After a good service my RTR ran for some 300km or less..The bike was normal & pick up, acceleration was very normal..After I changed to Shell Ultra 10W40,did around 40km & the bike was feeling a bit sluggish & a few more kms the bikes speed would drop down while ascending slopes..& some times on a highway when I was doing 90s & when the road would incline the bike's rmp would drop & eventually the speed would drop to 70s..
After riding for 800km(approx) on the FS ,bike was better on inclines & sluggish had decreased automatically(I did nothing to the bike,not even a wash)..
Now after another service,the bike is amazing,actually smoother & better gear shifts..No sluggishness what so ever..(Totally 1.4k km done on the F.S oil)
I spoke to a few mechanics & even read a post in the Engine oil thread,That F.S & a non recommended engine oil grade would make bikes sluggish(as mechanical energy produced is wasted on splashing the oil (high viscosity oil) from the sump to the end reaches of the crank/cylinder head..) & the reason for the automatic restoration of performance, is that the oils slowly(slower in F.S than mineral) lose their viscosity..
Well this was my personal experience & this might not happen with all RTRs...


white 180 with ABS!
Lesson to learn :/

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