Tyre sizes

[004SXMike]

Hi ive got an XS400 Special 1980 sohc with odd size tyres on it. the manual says the tyre size should be 3.50-18 front and rear. Mine has a 3.60-19 front and a 130-90-16 rear which is rubbing the chain slightly.

 

[xschris]

Any pics of the bike?

 

[16VGTIDave]

Sounds like you may have Maxim wheels installed. Are they alloy wheels with curved spokes?

 

[004SXMike]

No not curved spokes standard Yamaha straight spoke alloy

 

[Lou Ranger]

Must be off a different Yamaha model. The sohc G/SG & H models had 18" and 16", but not as wide as yours: