Thanks for reply's...
checked the numbers and the mini spikes are the BIBX ones.
Front - U6566-l - BIBX
Rear - U6565H - BIBX
kind of gives it away
the full spikes must be old ones...
Blue Front U6529X (these appear to be 2.2")
Blue Rear T687E (not much info on these)
Red Front T653W (no info)
Red Rear T651U (no info)
Thanks again.