Here is a logical answer to your question........................
Yes, if you only ride 1/3 of the miles required to be reasonable to change your oil.... then put your RC-51 (or any motorcycle, vehicle away for a period of time) for the winter..
WOULD YOU walk a 1,000 miles, then get home and crawl into bed with your dirty clothes, and your sweat ??????
Why would you leave engine contaminate (dirt, gas, carbon, clutch material) to lay on the components (crankshaft, bearings, clutch plates, clutch springs, etc.) for what ever period you choose to not ride the bike????
The oil filter can not, does not gather all the contaminates in your engine (proven facts)
Make , LET your engine live, and save your money (in doing repairs) Change your oil ($20.00 compared to rebuild, $700 -$1500)