The Sidi Ergo 6 Road Cycling Shoes represent an evolution in performance cycling footwear, combining advanced materials with precision engineering to deliver optimal power transfer and comfort. At the heart of these shoes is the Millennium fit system. This works with the microfiber upper and Dyneema® cable dials to create a secure, personalised fit that prevents foot movement during intense riding. The ergonomic tongue and integrated medial bumpers complement this design, while engineered ventilation keeps feet cool and comfortable during long training sessions.
The technical foundation of the Ergo 6 is its R2FC Full Carbon sole, rated at stiffness Level 11, which efficiently channels power to the pedals. This rigid platform is enhanced by the inclusion of a 75mm adjustable cleat positioning plate, offering 15mm of extension to accommodate various riding styles and biomechanical needs. The seamless heel counter provides additional stability, while the shoe's replaceable sole inserts ensure longevity and maintain performance over time, making these shoes a practical choice for serious cyclists who demand both durability and top-tier performance.
Sidi shoes run small and have a narrow fit. On length: if you're between sizes, size up. On width: if you have a wider foot, choose the Wide Fit version — don't try to compensate with a larger size in the standard.
Pedal Compatibility
These cycling shoes are compatible with road pedal systems utilising the 3-bolt cleat system such as Shimano SPD SL, Look Keo/Blade, Time Atac etc...
| EU Size | Length (mm) | UK Size | US Size |
|---|---|---|---|
| 36 | 225 | 3 | 4 |
| 36.5 | 228 | 3.5 | 4.5 |
| 37 | 232 | 4 | 5 |
| 37.5 | 235 | 4.5 | 5.5 |
| 38 | 238 | 5 | 6 |
| 38.5 | 242 | 5.5 | 6.5 |
| 39 | 245 | 5.5 | 6.5 |
| 39.5 | 248 | 6 | 7 |
| 40 | 252 | 6.5 | 7.5 |
| 40.5 | 255 | 7 | 8 |
| 41 | 258 | 7 | 8 |
| 41.5 | 262 | 7.5 | 8.5 |
| 42 | 265 | 8 | 9 |
| 42.5 | 268 | 8.5 | 9 |
| 43 | 272 | 9 | 10 |
| 43.5 | 275 | 9.5 | 10.5 |
| 44 | 278 | 9.5 | 10.5 |
| 44.5 | 282 | 10 | 11 |
| 45 | 285 | 10.5 | 11.5 |
| 45.5 | 288 | 11 | 12 |
| 46 | 292 | 11 | 12 |
| 46.5 | 295 | 11.5 | 12.5 |
| 47 | 298 | 12 | 13 |
| 47.5 | 302 | 12.5 | 13.5 |
| 48 | 305 | 12.5 | 13.5 |
Sizing note: Sidi shoes run small and have a narrow fit. On length: if you're between sizes, size up. On width: if you have a wider foot, choose the Wide Fit version — don't try to compensate with a larger size in the standard.
Measure your foot by following these steps:
1) Place a piece of paper on the floor with the shortest side against the wall.
2) Put your bare foot on the paper with the heel pressing against the wall.
3) Make a mark on the paper at the tip of your longest toe.
4) Use a ruler to measure the distance between the mark you've just made and the bottom of the paper where your heel was placed. Round to the nearest mm.
Always measure both feet to get the most accurate size. If you find that your right and left foot are different in lengths, it is recommended that you opt for the larger size.
These shoes offer a whole new level of comfort, my previous sidi’s where of the more traditional shape and whilst excellent performers where very tight in the toe box, these ergos solve that problem I haven’t done many outdoor rides with them but have used them lots on zwift and they have been faultless highly recommend
This is my 5th road cycling shoe in the last 10 years, I've owned many Sidi motorbike shoes but never owned a Sidi cycling shoe before. Sidi now have their new "Millennium fit" which is a bit wider, I usually take all my cycling shoes in 44EU even in my Torch shoes, but this time around I ordered 43.5EU, they fit much better and are so comfy that I kept trying them on, before I did my first ride, plus the white colour is a bit more pastel than most other brands, which I think that makes them even better looking
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
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