Hi, first time in but a 80's rider who remembers the good old days riding at romford & broad marsh (jumping over the tramps on the benches) .

quick question are the sx pedals for sale genuine old stock or new ly made retro's cuase their seems to be endless stock of this thing.

For sale where? There are a lot companies that make very similar pedals to Shimano SX or (PD-MX15) pedals. Victor, Union, etc. make copies. There are still quite a few authentic Shimano NOS sets floating about too. PD-MX30 pedals are the larger DX Shimano pedals that are much more highly sought.

HERE is a good article about the famous pedals. I hope this helps...

NS Shimano PD-MX30



OS Shimano DX pedals

The SX pedals are fairly common. They are not repos, they are just more easily obtainable because they are not as desirable.