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AlanC

rear shock

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Hi folks,

Can someone tell me this.. Do shocks wear out on a  trials bike? Or  since the one I have would need to be drilled, are they like a standard road bike and just fade a bit. Or is the damping that important on them. Its an old Gasgas

Thanks

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You need to take the shock off the bike, then take the spring off, push down on shock to see if it has good/ any rebound ? If there is little or no rebound it is definitely time for a rebuild, it depends what sort of & how much riding you do ?

I usually rebuild my shocks after about 1k klms of trail bike riding, with a trials bike i suppose you could get a good year out of it, if it has never been touch i would definitely open it up & have an inspection of all parts & reoil & regas it !

Edited by eagle8

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Yes they ware out in a few ways.  Some of them are, that the oil brakes down, the seals ware out, if you loose to much nitrogen it will almost always cause a shock to leak, etc. 

My 2 cents, for what its worth, is that If the shock is not serviceable but you like the way the bike rides, and your a tight wad, use it tell you feel it doesn't ride nice and replace it, or ride it tell it would normally be time to rebuild and then replace it with a serviceable shock. 

When mine needed service I decided to change it out for a custom setup that is more plush than my original and really like the way the bike rides now but even just a nice lower cost serviceable shock would work great in my opinion. 

Good luck with what ever you end up doing. 

Edited by jonnyc21

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Thanks for the replies folks. Testing the shock with no spring on it would be good idea. But I wouldn't know how much damping it should have in the first place. It's old, and I'm just pottering about on it for fun at the moment. I've did it up a bit, so I'll try it and if it has no grip and can't get up the hills, I'll know its the shock as its the only thing I haven't done. 

 

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Bought from parker store downtown.

Others seal and hydraulic gasket stories can have these seals too.

 

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I do what eagle8 said. I remove the spring, and put the comp and rebound adjusters in mid position. It should take a bit of force to compress the damper (your working against the gas pressure and oil damping). When you release the damper it should return in a  firm controlled manner. You can play with the adjusters and notice a change in damping rate

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