^I'm using Pilot Street radials and haven't noticed any difference in fuel economy on my bike compared to the IRC tires.
Well, if your limiting factor is finding taller sprockets, then wish no longer! PBI sprockets offers blanks and custom sprockets. In the 520 size, the blank aluminum sprockets are available down to 32 teeth. If you select the custom aluminum option you can go down to 25 teeth!Yes, I'm running 15/36 gearing now. I wish I could go taller.
Thats interesting, I have a CB300F and I find that I have been upshifting at 4000 rpm if I do it "by ear".Fuel economy does improve somewhat as you get more miles on the odometer. I'm at 8500 miles now... my fill up yesterday was 2.50 US gallons for 200 miles = 80.0 MPG. Thats with 13T front & stock rear sprockets, and an FMF Apex slip on exhaust... I don't ride the bike aiming for max fuel economy. My last few refuels showed 72 to 76 MPG, as those tanks were comprised of spirited riding on high altitude mountain roads with lots of elevation change, and working the gearbox through 7000 to 10,000 RPM's. This last tank at 80 MPG was mostly two lane country roads at fairly steady speeds, ranging between 60 and 65 MPH at 7000 to 7500 RPM in 6th gear.
I have to disagree with those who suggest that an aftermarket exhaust automatically reduces fuel economy. Getting decent MPG's depends far more on how the bike is ridden, and IMO running this engine at low RPM's (well below where it makes good power) doesn't make for better fuel economy. From what I've been reading in the various "CBR Fuel Economy" threads, it's become fairly clear that low RPM operation (under 5000 RPM) is not where better MPG's are at.
Really you're not. Unless you are bumping off the rev limiter, you are not even close tp the mechanical limits of the engine - as long as everything is properly adjusted and your oil is good and at the proper level.Thats interesting, I have a CB300F and I find that I have been upshifting at 4000 rpm if I do it "by ear".
I am a new rider but I feel that upshifitng at 5000 or 6000 rpm sounds like I am putting too much stress on the engine.
I also drive a stickshift car (a subcompact) and I upshift at 2500 - 3000 rpm on my little car also based on "what sounds right".
But I will go by what you veterans say, since the whole point at the end is to get the best fuel numbers.
You recommended that stuff so often you should become a sales person for them. :grin2:One thing that I feel is a good idea for any engine is running a strong fuel system cleaner like Chevron Techron Concentrate (1oz per gal) at least one per season. Techron will remove deposits from the intake valves and combustion chamber as well as clean the injector.
I run it every spring in all my vehicles.