Exotek 12mm hexes x-ray xb4
 

Possibly wild goose chase for front and rear 12mm hexes for xb4

I'm advised 5 or 5.5mm for front and 8.5 or 9mm for rear unless x-ray experts can advise me different. I have an xb4 15 currently on 14mm hexes but have lots Schumacher 12mm rims

Hope someone may have old set not been used
Regards Dave