View Full Version : Slipping rear on right turns
motorico 06-11-2008, 08:55 AM I don't know if anyone else has had this experience but it has happened to me three times.
I am making a right turn from a stop and get my lean on and about half way through I can feel the back trying to bust loose. Every time it has freaked me out and I know I need to practice this so I stop chopping the throttle. All three times have been in an intersection so debris could be a factor. I have also looked at my tires and I don't see anything that would make the tire slick. I may be missing something there but I can't say either way.
I was wondering if anyone had some insight. I haven't had the issue on left turns, but I don't lean as much on left turns. I feel more comfortable leaning right. I know I need to practice but I am so reluctant to scratch up my shiny ride. I guess I have to get my old bike running and on the street. Hmm, for the money I could probably fix any damage though.... But honey, my exhaust is scratched and that new Mivv exhaust cost less than stock (a lot less).
Transient 06-11-2008, 10:38 AM The engine can be a finicky in the low-RPM range. At least on my bike. It can be choppy even with proper throttle control if you don't give it enough. Give it too much, though, and you're in the next lane altogether, so it's a balancing act. On top of that, considering the physics at work on a motorcycle, if you don't have enough speed going there isn't going to be enough force trying to set you upright to adequately combat gravity.
That said, I'm not sure that a start from a complete stop is the place to work on lean angles for a combination of the reasons above. Then again, I'm often wrong and I could be missing out on leaning. :thinking
lloydman 06-11-2008, 11:02 AM always try to be smooth on the trottle when the bike is leaning.. at all speeds. in fact, never abruptly accelerate when in a sharp lean (unless you're in the dirt and want to on purpose)
I lowsided on the track once, sharpest turn on the course, and everyone said the same thing to me.. something to the effect that: none of us, even the pros, make up time on this turn. Wait til your bike is upright before you accelerate.
I think the same can apply to an acceleration from a stop/turn.
theguyfromthere 06-11-2008, 02:27 PM ..none of us, even the pros, make up time on this turn. Wait til your bike is upright before you accelerate.
+1. There are definitely turns out there like that; they don't call it "playing it safe" for no reason. Like Transient said, you can't lean and roll on hard if you're not going that fast in the first place. Maybe the 90 degree turn after the stop light isn't the place to drop a knee.
I stumbled upon this (http://www.tlzone.net/forums/what-i-learned-today/11658-swerving-warm-up-tires.html) and found it to be interesting... I'm guilty of weaving a bit before hitting the turns. I guess I'll still do it because 1) can't believe everything you read in forums :wink: 2) it still gets any debris of the gums and 3) it's fun.
JHenley17 06-11-2008, 02:40 PM I weave when I'm bored with a ridiculous speed limit...
I don't think the bike makes enough power below 5k to break the rear loose unless there's debris or you're scraping pegs. I get on it pretty hard sometimes without problems.
mitsurugi 06-11-2008, 04:41 PM Every time it has freaked me out and I know I need to practice this so I stop chopping the throttle.
I'd say that this is a primary culprit of what you are experiencing. The bike can be a bit finicky in the lower rpms, so just practice on accelerating smoother a bit more.
Zoomnbyu 06-11-2008, 05:49 PM I agree on the finicky throttle but make sure that you aren't running through any fluids when you are coming to a stop. My thinking is that you are riding scross the center of the lane as you come to a stop for your right turns. Any fluids, even just water from AC drains could be compounding this issue for you.
G00se 06-11-2008, 06:32 PM Are you sure you aren't hitting the paint from pedestrian crosswalk. That can cause the rear tire to slide out if you're being aggressive with the throttle from an intersection.
I had the same thing happen to me when my tires were new until they got broke in.
On another note take it easy around intersections. People seem to do stupid things like walk out in front of you and whatnot.
You can always feather the clutch in slow speed turns and second gear is smoother than first from the choppy throttle perspective when slow speed turning as well.
lloydman 06-11-2008, 11:31 PM You can always feather the clutch in slow speed turns and second gear is smoother than first from the choppy throttle perspective when slow speed turning as well.
Agreed.. when the throttle is funky.. smooth it out w/ the clutch.
carlitos_92 06-12-2008, 05:40 AM You know, one of the things I've noticed since I started riding a bike almost daily is how many banana peels there are on the road. Seriously. I take note because I always find it kind of funny, but I think I see about one a week.
rndthought 06-13-2008, 12:18 AM Carlitos... I'm guilty for about 4 a week... :oops: They are biodegradable right?
motorico, know this is kinda radical...but have you though about just taking it a bit easier on the right hander? :lol: I think they are the most natural and people push/lean it harder on them... maybe practice shifting your weight(ass) a bit so the bike can sit a bit more upright if "easy" isn't an option. Oh, dunno what a pro would say but I'd keep clear of the "feathering the clutch" whilst leaned over... in turns you generally want to stay as stable and predictable as possible, the feather thing just sounds like a lot-o-trouble.
Transient 06-13-2008, 09:00 AM This has bothered me from the start. I want to be sure that I'm picturing your scenario right. In my head, I see you sitting at a stop sign or a stop light. You're the first in line, so you're really only like 5-10 feet from the actual corner itself. I don't see it!
Carlitos... I'm guilty for about 4 a week... :oops: They are biodegradable right?
motorico, know this is kinda radical...but have you though about just taking it a bit easier on the right hander? :lol: I think they are the most natural and people push/lean it harder on them... maybe practice shifting your weight(ass) a bit so the bike can sit a bit more upright if "easy" isn't an option. Oh, dunno what a pro would say but I'd keep clear of the "feathering the clutch" whilst leaned over... in turns you generally want to stay as stable and predictable as possible, the feather thing just sounds like a lot-o-trouble.
I feather the clutch sometimes on a pretty tight radius traffic circle I go thru every morning. I have the right of way but people blow thru all the time so you have to go slow around the circle and in 1st in can get pretty choppy. That's the only time I feather the clutch unless I'm in second gear at like 12K rpms and I'm trying to get the front wheel off the ground. That's fun too! But I agree that any time you are leaning in a turn you are off the clutch.
G00se 06-13-2008, 12:26 PM Carlitos... I'm guilty for about 4 a week... :oops: They are biodegradable right?
motorico, know this is kinda radical...but have you though about just taking it a bit easier on the right hander? :lol: I think they are the most natural and people push/lean it harder on them... maybe practice shifting your weight(ass) a bit so the bike can sit a bit more upright if "easy" isn't an option. Oh, dunno what a pro would say but I'd keep clear of the "feathering the clutch" whilst leaned over... in turns you generally want to stay as stable and predictable as possible, the feather thing just sounds like a lot-o-trouble.
I feather the clutch sometimes on a pretty tight radius traffic circle I go thru every morning. I have the right of way but people blow thru all the time so you have to go slow around the circle and in 1st in can get pretty choppy. That's the only time I feather the clutch unless I'm in second gear at like 12K rpms and I'm trying to get the front wheel off the ground. That's fun too! But I agree that any time you are leaning in a turn you are off the clutch.
One should avoid using the clutch or shifting for the most part in corners. Unless you aren't committed to the corner.
If you are trying to get the wheel off the ground feathering the clutch at 12k in 2nd isn't going to do shit. If the wheel STARTS to come off the ground at 12k you have nothing left in the motor the wheel isn't you are going to hit redline and shift or bounce it off the rev limiter and the wheel will come down.
You need to slip the clutch around 5-6k to get the front wheel up.
I usually just bring it up on power in 1st from a stop, but i'm not a wheelie maniac.
motorico 06-13-2008, 12:36 PM This has bothered me from the start. I want to be sure that I'm picturing your scenario right. In my head, I see you sitting at a stop sign or a stop light. You're the first in line, so you're really only like 5-10 feet from the actual corner itself. I don't see it!
I am in the turn when the tire slips. I am pretty leaned over and I can feel the back move. I am just going to take it easier practice in the school parking lots now that the kids are out of school. That way I can get some return from my property taxes.
I like to get the wheel off the ground in higher gears on the shifts, I also find trying to ride a wheelie in first is harder than in second. But I really can't ride them far at all. But making a 90 degree turn at an intersection isn't leaning into a turn. I use my clutch a lot when I'm navigating gas stations and that kind of thing. I guess everyone does what's best for them eventually.
Try turning using higher gears and lower RPMs, where the engine will be smoother and use the clutch friction zone. The rear brake is very useful to balance the bike and you can use it along with the throttle.
Transient 06-13-2008, 04:40 PM I am in the turn when the tire slips. I am pretty leaned over and I can feel the back move. I am just going to take it easier practice in the school parking lots now that the kids are out of school. That way I can get some return from my property taxes.
Right, I understand that part. What I'm trying to picture is the start. If you're starting the way that I'm thinking you are, I just can't imagine you getting enough speed to lean with any stability. :thinking
rndthought 06-15-2008, 07:37 PM ...practice in the school parking lots..
Take it easy there too, they spray them things with Teflon I think. Very slick and with a little moisture, like ice.
|