| Author | Message | ||
     Vaneo1 |
I want something that I can mount on my dash somewhere that will tell me how many degrees Im leaning over. Where I lvie there are some fast sliders that cause me to use my tire all the way to the edge of the tread w/o me putting a knee down. So, does anyone know of anything that will determine lean angle? Im thinking a boating store like West Marine, but I dont know if they sell anything small enough to mount where I can see it while riding. | ||
| Spectrum |
Here's some ideas: http://www.sjdiscounttools.com/cen6494.html http://www.amazon.com/gp/product/B0002WRIF6/ref=nosim/002-8674829-2203216?n=1568 4181 | ||
| Henrik |
Wouldn't a purely mechanical angle indicator be if not useless, then at least highly inaccurate because of the centrifugal forces involved in leaning/turning? The boating "lean" indicators I've seen have all been basic pendulum types. Henrik | ||
| Diablobrian |
the problem with that type of device is that they are dependent on gravity to determine the angle of lean. This makes them inaccurate when traveling because of the error induced by lateral forces generated when going around a corner. An electronic gyro stabilized inclinometer would be a better choice, but expensive. | ||
| Diablobrian |
Great minds think alike! | ||
| Vaneo1 |
ait, Ive had a little do drin tonight. so are we talingk dsomething with a bulbble in that will shift with force? | ||
| Vaneo1 |
gotta love them mudlsides? | ||
| Jlnance |
Vaneo1 - You need a gyroscope of some sort. The problem with the boat thing or the bubble is that they are using the force and direction of gravity to indicate which way is truly "down." That works so long as nothing is accelerating too rapidy. But a turning bike IS accelerating rapidy. This acceleration generates forces which make it appear that gravity is comming from elsewhere. This confuses the readings. | ||
| 99buellx1 |
Ummm......I think that if you are looking at an angle guide while in the middle of a corner, you are paying attention to the wrong sutff, and are just asking for trouble. *not intended to piss anyone off, just lookin out for ya* The only way I would do one is if it would show maximum lean angle achieved. This way it could be checked at the end of the ride when it's safe. | ||
| Josh_ |
Lean relative to what? a theoretically flat road? or a real world road with a bank/camber/pitch not to mention crown and ruts? | ||
| Slaughter |
Won't ever work. Gyro can get you some sorta readings after the fact but there's just nothing that'll work EXCEPT a camera and a horizon line reference in the screen. | ||
| Blake |
Wouldn't a simple accelerometer be made to work being that g-force should be proportional to lean angle? At least once for when lean/cornering in a steady state mode? I can see how the transients would cause big errors. | ||
| Diablobrian |
Hey Slaughter, a gyro stabilized indicator like the artificial horizon in an airplane should have no problem dealing with lateral forces. I agree it should have a record function to avoid the need to look at it mid-corner. That sort of rig would tend to be rather expensive and pictures would tend tend to be far cheaper, if you can find curves with a clear horizon or vertical line to use as a reference to measure against. | ||
| Johnnylunchbox |
How about a series of curb feelers, each mounted so as to touch down at a predetermined angle of lean and each with its own color coded dash mounted LED so you'll know green = 30 deg., yellow = 35 deg., red = 40 deg...you get the point. (Message edited by johnnylunchbox on August 18, 2006) | ||
| Blake |
You'd have to know suspension compression for the curb feeler approach to work. Plus it wouldn't know if suspension compressed due to bump or lean or both. | ||
| Johnnylunchbox |
Blake, we're not talking about dial calipers here. There is a slight margin of error in my system. What is indisputable though is that you'd also most certainly have the most pimpin'est ride and that won't change no matter how much you compress the suspension. Know what I'm sayin?  | ||
| Blake |
On the first point, I disagree. with five inches of suspension travel the error is much more than slight. On the 2nd issue of Pimpin'est ride, you may have a point. | ||
| Sportsman |
If you're using all the tire, open your leg away from the tank, it will touch. Be aware you need pucks or it can tare your knee apart in an instant. If you are on the street doing this, you need to get leathers and get to a track day. If you do this regularly on the street, make out a will. | ||
| Ezblast |
How about a series of curb feelers, each mounted so as to touch down at a predetermined angle of lean and each with its own color coded dash mounted LED so you'll know green = 30 deg., yellow = 35 deg., red = 40 deg...you get the point. I can't wait - a My Favorite Martian bike - lol - great visual! GT - JBOTDS! EZ  | ||
| Mr_grumpy |
I can't help but feel that you're missing the point here somewhere. Lean angle doesn't matter, what's important is that you get round without coming off, as fast as you feel comfortable with, & enjoying yourself. Go ride, have fun, don't over analyze, just do it. | ||
| Tramp |
THANK YOU, MR. GRUMPY!!!!!!!!!!!!!! THIS IS MOTORCYCLING, PEOPLE...... Besides....if you lean too far over, you risk losing your slide rule and pocket protector just ride..... | ||
| Johnnylunchbox |
..you might f-up your curb feelers too. | ||
| Oldog |
On the Gyro instruments, where would you hang them?, try the camera idea, sides No-One leans over farther than BuellGirllie | ||
| Josh_ |
I can't help but point out you do have angle-indicators - your tires. Unless you are scuffing up the edge of the front tire (since you can't measure past that point), or are running very low pressure, you have a pretty good indication of you far over you are going. Try using chalk to mark near the edge of the tire once the chicken stripes are gone. | ||
| Blake |
"you risk losing your slide rule and pocket protector" Hey! That is crazy scary talk!  | ||
| Tramp |
I lean over more than you! No, I DO!!! Nuh-UH! I do! No way, amn! I am the ayatollah of lean! bullsh*t- I lean over way more than you! No you don't yes i do Nuh-UH! Uh-HUH! | ||
| Skyguy |
I leaned over way farther than any of you last night!!!! BTW anyone got an extra front brake lever, clip-on or frame puck? | ||
| Saintly |
The footpeg is usually a good device for estimating lean angle. When you feel it scrape you are sufficiently leaned. http://www.imagestation.com/picture/sraid212/pd80002098a05d2827f2a44a84f73cead/e d6b9884.jpg | ||
| Slaughter |
Sky just uses his bar-ends to feel for the ground. He knows he has leaned at least 85 degrees when the bar ends start dragging.  | ||
| Tramp |
that's something i don't miss about bmw airheads..... rocker-box road-grind |
