get this then.
You are only liable for any diminished value of the goods resulting from handling other than what is necessary to establish the nature, characteristics and functioning of the goods. The retail sales value of a used item is generally 60% of the new, unused value. THIS APPLIES EVEN IF A BIKE HAS BEEN RIDDEN ONLY ONCE. Please therefore ensure that the item has not been used at all unless you are likely to receive only 60% of what you paid for it when new.
Terms & Returns Information from e-bikeshop.co.uk.
www.e-bikeshop.co.uk
so if you buy a bike from him dare open the box put the wheels on it and find it is the wrong size you will only get 60% back and that is a breach of trading standards.
tho he does list them 1-2% lower on his site
so you can have a dongle and warranty but you have to deal with that a$$hole