HELLO, DOES ANYONE KNOW WHAT THE LOAD RATING IS FOR TIRES ON THIS BIKE PLEASE? I HAVE JUST HAD NEW ONES FITTED WHICH SAY MAX LOAD IS 230KG, SO IF THAT´S FOR EACH TIRE, SO TOTAL LOAD BEARING IS 460KG, THEN THAT´S FINE, BUT IF IT´S FOR BIKE AS A WHOLE, THEN I´M OVER WITH PASSENGER AND BAGGAGE. THANKS