black/Grey - 44.5

Mfg PartNum: SRS-GXM-BKGY-445 

Black/Grey - 45

Mfg PartNum: SRS-GXM-BKGY-450 

Black/Grey - 45.5

Mfg PartNum: SRS-GXM-BKGY-455 

Black/Grey - 46

Mfg PartNum: SRS-GXM-BKGY-460 

Black/Grey - 46.5

Mfg PartNum: SRS-GXM-BKGY-465 

Black/Grey - 47

Mfg PartNum: SRS-GXM-BKGY-470 

Black/Grey - 48

Mfg PartNum: SRS-GXM-BKGY-480 

Black/Grey - 49

Mfg PartNum: SRS-GXM-BKGY-490 

Black/Grey - 50

Mfg PartNum: SRS-GXM-BKGY-500 

Ordered by Most Relevant First
5 stars
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1 stars
Reviewed 6/5/2023
by Anonymous
Overall Rating
Excellent but strings loosen during ride

I love Sidi megas as my 11.5 EEE foot fits great.

Comfortable shoe as previous Megas but I have to stop every 20 miles to tighten strings which is inconvenient

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Reviewed 2/27/2023
by Mark W.
Cycling Enthusiast
Lima, ohio
Value Rating
Overall Rating
grewat shoes

Bought a pair of Genius4"s for $195 in 02. had to replace the Velcro last year. This year the instep strap split. Thay have them for sale but are on back order until end of march. meanwhile I taped the split with gorilla tape and will use them for my trainer bike until new ones are in. meanwhile, I Ordered a pair of the same size Genuis 10's (on sale for $276) and they fit perfectly. 21years and old and new ones fit exactly the same. old shoes still in great shape, after 2 minor repairs. Great quality shoes.

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Reviewed 4/10/2023
by Anonymous
Overall Rating
great fitting wide shoe

shoe fits great my foot has gotten wider due to a bunion and I couldn't even pull enough Velcro on my old ones the ratchet system really helps

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Reviewed 1/9/2023
by Anonymous
Cycling Enthusiast
Tucson, AZ
Overall Rating
SIDI Men's Genius 10 Mega

Good cycling shoe. Rigid sole was immediately noticeable in performance. I made a new PR on a 4 mile climb when I wasn't pushing hard. Of course, a tailwind helped a bit too. But overall, noticeable difference with the new shoe. Only issue is it is rubbing a bit on the left foot metatarsal but I assume that will calm down with breakin so I alternate wearing the old and new shoe assuming the breakin will occur soon.

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