I've never dragged a knee or a peg but I've dragged my exhaust. I've heard of people dragging the lower fairing where there's that slight bulge on the RH side. I'd rather drag a knee before any hard parts. Hard parts might catch on the pavement or lever the tires off the road. A knee can adjust to the lean angle (assuming it's protected by suitable gear). The knee also indicates how far the bike is leaning because it must be pulled back inward as the lean angle increases. Moto GP riders aren't reaching out with their knee at all when at full lean. They have to pull the knee back inward because there's no more room between the track and the bike. The knee is still dragging because theres nowhere to pull it out of the way at that severe of an angle.
I hang off my bike in the parking-lot track,
in both of the two corners when riding 25 to 33 mph,
maybe I could go faster on the 'track'
if I didn't lean off the bike as much, bringing the bike
down to a greater angle.
The more the bike leans, the more likely it is to lose traction. If you lean yourself, you don't have to lean the bike as far. But if you want to lose chicken strips, the way to do it is lean the bike. I got down to about a quarter inch chicken strip on the rear and I did lean off. The front had a much larger chicken strip than the rear.
I'm going to put some white fingernail-polish-stripes
on my tires like I had done with my Gold Wing so I can
see how much of the tire I'm using in turns, this am.
If the tread of the tire isn't roughened, that part of the tread has never touched the road. You can use a stripe of white paint but all you really need to do is look at the chicken strips. I doubt if an eighth inch wide stripe of paint across the tread is going to cause you to slip but people do warn of cornering hard over the paint stripes on the road. Personally, I'd avoid stacking the odds in favor of slipping.
Overall I think I'm asking; how far
leaned over (stock pegs, not rear sets) can I be
while maintaining good or safe-enough grip.
It can depend on the suspension set up and the muffler and tire pressure might have something to do with it too. Cornering clearance can also depend on small humps in the road. The lower bend of the muffler is what dragged first on my Gen1 but I did have rearsets. I never dragged a foot peg but I can tell you, Vortex rearsets adjusted to their highest and farthest back position should allow for a greater lean angle. The bottom tip of the rearsets are approximately an inch higher off the ground than stock. Most importantly, the rearset foot pegs are a whole inch shorter than stock pegs. ...so not only are they higher, they're not reaching out at the road as far when the bike's in a hard lean. However, my muffler is sticking out pretty much and it's situated a lot lower so it will definitely scrape before the foot peg. I just had a quick look at the foot peg/stock exhaust configuration of my 14R. It doesn't look as though it would offer superior cornering clearance to the Tsukigi exhaust I have on my Gen1. The stock exhaust sticks out about the same amount. The stock exhaust will interfere with both left and right cornering where the 4-2-1 Tsukigi has no exhaust on the left. The stock foot peg pivots which would allow the bike to lean farther if the peg did touch down. Rearsets don't pivot. I refer back to initial comment about dragging hard parts. I don't think it's safe.
Would this generally equate to me being able
to increase speed in my 1/10th mile track until
I'm using the other 16 mm of tread, at which point
the extended nubs on the pegs would be scraping
or close to it? Max, 'safe' lean.
The smallest chicken strips I ever had from road riding was about maybe a quarter inch on the RH of the rear tire. I had no chicken strip from track riding but that was with very low tire pressure. In both cases, my exhaust scraped before the rearset A quick look at the stock 14R, hold a straightedge from centerline of front & rear tire tread to bottom tip of foot peg. This represents the maximum lean angle before something touches. The foot peg will drag before the exhaust even if the feeler pin is removed. That's with no rider weight on the bike. Rider weight wouldn't change the spacial relationship between the foot peg and the exhaust. It would change the relationship from the exhaust and the centerline of the treads. Lower the bike, the exhaust comes closer to crossing the line from the tread centerline to tip of foot peg, the max lean angle. Rider weight also lowers the bike. This all came from experimenting with measurements on my Gen1. It was the closest I could get to assessing the max lean angle without having rider weight on the bike and the bike standing vertically of course. When the bike leans, it actually isn't riding on that center line of the tread, it's riding a few inches out to the side of the center of the tread. This might seem to improve lean angle clearance but you have to remember, the tread of the tire also forms a smaller circle the farther out to the edge you go. This lowers the bike...so the smaller diameter plus farther away from center probably more or less cancel any advantage or disadvantage each may offer.
my bike
is lowered about 1.25''.
If your bike is lower, you have less cornering clearance. You might find a way to raise the foot pegs but there's no way to raise the exhaust. Raise the pegs and you'd be getting closer to my situation where the exhaust drags before the pegs. Vortex rearsets add about one inch of height at the bottom tip of the peg. They also protrude an inch less than the stocks. The exhaust can't be tucked inward out of the way so now it's the victim when the bike leans far enough. You moved the foot pegs out of the way but you can't move the exhaust.
08 MIDNIGHT SAPPHIRE BLUE ZX-14 Now Deceased, will be resurected
2024 ZX-14R bran friggin NEW!