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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #1  
Old 20th June 2011
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Default Using car shocks on a bike?

I am wanting to replace my shocks with some air suspension shocks but don't want to pay the 200-300 for a pair of shocks when I can theoretically go to the autoparts store and get them for a quarter of the price. Any ideas?
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Old 20th June 2011
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theorectically yeah, but you got to remember the rate for a car chock is 3000lbs or better a bike only weights about 500lbs it would stiff as a hardtail even with hardly any air in them
I would suggest ebay or a swap meet for some to save you some money or shell out the money for new
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Old 20th June 2011
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Seems to me guys used to use boat trailer shocks to lower the rear end you could check and see if they may have anything your looking for.It maybe cheaper but you'd have to know what would work.
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Old 20th June 2011
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look on ebay there are tons of threads about using road king/ bagger air shocks. i got mine including shipping for under 40 bucks
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Old 20th June 2011
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Where are you gunna find a car shock that short?
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Old 21st June 2011
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Some do run car tires. So car shocks?
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Old 21st June 2011
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http://www.xlforum.net/vbportal/foru....php?t=1159261
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Old 21st June 2011
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If you use car/truck shocks..whats gonna give you spring rate?? Whats gonna hold up the frame/fender off the tire?? You need coil overs, and they are no cheaper by any means to shocks for a bike. Air shocks for autos will work fine, when full of air...but what happens when they blow out?? You end up with a wrecked bike! Its part of a suspension system, not as the system!
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Old 21st June 2011
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Is this a serious question or were you just wondering "why not?" I agree with others, the best low cost option is Ebay StreetGlide air shocks.
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Old 21st June 2011
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Quote:
Originally Posted by einheit 13 View Post
If you use car/truck shocks..whats gonna give you spring rate?? Whats gonna hold up the frame/fender off the tire?? You need coil overs, and they are no cheaper by any means to shocks for a bike.
Bingo -

Most car "shocks" (not coil over struts) are JUST shock absorbers. They are designed for installation on suspensions where a separate (control arm or live axle mounted) coil or leaf springs provide the support for the suspension.

But motorcycle "shocks" are not normally JUST shocks - they are the shocks AND the springs combined. Meaning they don't just supply the compression and rebound dampening but they support the suspension.
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