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cause of a crash

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Old 02-28-2014 | 09:40 PM
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cause of a crash

here us the link to the video that Rnickeymouse captured of my lowside back in September of last year. The mulholland and surrounding canyons are my local spot. about a 10 minute ride from my house.


anyways ive always wondered what caused that crash and a huge number of other people which crash in the same way, particularly at that corner. on his channel you can see dozens of people doing the same exact thing where they are mid corner, leaned over and BAM the front wheel turns sideways and sliding you go. i had never crashed before and havnt since, knock on wood, even riding at a much faster pace. im deffinatley a squid but im learning. so what causes the front wheel to all the sudden turn like that? is it a loss of traction? and why? that day i wasnt riding particularly fast paced or anything.

I think its important to note that i had just got my bike out of the shop having new tires put on maybe a week prior. the tires were deffinatley broken in so thats not an issue. but i did notice a while after that, that when they put my wheel back on they had mounted it backwards. the tire was oriented correctly but the wheel itself was backwards. i wondered if maybe the wheel being uni-directional isnt designed to take those kinds of loads spinning in that direction and possibly contributed to my crash. wondering what you guys thought the reason for that type of crash is.
Old 02-28-2014 | 10:24 PM
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Ham fisted front braking, IMHO.
Old 02-28-2014 | 10:33 PM
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the weird thing is i wasnt even using the brake. at all. i noticed how i had my fingers on the brake which i cant even remeber actually riding with my fingers covering the brake ever. i deffinatley dont do that anymore. i only cover the brake when im actually using it. but anyways i deffinatley wasnt on the brakes even a little. u can see in my pass before the crash my fingers are on it to. i awkwardly blip the throttle but still my fingers are on the brake lever although im not engaging it.
Old 03-01-2014 | 12:25 AM
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I just watched about 10 times, man it's tough to call. Did your foot touch [for the first time] causing a slight pull w/ your left hand? That camera angle doesn't look like an extreme lean angle. With so many crashes in that corner is there some sort of change in road surface, anything slight?

I've seen a bunch of guys wad it up there.
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Old 03-01-2014 | 12:29 AM
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And for the record

Urban dictionary:
1.
Squid
A young motorcyclist who overestimates his abilities, boasts of his riding skills when in reality he has none. Squid bikes are usually decorated with chrome and various anodized bits. Rear tyres are too wide for their own good, swingarm extended. Really slow in the corners, and sudden bursts of acceleration when a straight appears. Squids wear no protection, deeming themselves invincible. This fact compounds intself with the fact that they engage in 'extreem riding'--performing wheelies and stoppies in public areas. Squids wreck alot. Derived from 'squirly kid'

also see stunta
We were suddenly passed by a chromed out R1 and then when we rounded the bend, we saw the squid wrapped around a tree, he'd probably be alive if he was wearing a helmet.
Old 03-01-2014 | 06:58 AM
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i think a couple things play into why people crash there so often. first its a decreasing radius. second it does have a couple changes in road surface that if u hit at the wrong spot things really get squirly. ive hit those spots a hundred times since that crash tho and have made it past every time. the other thing i there is so many people and cars and bikes and flashing cameras and cute girls etc... standing in the middle of that corner where it is being filmed from that 1. it gets really distracting having so much going on in your line of sight, and 2. people start trying to show off and one up eachother for the chicks and the cameras so they push themselves past what they are capable of for that particulr turn. its not even the most technical turn on that stretch of road either. the few turns leading up to that take much more skill to negotiate but thats the one where everyone crashes
Old 03-01-2014 | 08:37 AM
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Understood, but you seemed to be holding a decent line. Trying to figure out your off...I saw no change in surface but I wouldn't in a video. Is it windy right there causing small rubble and/or sand to blow across? It looked like the front tire just gave up the ghost suddenly. I couldn't see if you touched a hard part, which could have probably sent you off if it was firm enough.
The reason I asked about the surface, if you constantly have ppl crashing it could be grinding abnormalities in the road surface, grooves that make the tire loose grip. Your pushing 9/10ths and loose a little road surface, almost like running on the yellow or white paint. That can get sketchy!
Old 03-01-2014 | 08:52 AM
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Camber change at the point the slide begins?
Old 03-01-2014 | 09:13 AM
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I think there's a chance the lower bodywork or left side exhaust may have leveraged up the front. Just a thought.
Old 03-01-2014 | 09:39 AM
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Bad Driving Compilation - YouTube

WATCH THIS VIDEO....This is why I don't ride that piece of road anymore! It's just not worth it. So many other cool roads to ride in Socal.... Why risk all that danger, for what is really not that great a set of corners.

Ride safe! see you at the track someday soon.
Old 03-01-2014 | 10:19 AM
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Originally Posted by speedkelly@aol.com
Bad Driving Compilation - YouTube

WATCH THIS VIDEO....This is why I don't ride that piece of road anymore! It's just not worth it. So many other cool roads to ride in Socal.... Why risk all that danger, for what is really not that great a set of corners.

Ride safe! see you at the track someday soon.
I seriously cannot believe what I just watched. They are putting all the people around them in danger, especially people on bikes. I would never ride that road after seeing this video...
Old 03-01-2014 | 10:30 AM
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Yea I've seen that one and all oh his videos. Seems like such a common type of crash in that corner. An I totally agree speed Kelly, especially Latley it's been nuts. 2 weekends ago to bikes had a head on collision, and the both weekends previous to that a rider each weekend went to the hospital. Lots of idiots. I think people like it cuz they can get low lean angles without to much speed which possibly contributes to a lot of crashes. IMO there's much better canyons surrounding it that are much better. Everyone wants to be king of the mountain. Latley I've been going to watch the chaos and hang with some buddies. What makes it especialy dangerous is that due to the elevation changes between the exit and the entrance, you can't see what's coming the other direction until it's too late. Especially if someone crosses the double yellow. Sketch

And nothing touched the asphalt. I can get a lot lower than I was in that video. Especially with my new rear sets now. I was maybe riding at 5 or 6/10 pace. I never ride full out on public roads.

Last edited by jscobey; 03-01-2014 at 10:35 AM.
Old 03-01-2014 | 10:59 AM
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Looks like from all the vids that the corner radius tightens up. Did you feel as if you leant it a bit more to make the corner and/or throttled back?
Old 03-01-2014 | 11:12 AM
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maybe tugged on the inside bar as corner tightened?
Old 03-01-2014 | 01:34 PM
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It's hard to imagine how the shop could have put the rear wheel on backwards. It just won't fit that way.
I was trying to determine if the brake light went on just before the crash. Is the tail light red (stock) or did you install a clear one? It's a tough crash to figure out.
Old 03-01-2014 | 02:29 PM
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Originally Posted by comedo
It's hard to imagine how the shop could have put the rear wheel on backwards. It just won't fit that way.
I was trying to determine if the brake light went on just before the crash. Is the tail light red (stock) or did you install a clear one? It's a tough crash to figure out.
They put the FRONT wheel on backwards. And from then on I don't bring the bike, just the wheels when I get new tires. So that's why I thought maybe it had something to do with the front wheel turning sideways like that. It's not a stock taillight but it has a running red all the time and then brighter when I brake. But since neither of my brake sensors work the lights always on.
Old 03-01-2014 | 05:50 PM
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I not sure I hear right, however, I get the feeling your playing with the throttle. On/off/on, but very subtle. Also, what gear were you in if you remember ? A low gear, and throttle play in a corner will certainly bring the front end to be much lighter with a very torque-y twin. Just my two cents.

By the way, is this the same front wheel I just bought from you ?? Hmmm, now you've got me worried. Selling your already crashed stuff are you ?
Old 03-01-2014 | 06:10 PM
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Originally Posted by Jack Flash
I not sure I hear right, however, I get the feeling your playing with the throttle. On/off/on, but very subtle. Also, what gear were you in if you remember ? A low gear, and throttle play in a corner will certainly bring the front end to be much lighter with a very torque-y twin. Just my two cents.

By the way, is this the same front wheel I just bought from you ?? Hmmm, now you've got me worried. Selling your already crashed stuff are you ?
i beleive i was in 3rd gear. that was when i was nervous to let it rev high. now i do the corner in second. and it prolly had to do with a chopy throttle. u can easliy notice in the first pass i chop it badly. but the second pass its very subtle. ive done alot to work and continue to work on smooth throttle in corners. as well as smooth on the brakes. slow is smooth and smooth is fast!

and i thought you might say that, but not to worry. i had the bike completley checked after the spill. the only real damage was to the clutch lever side muffler and alternator crank case. i had the forks, frame, swingarm, and wheels all checked for alignment and damage. everything passed with flying colors. i would never sell a bunk part. however if u find something to your disliking ill gladly buy the wheel back. VTR darren bought the rest of the front end and he said that everything was in great condition when received. by the way have you got the wheel in your hands yet??
Old 03-01-2014 | 06:50 PM
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Just poking fun at you. I trust the guys on the forum since it becomes very easy to let everyone know if you're a bad seller/buyer. So no worries.

The race trailer is coming back up in about three weeks, so, I'll see it then.
Old 03-01-2014 | 07:12 PM
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As has been said, at that angle it doesn't take much to loose traction. There is a corner on deals gap with a 1"x1" pockmark in it, and if your front tire just grazes it, your going down. Its right in the center of the lane and its right as your about to transition from a right hand corner to an almost immediate left so speeds are slow, but in 04 I had a friend go down right in front of me there.

I'm willing to bet, again as has been said that there is something with the road, it looks like its banked pretty good right there and it looks like to me the angle of the bank changes what would normally be pretty subtley but at that angle nothing is subtle
Old 03-01-2014 | 08:01 PM
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I ride there (Mulholland/the Snake) too but not as often as Angeles Crest and its surrounding canyons. I don't ride AC on Sundays but I go on Mondays as there is usually like 10 people on bikes up there and NO COPS. all the attention is at Mullholland and its a Circus. It sucks to ride there as your always thinking about cops or IDIOTS at every blind corner. At least for me, I simply cannot concentrate up there. RSnickey DEFINITELY loves filming and showing accidents and that kinda sucks in my opinion. But people flock there none the less to be filmed.

That turn definitely tightens up a bit just before it straightens up. And its radiused so you have to select ONE throttle position and don't feather it while going through that corner. SLOW AND STEADY does it. There are a lot of POSSIBILITIES as to why you might have crashed though. So who knows. Its a good thing that you are OK though......
Old 03-01-2014 | 08:24 PM
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yea its really been a mess latley up there as i said earlier. cops everywhere, people going to the hospital, cars drifting, its a mad house. i usually always ride on sundays but my favorite is riding on mondays. hardly anybody on bikes or cars. theres always alot of cars coming through the canyons on there way too and from the beach on sundays but mondays its all yours. and some of the other canyons are so much more fun, more speed, bigger sweepers, beautiful views of the ocean. ahhhh glorious sunny and 75 SoCal. ive yet to make it out to angeles crest. as soon as this rediculous rain lets up i wanna get out there. that and hwy 33 in ojai.
Old 03-02-2014 | 12:18 AM
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Wired magazine did an article on this stretch recently actually

The LA Road That Tricks Bad Motorcyclists Into Crashing | Autopia | Wired.com
Old 03-02-2014 | 02:09 PM
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Jscobey, if you interested in "JUST" riding with another VTR lover give me a buzz at Tofazfou@gmail.com.

When all the snow stops and springs is here, I want to ride through Frazier Park and take it into the back of OJAI (33). Don't know if your familiar with Frazier Park but its the national forest and riding through all those tall pine trees is something beautiful.

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Last edited by Tofazfou; 03-02-2014 at 02:18 PM.
Old 03-02-2014 | 04:47 PM
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You weren't going too fast. You didn't have excessive lean angle. You weren't on the front brake. There was no abrupt change in your steering angle. You looked relaxed and calm. I don't think it's anything you did. The tire just let loose.

I didn't see any oil on the road. A couple of possibilities come to mind for me:

1. There was antifreeze spilled on that corner at some time in the recent past.
2. It was the first time that part of the tire had been on the pavement and it still had the sealant wax on it.

I just looked again. It looks like there is a streak of something on the pavement that starts right as the tire lets go.

Go up there and take a careful look at the road surface.

I had the same thing happen at 75 MPH, the last time I rode a street bike. I bounced off a rock embankment and broke my bike in half. These kinds of things haunt you, because it's so random.

Last edited by RCVTR; 03-02-2014 at 04:54 PM.
Old 03-02-2014 | 07:32 PM
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Looks like you ran out of traction. You see that often in those corners. Many have various amounts of slippery stuff soaked into them from previous wrecks. It's hard to know a particular corner's traction until you have tested it over and over. Something you can't do on the street very often.

This also happens when you are coasting through a corner using high lean angles. This process loads the front contact patch. If you had the throttle on a bit, it would shift weight back to the rear, with a much larger contact patch. If you are riding a corner so fast that you can't roll on the throttle through it, then you have entered too fast. The flip-side, if you are on the ragged edge, too much throttle leads to the dreaded high-side.
Old 03-02-2014 | 07:42 PM
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Originally Posted by RCVTR

Go up there and take a careful look at the road surface.
its funny ive watched it so many times and have always been so focused on me and my fingers and the sounds and everything but the road surface, that i failed to see that big splotch that is on the road past my wheel. it looks like something had been spilled there recently and although i dont hit that patch people riding through there all day could have deposited whatever that is elsewhere.

i did fail to mention that 5 minutes before i went down a guy on an R1 went down, then i went down, then about 10 minutes later a guy on a R6 went down although the R6 was going the other direction on the road.

its always annoyed me because i really wanted to learn something from that crash. like oh my throttle was to abrupt and i caused the rear to slide, or oh i taped the brakes and the front slid out, or something that can help me be a better rider.

maybe it was oil or some fluid on the road, maybe it was new tires, maybe the new tires and the fluid together and bam i crashed. i guess ill never know for sure seeing as it was 6 months ago. but i really liked all the input on peoples thoughts about it. now that its track season im trying to save the knee dropping for the track. alot more safe for me and the bike. alot more fun too.
Old 03-03-2014 | 05:30 AM
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Originally Posted by jscobey
its funny ive watched it so many times and have always been so focused on me and my fingers and the sounds and everything but the road surface, that i failed to see that big splotch that is on the road past my wheel. it looks like something had been spilled there recently and although i dont hit that patch people riding through there all day could have deposited whatever that is elsewhere.

i did fail to mention that 5 minutes before i went down a guy on an R1 went down, then i went down, then about 10 minutes later a guy on a R6 went down although the R6 was going the other direction on the road.

its always annoyed me because i really wanted to learn something from that crash. like oh my throttle was to abrupt and i caused the rear to slide, or oh i taped the brakes and the front slid out, or something that can help me be a better rider.

maybe it was oil or some fluid on the road, maybe it was new tires, maybe the new tires and the fluid together and bam i crashed. i guess ill never know for sure seeing as it was 6 months ago. but i really liked all the input on peoples thoughts about it. now that its track season im trying to save the knee dropping for the track. alot more safe for me and the bike. alot more fun too.
I think the main takeaway from this crash is that the street scene is full of constantly changing variables, be it road surface, oncoming drivers/riders, animals, debris, etc.. and all those things can change from hour to hour on the same section of road. As others have said it doesn't look like you did anything obviously wrong and it was a '**** happens' type of thing. These types of things do mess with your head, I've been there.
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