ok thinking of havin a go at next race at hersden , the tyers on my dyno are well err little skiny only 1.75 some dodgy make called v rubber , iv got a 2.00 maxxis maxdaddy lyin about or could rob the maxxis holly roller off the front of my mongoose but thats real wide 2.20 but grips great , so in your vast experiance what will work best