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Old 03-18-2008, 09:09 AM   #1
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Understanding my lowside. Godzuki?

I had a lowside between turns 17 & 16 @ MSRH. This involved a lot of 1st's for me. 1st time on this track, 1st time on this bike (SV-650), 1st time on new Pilot Power 2CT's, 1st ever lowside.

Immediately afterwards Tim said "if you had gotten off the side of the bike just a little more you could have made that corner". I'm fine with that, cuz I know I need to work on body position. But what else is involved? Pace was about 2:02.

On my Daytona, I have taken the horseshoe @ TWS (Texas World Speedway) pushing harder and hanging off less with better results. That was last summer, dry and hot. Tires were Pirelli Demon Super Corsa (OEM stock).

Do I have less lean to work with due to the narrower rear tire on the SV? I wouldn't think so after seeing the lean angles reached on 250 cc bikes with less tire width. I didn't drag anything. Was I too wide on the corner? Track conditions? I was using steady throttle at that point, no brakes, and I honestly can't remember if I made a midcorner adjustment or not. Maybe Tim knows.

I'm quite sure I'll make other mistakes but I want to fully understand this one so that I don't repeat it.
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Old 03-18-2008, 09:15 AM   #2
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lowsides are generally caused by front tires gettin tucked

when going through a turn, the transferable weight of the bike should be even....which means when you are at full lean, you want to give it a little gas to keep some of the weight on the rear wheel, otherwise the engine braking puts most of the load onto the front of the bike and can cause the front tire to push out. body position also plays a role in all of that, if your upper body is weighting down the front, while your is hangin off (called being crossed up), that also puts unnecessary load onto the front of the bike and can cause the front tire to slide out from under you.

hope that made sense.
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Old 03-18-2008, 09:20 AM   #3
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Quote:
Originally Posted by houseofpain View Post
if your upper body is weighting down the front, while your is hangin off (called being crossed up), that also puts unnecessary load onto the front of the bike and can cause the front tire to slide out from under you.

hope that made sense.
That's interesting ... I found myselft way up on the seat a lot ... should I try to sit further back on the seat?

Sorry for hijacking your thread.
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Old 03-18-2008, 09:22 AM   #4
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how many laps had you done in that session when you went down?

^ Logan, alot of it is just personnal style, yes you load the ft up, doesn't nec. mean it's bad as long as you know what your doing.
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Old 03-18-2008, 09:24 AM   #5
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I just happened to see the low side from the pit area, I was hanging out by the Motorcycles Unlimited trailer at the time. It did look like the back let go first.

I breezed through your post kinda quick. Is your suspension set up for you? What were your tire pressures? How old is the rear shock?
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Old 03-18-2008, 09:32 AM   #6
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Quote:
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how many laps had you done in that session when you went down?

^ Logan, alot of it is just personnal style, yes you load the ft up, doesn't nec. mean it's bad as long as you know what your doing.

probably 2/3 thru the session. 1st session after lunch.
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Old 03-18-2008, 09:32 AM   #7
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You entered turn 17 a bit on the wide side. As you were drifting out, you were over correcting, and leaning much farther. If you had been off of the bike more, as opposed to being directly in line with the bike, while almost skimming your pegs, (yes you were leaned that far) your bike would have been more upright, and you could have easily made that corner by applying more lean angle. As it was, you basically just over ran your edges.

So, recap sequence of events:
pace was great.
Entry speed was fine
Turn in was late
Body position was way off
Applied more lean when you were already on your tire’s edges
Ran out of tire
Perfect slide
Awesome expression on your face!

You didn’t get on the apron before you lost the front, and you were still on the racing line, but by having your body off of the bike, you can carry more speed for a given radius with less lean angle.

Does this help?
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Old 03-18-2008, 09:35 AM   #8
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Quote:
Originally Posted by 04RSVR View Post
I just happened to see the low side from the pit area, I was hanging out by the Motorcycles Unlimited trailer at the time. It did look like the back let go first.

I breezed through your post kinda quick. Is your suspension set up for you? What were your tire pressures? How old is the rear shock?
Suspension set up by Motorcycles Unlimited. Ohlins rear shock (unknown age) checked out by Motorcycles Unlimited. Patrick had just gone thru the bike, so I'm fairly certain that all was in good working order. Tire pressures cold 30 rear 28 front. Hot pressures 34/33.
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Old 03-18-2008, 09:41 AM   #9
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lol, wow you were cranked over if you were about to touch the pegs down, and i;m assuming that bike has aftermarket rearsets that are "higher" then factory


yes the SV loves to lean

so how was the bike?
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Old 03-18-2008, 09:44 AM   #10
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Quote:
Originally Posted by Godsuki View Post
You entered turn 17 a bit on the wide side. As you were drifting out, you were over correcting, and leaning much farther. If you had been off of the bike more, as opposed to being directly in line with the bike, while almost skimming your pegs, (yes you were leaned that far) your bike would have been more upright, and you could have easily made that corner by applying more lean angle. As it was, you basically just over ran your edges.

So, recap sequence of events:
pace was great.
Entry speed was fine
Turn in was late
Body position was way off
Applied more lean when you were already on your tire’s edges
Ran out of tire
Perfect slide
Awesome expression on your face!

You didn’t get on the apron before you lost the front, and you were still on the racing line, but by having your body off of the bike, you can carry more speed for a given radius with less lean angle.

Does this help?
Thanks !!! I should have taken the time Sunday to go over that with you but I was a little wound up at the time and just wanted to get back on the track before I had too much time to dwell on it. Spent yesterday thinking about it and thought I remembered the rear going 1st but wasn't sure. I didn't realize I was that far over with my lean. I need to get that knee out there and use it as a lean gauge.

Yes, that helps a lot. Thanks again and thanks for a great time Sunday!
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Old 03-18-2008, 09:50 AM   #11
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Thanks !!! I should have taken the time Sunday to go over that with you but I was a little wound up at the time and just wanted to get back on the track before I had too much time to dwell on it. Spent yesterday thinking about it and thought I remembered the rear going 1st but wasn't sure. I didn't realize I was that far over with my lean. I need to get that knee out there and use it as a lean gauge.

Yes, that helps a lot. Thanks again and thanks for a great time Sunday!
not a problem Carl! You remember your rear going first because you slid first into the gravel!

Are you coming out to GSS next weekend? Only $140, and we're renting the extra large tents to provide a covered paddock area for the riders!
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Old 03-18-2008, 09:53 AM   #12
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lol, wow you were cranked over if you were about to touch the pegs down, and i;m assuming that bike has aftermarket rearsets that are "higher" then factory


yes the SV loves to lean

so how was the bike?
All in all, I was really impressed with the SV. Especially, after going down and only having to readjust one clipon before getting back on the track.

It feels bigger and wider than the Daytona and has a completely different power band. It definitely required some getting used to. Also, no tach or speedo for reference so I was riding by the seat of my pants. I just need more time on it to get used to the feel.

Vortex rearsets.
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Old 03-18-2008, 09:54 AM   #13
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I saw the bike after the wreck, it crashed with hardly a scratch. I think the tail, clip-on, and upper had some light rash. The clip on was rotated back but not bent, just needed to be loosened and re-positioned.

Bike looked good! Sounds like Navigator learned a lot from this crash and got away with relatively low damage.
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Old 03-18-2008, 09:59 AM   #14
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I take a lot of pictures at the cmra events and one thing that I have noted about when someone with a yellow number plate lowsides. There is a much greater likely hood that they had a finger covering there brake then the ones that did not lowside. If they have a white plate they were just going beyond the bikes limits or got screwed up in traffic.

In short I take my finger away from the brake as the bike is leaned.

this may or may not be relevant to your case.

I always say if you can't learn something from your crash why bother crashing.:/:
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Old 03-18-2008, 11:30 AM   #15
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I think people tend to overanalyze crashes Basically your tire slid and you weren't able to feel it in time to back off. It happens. With experience you will get better feel, but everyone runs out of talent sometime. Wouldn't worry about body position personally.
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Old 03-18-2008, 11:35 AM   #16
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I think people tend to overanalyze crashes Basically your tire slid and you weren't able to feel it in time to back off. It happens. With experience you will get better feel, but everyone runs out of talent sometime. Wouldn't worry about body position personally.



There are things you know that is your mistakes then there are crashes that everyone can only speculate.
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Old 03-18-2008, 11:49 AM   #17
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i just took a big ... can anyone explain why that happened
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Old 03-18-2008, 11:52 AM   #18
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i just took a big ... can anyone explain why that happened
was it runny or bricks?
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Old 03-18-2008, 12:07 PM   #19
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was it runny or bricks?
frickin bricks ! tore me a new one
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Old 03-18-2008, 12:13 PM   #20
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i just took a big ... can anyone explain why that happened
because your head was already too full of it?:dontknow:
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