I am a US size 8. What size should I buy...
I am a US size 8. What size should I buy Sidi road bike shoe?
I have a 40 Shimano and it is too big!
I'm a size 10 and I wear a 41 or 40... so you should go down quite a bit.
if you use the drop down sizing menu for the Sidi shoe that you are interested in purchasing, you will find that the sizing is very accurrate. The sizing chart recommends a 40 for you.
If you hae owned other cycling shoes, be prepared for the best cycling shoe experience of your life.
Sidi seems to have changed their women's sizing over the past 10 years- they even mention this fact on their website. I am a street shoe size 8. My old Sidi Dominators are a size 40, but my new ones are a size 39.5. I'd be interested to hear if any other women are experiencing this, too.
I would find a bike shop and try some on. I'm a women's size 7-7.5 but have possible neuroma and need wide shoes - I bought a men's 40 and LOVE them. They may be too loose for racing, but I can tighten them adequately when needed. I've had them 4 years and I just finished the 2011 RAGBRAI in them. I also put a custom shoe bed in them that requires me to go up in size too - keep that in mind and try on shoes with any insert you plan to use...I don't even want to think about another brand of road shoe.
Sidi's sizing chart seems to quote a bit larger than other Italian shoe sizes; I wear a U.S. 7.5 and usually take a 38 -38.5...just have to try on in your home both sizes that sound like they 'might' fit. Also, Italian shoes are nortoriously narrow! Frustrating...