My new rivet master link(s) showed up, so I could finally install the 42T rear sprocket that showed up a while ago. The sprocket setup is now
17/42. I took it for a test ride on the highway, and this thing is a friggin DREAM to ride at higher speeds! At an indicated 75 MPH it is running an indicated 4500 RPM. Again, indicated stuff here: A stock geared bike will show 4000 RPM at 53 MPH, my bike now shows 3000 RPM at 50 MPH.
Roll on performance in top gear is pretty abysmal below 50 MPH, but is just fine at 70. An acceptable smooth "idle" speed in 1st gear shows 9 MPH.
It doesn't like 6th gear below 38 MPH.
ACTUAL RPMs vs speed for this new gearing are as follows:
45 MPH: 2707
70 MPH: 4211
Quote:
Originally Posted by jkv357
Why would you risk it? Just use Rotella T5 10W-30 or a 30-grade cycle oil like Motul.
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Motorcycle oil is very expensive, and generally has mediocre performance compared to car oils as far as shear resistance. We can assume we need to buy their expensive specific oil, or we can think outside the box a little. Maybe put some pressure on the oil companies to make better oil cheaper. I'm going to run this thing for a few thousand miles before swapping to the DL650 cams, so if any damage is going to occur, that is where it will show up.