Author |
Message |
Brewtus
| Posted on Friday, August 17, 2007 - 09:17 pm: |
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I was wondering if anyone else was experiencing this. I am running Perelli Diablo Corsas set to the factory PSI specifications and I have my suspension set up for the aggressive handling specs. that I found here on Bad Web. ( which by the way helped A LOT!) I don't know what it is but as soon as I feel like I am leaned over more than I am used to the front end slides out from under me. I admit that I do have about 1\4 chicken strip on my rear tire, but when I try to lean it over more it just doesn't feel stable. Anyone have any suggestions? By the way I weigh in at 225 LBS with gear. |
Etennuly
| Posted on Friday, August 17, 2007 - 09:39 pm: |
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Try doing it on pavement, I never got much better results than that on gravel either! What position is your body in when you are cornering? You should be leaning and moving into the corner. The other problem I see is that you are from New Mexico, try riding where there are corners and no sand on the road. It is difficult to eliminate chicken strips on straight roads. |
Brewtus
| Posted on Friday, August 17, 2007 - 10:25 pm: |
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I have found some excellent roads here in NM with new pavement and I still feel like the front end will not hold tight. I find that my body position is more towards the center\ front of the bike and I have learned that the centerline of my body should be on the inside of the turn. Have you ever been to NM? We have some of the best twisties in the US. Please come and visit us during the Wicked Twisties events. You can visit Buell.com and see what we have to offer. |
Edonis
| Posted on Friday, August 17, 2007 - 10:36 pm: |
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Try running 36 PSI on the front, and 37-38 in the back. |
M1combat
| Posted on Friday, August 17, 2007 - 11:05 pm: |
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I run 32F/33-34R. What is the condition of that tire? Was that front left on after you swapped the rear? Are you sure it's actually doing that or is it a mental thing? Is the front at the stock ride height? Are you nice and relaxed? Are your shoulders pointed INSIDE the turn? When you hang your butt off you have to hang your shoulders off the same or more. Never hang off with your butt and then cross yourself up to get your shoulders back over the bike. Your spine should be at the same or greater lean angle than the bike. Are the tires warmed up? What part of the turn? |
Midknyte
| Posted on Saturday, August 18, 2007 - 12:03 am: |
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When you hang your butt off you have to hang your shoulders off the same or more "Kiss the mirror" Best advice I've received this year... |
Brewtus
| Posted on Saturday, August 18, 2007 - 11:50 am: |
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Thanks for the replies. The tires have about 2000 miles on them and I heat them up before hitting my favorite road. From what you guys have said I think it might be my body position. I'm going for a ride now to practice. Thanks! |
Gentleman_jon
| Posted on Saturday, August 18, 2007 - 12:09 pm: |
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You might want to take a look at " Sport Riding Techniques" by Nick Ienatsch.
Excellent book by a profession racer and instructor. The kind of book that you keep going back to. Available from Amazon: http://www.amazon.com/Sport-Riding-Techniques-Develop-Confidence/dp/1893618072 |
Jkhawaii
| Posted on Saturday, August 18, 2007 - 01:30 pm: |
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I am not an expert or racer but I do notice that when my front tire feels like it's pushing a little, giving it more gas makes the bike turn. I'm guessing by taking some of the weight and load off the front end? |
Slaughter
| Posted on Saturday, August 18, 2007 - 01:39 pm: |
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I'm betting you are NOT sliding the front. It's probably some other feedback. When the front lets go, the bars INSTANTLY turn in and you have about a half second to unload the front by banging the throttle or lifting it with your knee to get it to stick again before it tucks and you fall. I've only been able to save losing the front end about half the time it's happened on the track. Half the time I fall. (Message edited by slaughter on August 18, 2007) |
Adrian_8
| Posted on Saturday, August 18, 2007 - 05:01 pm: |
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Kiss the Mirror is great advice....just be sure you kiss it on the side you are leaning toward..many guys are "wrong side kissers". |
Xbullet
| Posted on Saturday, August 18, 2007 - 05:08 pm: |
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"wrong side kissers". « ..... i'm tryin' to picture that position... |
Odinbueller
| Posted on Saturday, August 18, 2007 - 05:41 pm: |
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This is something mentioned to me at Buell Chassis & Powertrain classes at Milwaukee; The 2004 XB9SX introduced a new, upgraded steering head bearing that was specific to that model due to the Pirelli Scorpion Sync tires, and then was used across the entire XB model line in 2006. The instructors stated that, of course, you shouldn't change the tires from OEM, but if someone wanted to go to the Pirelli tires, you would need to get the new steering head bearings. Not sure if this is part of the problem, but something to consider. Chris |
Surveyor
| Posted on Saturday, August 18, 2007 - 06:06 pm: |
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I'm inclined to agree with Slaughter it's probably not pushing your front end it just feels that way - I grant you it's a horrible sensation. My 748r did exactly the same thing and it was really scary. I never found the cause but I re-setup the suspension and played around a little with tyre pressures and the problem 'went away'. In reality I think the problem was me and going through the process of setting up the bike again sorted me and the bike out. |
M1combat
| Posted on Saturday, August 18, 2007 - 06:55 pm: |
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Correct
Incorrect
Incorrect
Incorrect
|
Xbolt12
| Posted on Sunday, August 19, 2007 - 12:46 am: |
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Cold tire? |
Buell_41
| Posted on Sunday, August 19, 2007 - 01:18 am: |
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too fast for that road surface? |
Ceejay
| Posted on Sunday, August 19, 2007 - 03:06 am: |
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Somewhat off topic but NM does have some of the coolest roads around-I used to pass cars on the inside coming down from Sandia peak-on a bicycle! If your in Alb have you ever taken tram road down to the valley(can't remember the name)? get going about 90 put her in neutral and see how far/fast you get I don't have answer for the front end sliding though |
Bartimus
| Posted on Sunday, August 19, 2007 - 10:30 am: |
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Ceejay, The tram road is called Tramway, and it's on the west side of the mountain. You are probably thinking of the road on the east side of the mountain that goes up to Sandia Peak. This is a very nice, curvy road, that many of the sport riders frequent on a regular basis. I've done the neutral ride down from the peak, and it's rush, listening to the tires singing, and the wind rushing by as you lean from corner to corner. As for the front end sliding, I'd worry more about whether or not the bike had something done at Santa Fe/HD-Buell. They are terrible about the quality of work done there. I'd double check EVERYTHING before riding a bike that had been worked on there. |
4cammer
| Posted on Sunday, August 19, 2007 - 02:17 pm: |
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"Total Control- High Performance Street Riding Techniques" by Lee Parks Very well written by a fella that knows what he is talking about. Convinced me that my riding was crap, and helped me improve quite a bit. Makes some darn nice gloves as well! |
Mcgiver
| Posted on Sunday, August 19, 2007 - 02:20 pm: |
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Larry Pegram (#72) dose indede have a different style, he always has. But he has done pretty well over the years, and got 2nd at Virginia yesterday.Brian |
Jkhawaii
| Posted on Sunday, August 19, 2007 - 02:42 pm: |
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it's funny how every rider has a different style but seems to get the job done just fine. like in AMA mladin and spies ride totaly differently but are so close in lap times. than like miguel duhamel he rides kinda like pegram were he does not hang off the bike much at all. |
Sslowmo
| Posted on Sunday, August 19, 2007 - 03:05 pm: |
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pay for a corning school! will help big time. |
Steve899
| Posted on Sunday, August 19, 2007 - 09:25 pm: |
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Tire press and heat, I run 32psi ft , 30psi rear cold on my 05 XB12R I weight 215lbs. Rear tire always runs less cold press than the ft. Check the press after you run some twisties, the tires may jump to 36psi both ft and rear once there hot. |
Acejay
| Posted on Tuesday, August 21, 2007 - 02:51 pm: |
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i see you have only 2000 miles on them, but they are corsa's so im guessing they wear reasonably fast. if all those miles are in a straight line then your tyre might have squared off some. i find my bike feels especially crap on a worn front tyre. it feels edgy and zaps your confidence in corners, and seems to be from leaning over and going from the transition from flat in the middle of the tyre to leant over. it gives me the same slidey feel at the front of the bike. a 1/4 inch strip on your rear is a lot bigger on the front, so i cant see that you would be travelling fast enough to cause the tyres to slide. my ordinary diablos have masses of grip right on the edge. also try setting the bike back to the standard suspension settings as per the manual, it may make the bike a bit more forgiving of your inputs while cornering. |
Wolfridgerider
| Posted on Tuesday, August 21, 2007 - 03:16 pm: |
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Are you coasting in the corner or rolling on the throttle? Make sure you have all your braking done BEFORE you enter the turn and use a steady role on all the way through the turn. This will keep the weight even on both front and rear tire. If you are costing or using the brake all the weight (yours & the bikes) is on a contact patch no bigger than you palm on the front tire. |
Yabuell
| Posted on Wednesday, August 22, 2007 - 10:59 pm: |
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I'd try to tail brake a little. Ever so gently ride your rear break through the curve. This will keep the rear of the bike more stable during the turn. |
Dentguy
| Posted on Thursday, August 23, 2007 - 10:23 am: |
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I wouldn't call Pegrams style incorrect just because he is not hanging off the side. He is very fast. Just hanging off the side does't make you smoother or faster. |
Dentguy
| Posted on Thursday, August 23, 2007 - 10:42 am: |
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Please don't ride the rear brake through a turn. Nothing personal Yabuell. You could hit a bump in the turn, accidentally get too much rear brake and break the tire loose. You can upset the suspension in the turn, also breaking the tires loose. You will eventually go down. |
Yabuell
| Posted on Thursday, August 23, 2007 - 11:25 am: |
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Oh no ,i'm not taking it like that at all. Have you tried it? Do you have any idea how many pros use this method? |