Just finished anothe spline lube on the old R65. Seems 10,000 miles is a good number for me. Replaced the rear Macadam for a AVON Roadrider 4.00V18 (stock size) that I took off the BSA Firebird and ...WOW. What a change! The handling has inproved dramatically over the 120/90H18 size. I got 17,000 miles out of the Macadam so when the Avon wears out in about 7-8,000 miles I will try the Macadam in the 4.00H18 sixe and see if I get the same result.
Evidence: The bike used to wobble (Neutral to negative stability) above about 75mile perhour. With the 4.00V18 on the rear I can go up to 85 mph with NO WOBBLES. That is quite a change!!!
BTW - I'm still running a 110/90H18 Macadam on the front. At 17,000 miles it looks like the front tire may make 40,000!
TTFN,
