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  #1  
Old 10-13-2024, 11:06 AM
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Veloo Veloo is offline
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Dimensions of Rockshox Quadra 21R elastomers

Anyone happen to know the height and diameter of the elastomers in the old Rockshox Quadra 21R forks?
I think I will give the 3D print a try to turn the forks rigid.

Haven't opened mine up yet (ever) but I suspect they have disintegrated into dust/mush.

I hope the plastic hasn't turned completely brittle and will snap upon disassembly. That's happened to me when I worked on a friend's old 90s bike. The knob on this fork (other make and model) snapped right off with a light turn.
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  #2  
Old 10-13-2024, 12:15 PM
mtbmoose mtbmoose is offline
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How about a new set of elastomers?

https://www.suspensionforkparts.net/...1995-1996.html

Or perhaps replacement springs instead:

https://www.ebay.com/itm/234577214889
Or
https://specialtyretroproducts.com/p...dra-speed-efc/
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Old 10-13-2024, 01:31 PM
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witcombusa witcombusa is offline
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The SFP replacement elastomers will actually last longer than the originals too.
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  #4  
Old 10-26-2024, 04:27 PM
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The intact one is just under 20mm OD and just under 28mm height.
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