Competitive Cyclist
Performance
Pro Bike Kit
Nashbar


Performance is great for delivery, return policy, etc. CC costs a little more, but IMHO has better quality products and great return policy. PBK shipping a little slow, but they are in the UK, prices are good (average). Nashbar has good prices, but they have run out of a product and cancelled my orders several times now without notification at all. Then refused to give me the same price when they restocked. other than that bad experience, they are ok, but still last on my list.