PMW Shocker

General Discussion about electric scooters and motorcycles and other things with no pedals.

Re: PMW Shocker

Postby huskydave » Mon Apr 27, 2009 2:46 pm

+1

With your experience they should get the bugs worked out. I hope it works well because of the advantages in this type of setup. It would be nice to get a seat of your pants review from a gearhead too.
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Re: PMW Shocker

Postby Sheriff Jon » Thu Apr 30, 2009 6:39 pm

Here is a new picture just posted on the GoPed site.
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Re: PMW Shocker

Postby fechter » Thu Apr 30, 2009 6:46 pm

Cool.

The motor sprocket looks like about as small as you can get for that chain size. Must give some good torque though...
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Re: PMW Shocker

Postby dragonfire » Fri May 01, 2009 6:04 am

so, are there any news regarding the "sneak peak" testdrive of "liveforphysics" yet ?

this setups looks comfortable enough even if still recovering from some injuries :P
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Re: PMW Shocker

Postby Malcolm » Fri May 01, 2009 6:56 am

I really like the look of this. Would love to get a closer look at the front hub and steering arrangement. Can't help thinking that a pair of those front swingarms could be used to build a very slippery tilting three wheeler – just need a linkage to transfer tilt from one side to the other.

The motor sprocket seems a long way from the pivot point for the rear swingarm, could there be problems with chain tension?
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Re: PMW Shocker

Postby Miles » Fri May 01, 2009 7:08 am

Hi Malcolm,

The motor is actually mounted on the swingarm.
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Re: PMW Shocker

Postby Malcolm » Fri May 01, 2009 8:20 am

Miles wrote:The motor is actually mounted on the swingarm.

Doh, should've spotted that. Glad someone's awake round here :)
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Re: PMW Shocker

Postby Miles » Fri May 01, 2009 8:31 am

Easier to see with a change of levels:
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Re: PMW Shocker

Postby michaelplogue » Fri May 29, 2009 8:05 am

New video of the Shocker in action - well, not a lot of action, just a ride in the parking lot.....

http://nws.carbonmade.com

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Re: PMW Shocker

Postby Ben » Fri May 29, 2009 6:20 pm

The question is, can you do stoppies with CIDLI?
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Re: PMW Shocker

Postby liveforphysics » Sat May 30, 2009 12:53 am

Around 51 seconds something interesting happens to the front-end under mild brakeing.


They need somebody on that bike that knows how to turn a motocycle. I scrub off the outside edges of the tire on my gsxr.

I'm healed up, and ready to push anything 10/10ths. I need to schedule a time to fly down and see how she performs under a proper flogging :)

It would be great to have a set of dirt tires for her, along with a set of street rubber, so I can give a review of the performance under both conditions.

From looking at the tires, I'm thinking turn-in would be much sharper with a more narrow rear tire, but perhaps they are running that width to try to add stability.

I need to quit guessing and just fly down and find out :)

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Re: PMW Shocker

Postby liveforphysics » Sat May 30, 2009 12:56 am

Ben wrote:The question is, can you do stoppies with CIDLI?


I see no reason why it wouldn't stoppie like any other supermoto. My concern would be how well the dampening would work to prevent it pogo'ing back and taking weight off the front wheel during the stoppie, which results in a front tire skid, and generally a wreck. If the bike is light enough, making the transistions as smooth as possible should help to avoid that though. I will find out :)
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Re: PMW Shocker

Postby Malcolm » Sat May 30, 2009 4:35 am

liveforphysics wrote:Around 51 seconds something interesting happens to the front-end under mild brakeing

I noticed that too. I could well be wrong here, but it looks to me as if there would be a transition point in suspension adjustment where the bike dives or rises on braking, and that this transition point will depend on the spring rate, rider weight and dynamic state. Isn't that why swing arms are only used on the rear end of cars? (With the exception of the Citroen 2CV, which has interlinked leading and trailing arms).
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Re: PMW Shocker

Postby Ben » Sat May 30, 2009 6:07 am

To me it just seems like the pivot point should be below the front axle, so instead of the front wheel having to move up and towards an obstacle, it moves up and away from it.

I'm not sure how well it would tackle things like curbs and small children, but that's why we have Luke.
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Re: PMW Shocker

Postby dragonfire » Tue Jun 02, 2009 9:56 am

The CIDLi can do stoppies, at least on the gtr scooter application.

As for flying to the factory, i am unsure if the prototype resides there, but the Minden/ Tahoe airfield is within 5 minute walking distance to the factory :)
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