Sorry, this product is no longer available!
SiDi Kaos Road Cycling Shoe is no longer available at Merlin Cycles. However you may find an alternative or updated product below.
SiDi Kaos Road Cycling Shoe
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SiDi Kaos Road Cycling ShoeSiDi Kaos Road Cycling ShoeSiDi Kaos Road Cycling ShoeSiDi Kaos Road Cycling Shoe

This item was discontinued 4th December 2020.

If you require help finding an alternative to this product please contact customer services.

SiDi Kaos Road Cycling Shoe


The Sidi Kaos is a great choice of road cycling shoe if you’re looking for an affordable shoe which benefits from the same cutting-edge technology and manufacturing techniques used higher up in the range. Regarded as the little brother of the Sidi Wire shoe the Kaos offers the same fit and feel of its more expensive brother as well as that iconic Italian styling synonymous with the Sidi brand. Featuring a Millenium 4 carbon composite sole with injected carbon fibre in a matrix of nylon to give more rigidity than a standard nylon sole the Sidi Kaos shoe provides superior power transfer through to your pedals while the sole of the shoe is fitted with the standard 3-hole drilling pattern making it compatible with the majority of pedal systems including the Shimano SPD-SL and the Look Keo. Off the bike an anti-slip polyurethane toe and replaceable heel inserts make walking easier and safer.

Sidi have combined a Micro caliper buckle with a twist dial and nylon wire closure to provide a comfortable and ergonomic Techno 3 closure system over the entire length of the top of the foot, allowing you to fine tune fit even when on-the-fly while avoiding unwanted pressure points thanks to their anatomically curved Soft Instep 3 strap with a super-soft EVA pad. Sidi have included a reinforced cup on the Kaos cycling shoe to support your heel and prevent any potential for heel lift when you’re out of the saddle putting the power down.



  • Millennium 4 Carbon Composite sole
  • Replaceable heel inserts
  • Techno 3 closure system with Micro Caliper buckle & twist dial
  • Soft Instep 3
  • Microfibre Vernice upper 
Mr Brousalis The red -white-black are very nice and glamorous. I bought one size bigger than my usual size and the fit is nice. I like the shape feet moulded insole. I haven't wear them a lot but I can't understand why Sidi made so uncomfortable tongue end. On the owners manual they regiment to cut with a pattern the end of the tongue but I am not intended to do that on my brand new shoes hoping to be better on more rides. Overall very nice shoe
Martyn Sexy looking shoe. However many online reviews suggested I needed to go for a size bigger, I ordered the 46 and they seemed massive. I have returned them and ordered a 45, my normal size. They fit much better. Still awaiting a refund.
Mr GARCIA RUIZ DE LEÓN muy buena zapatilla, lo único la terminación de la lengüeta me parece muy dura y no se dobla con facilidad, lo que me roza en la cara anterior del tobillo.
MK17 Worn these for two months now, very comfortable and excellent string fastener and strap combo. Don't ignore what everyone else is saying, this shoe runs quite narrow and the sizing is small (narrow width and in the big toe area). Go half a size up to avoid the returns hassle!
Dave As you would expect, a great product from Sidi but also a fantastic price from Merlin. I couldn't refuse the offer of getting these at the right price. A serious bargain.
Mr Kurata ワイヤー部分の締め付けは微調整可能ですし、走行中も調整が出来便利です。インソールはできがよろしくないのでシダスに交換しました。
Tonka1254 Comfortable shoe, great fit at an excellent price
Dorothy Excellent shoes and excellent customer service - Very pleased
Mr Jones Ordered exactly the same size as I normally buy. I have previously tried one whole size then half a size up but too big despite lots of advice to do so on other sites. Overall nice fit. I did draw around my foot on paper then measured length and compared to the length of a 43 euro on. Stylish shoes, keep them for dry days given the white red black finish. Ratchet system and buckle are easy to use. Stiff sole, I'm no expert but they do feel more responsive given the extra stiffness. Always wanted a Sidi shoe but couldn't justify price until sale.
Dr Gonzalez Those are my second ones, I love the fitting, a little wider than the classic Italian fit, so really comfortable. Superb quality and durability. Shipping super-fast to Colorado US, exactly 5 weekdays
Mr Morales Comodos, livianos, bastante rigidos y con grandisima calidad.
Mr Arminio Zapatillas cómodas y con gran ajuste a la forma del pie al ser la carcasa blanda para no producirte rozaduras
Mr Ng Nice fitting shoes, great power transfer
ANF01 Decided to splash on Sidi after current pair of Shimano shoes fell apart. I have found that the reputation of this manufacturer for quality and style is fully justified. I have a narrow foot and the infinitely adjustable ratchet and Tecno 3 system allows perfect fit. I take a 8.5-9 UK shoe and bought a 44 which is perfect length. First wore them on a very hot day, just a 30 mile spin but very pleased with them.
Shane Excellent product, look great and fit perfect. Outstanding price which is always the norm at Merlin. I now have 5 pairs of Sidi shoes! As my wife often reminds can never have too many pairs of shoes!
Mr Abdullah Good quality and better ventilation then the Level model that I have previously.
Mr tierney Fabulous shoes, bought a half a size bigger than usual, a great shoe, nice and stiff, very comfortable
Arnoldagdagan I am a 1st time Sidi user, I wanted different brand other than Shimano and I believe I hit it right on. Setting up the cleats was fast and easy. Getting in and out of the shoes is much faster. The adjustments using the Techno Ratchet system is a great idea. Don`t really need the heel adjustment as the fit feels already good and comfortable especially on long rides. The carbon sole is stiff allowing better power transfer. All in all the Sidi Kaos is a very good road shoe, you can never go wrong with this shoe. I bit pricey but you don`t put a price on performance and comfort. I highly recommend this product.
Mr ives Bought a pair of these in patent black as I already have a pair of Sidi Genius 5's and have been really pleased with them. The Kaos are even better as the different type of fasteners allow you to gain a better fit, which coupled with the carbon sole, makes them more comfortable and well worth the extra money. Theses are a great pair of shoes and I most definitely recommend them.
Mr Domingo Excellent fit, comfortable adjustment, hassle free, I pair it with Look KEO Blade 2 carbon pedals