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Old 09-09-2012, 08:29 AM   #1
redtalon3204
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Extended Swingarms and wheelies

Having a discussion with a friend and it came up about wheeling a bike with a BOLT ON extended swing arm. Is it safe? Something about 400+ lbs of the bike being forced on those bolts, not to mention adding the force of wind and speed, doesn't seem like it would be very safe. I've seen many extended swing arms snap from people just riding regular. Input?
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Old 09-09-2012, 08:32 AM   #2
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i wouldnt do it, but then again i would never put one on.
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Old 09-09-2012, 08:36 AM   #3
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I would be more concerned with the additional load placed on the forks when the wheelie is dropped. Think of the bike as a lever rotating on the contact patch of the rear tire and ending at the front tire. Extended swinger = longer lever = higher velocity at the end of the lever.
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Old 09-09-2012, 08:53 AM   #4
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that argument never even occurred to me. good point. thanks!
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Old 09-09-2012, 09:09 AM   #5
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I used to do them all the time on my '05 zx10. Other than feeling like you're higher than giraffe p**sy it's a very exhilarating experience. Would I recommend doing it? Not really. Looking back on it whenever I pulled my bike apart all those bolts were bent. Kinda one of those ignorant and happy than knowledgable and fearful.
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Old 09-09-2012, 08:19 PM   #6
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Old 09-09-2012, 08:42 PM   #7
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Riding in general on bolt-on extensions is sketchy IMO.
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Old 09-09-2012, 09:06 PM   #8
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Those extensions never looked safe to me either.
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Old 09-09-2012, 10:22 PM   #9
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Quote:
Originally Posted by dudewhrsmybike View Post
Riding in general on bolt-on extensions is sketchy IMO.
Actually passed a guy on RR with an extended swingarm this morning. Looked like a CBR600RR. It was hard to tell when i passed him as I was chasing down the RC51 that he was riding with. I bet that really screws up the handling on the bike. Really not sure why you would even want to do that to a sport bike made to handle. On top of that it looks rediculous and squidlicious.

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Old 09-10-2012, 12:13 PM   #10
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The main reason is to keep from riding wheelies. It's for drag racing because when you're sitting on the line with the motor screaming at about 9 grand and dump that clutch the last thing you want to do is worry about looping it.
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Old 09-11-2012, 06:04 AM   #11
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I say knock yourself out
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Old 09-11-2012, 07:51 AM   #12
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my gsxr1000 had a 6'' extension (it was turbo) it lifted on me it felt totally different than riding a wheelie on a normal bike.. mine was not bolt ons though..
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Old 09-11-2012, 09:01 AM   #13
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My buddy just bought an 02 750 that had those extenders on it. We just removed them about a week ago.. Needless to say, it was missing a bolt on one side and the other side was barely hand tight. No lock tite or anything. He really dodged a bullet to be honest. He was telling me how he had it up to 140 the weekend before.. Scary ..
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Old 09-11-2012, 10:18 AM   #14
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Quality bolt on extensions are an interference fit in the swing arm pockets, with a block behind that fits into the stock adjuster slot. The bolts simply clamp the two blocks together and see little load.

Cheap ones fit loose in the swingarm and sometimes have nothing but thick washers on back. Definately an accident looking to happen.

I would trust a quality set no problem and have a set on the drag bike.
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Old 09-11-2012, 10:39 AM   #15
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Quote:
Originally Posted by texlurch View Post
Quality bolt on extensions are an interference fit in the swing arm pockets, with a block behind that fits into the stock adjuster slot. The bolts simply clamp the two blocks together and see little load.

Cheap ones fit loose in the swingarm and sometimes have nothing but thick washers on back. Definately an accident looking to happen.

I would trust a quality set no problem and have a set on the drag bike.
I concur
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