If I'm correct your first number is width. So 120 is 120mm and the other tire you want to swap is given in inches. Convert 120mm to inches and the stock tire is 4.72 inches. I'd say the tires are too narrow for the rim to do the swap.
Sent from my iPhone > On Mar 17, 2016, at 8:20 PM, [email protected] wrote: > > I need some help determining if I can use Coker Fiirestones on my hardtailed > bobber (formerly a 1982 CB750 Nighthawk). As you know, the Nighthawk has the > solid "star" mags instead of the usual Comstar mags, along with different > stock tire sizes than most DOHC CB750 bikes. I think using them with tubes > will be fine but I can't figure out the correct size for the Cokers. This is > what I want to do: > > Stock Front is 120/90/18 and I want to use a 4.00/18 OR 4.50/18 Coker > Stock Rear is 140/70/16 and I want to use a 500/16 Coker > > Does anyone know if there are issues with this swap? > > Thanks > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/nighthawk_lovers. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/nighthawk_lovers. For more options, visit https://groups.google.com/d/optout.
