[1976 RS100 Tires]

Thank you.  I was thinking the tires on the bike when I got it were the originals (very bad shape), so I'm going with 2.5-18 and 2.75-18

 

Bob

[1976 RS100 Tires]

I recently acquired a 1976 RS 100C with less than 5K miles.  It doesn't need much attention, but I want to replace the tires.  The bike came with a 2.5-18/front and 2.75-18/rear.   The Owner's Manual says these were the proper tires, but my Haynes Workshop Manual says 2.75-18/front and 3.00-18/rear.  Can anyone tell me which is correct and/or recommended.  I'd like to stay as close to "original" as possible.

Thanks,

Bob

[New Yamaha Owner]

Thanks Blackhat.  I have the green one.

[New Yamaha Owner]

Purchased my first Yamaha:  1976 RS100C.  The bike is in very good condition and I don't plan on a major restoration effort.  I've rebuilt the carb and replaced a few items, but it is running.  My next project is to replace the tires.  The bike came with a 2.5-18/front and 2.75-18/rear.   The Owner's Manual says these were the proper tires, but my Haynes Workshop Manual says 2.75-18/front and 3.00-18/rear.  Can anyone tell me which is correct and/or recommended.

Thanks,

Bob