Author Topic: Non cush drive disc brake rear  (Read 1422 times)

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Offline gschuld

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Non cush drive disc brake rear
« on: April 19, 2013, 05:00:55 PM »
So I realize that the factory cush drive in the rear hub helps "soften the blow" between the engine/chain and rear hub.  Many vintage drag bikes and occasionally choppers replace the cush drive with a solid hub and disc brake setup.  I presume that using a non cush drive rear on the street would cause more stress on the motor/trans/sprockets/chain, enough to cause serious concern?   How about for a more powerful ported 1000cc motor?    The purpose would be for short local rides and occasional drag strip use.   

Thanks in advance,

George
« Last Edit: April 19, 2013, 05:09:50 PM by gschuld »

Offline City Boy

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Re: Non cush drive disc brake rear
« Reply #1 on: April 19, 2013, 08:05:49 PM »
Hi.I have Morris alum. mags on my 1000 RC engine.After the original Morris cush drive failed by shearing all the sprocket bolts,I deleted the cush drive and increased the diameter of the sprocket bolts.All was fine afterwards.  Rock On
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Offline Old Scrambler

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Re: Non cush drive disc brake rear
« Reply #2 on: April 19, 2013, 08:42:42 PM »
I ran the Shelby wheels on the street and touring for several years with no cush.......never noticed anything.
Dennis in Wisconsin
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Offline BLUE71TURBO

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Re: Non cush drive disc brake rear
« Reply #3 on: April 20, 2013, 08:34:44 PM »
 Same here Scrambler,  I am running Shelby Dowd wheels with a Hurst Airheart rear disc brake setup. I have never had any problems, even at 22lbs of boost.   ;)  ;D


         


   
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Offline HOSA

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Re: Non cush drive disc brake rear
« Reply #4 on: April 21, 2013, 12:29:52 PM »
Cush drive was for smoothness and quietness on street machines. The only thing needed without is more attention to attaching hardware. Tend to loosen with severe use.
Doug