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T500 steering damper + GT500 triple tree

Posted: Wed Jun 27, 2018 7:42 am
by jabcb
Working on the T500 cafe build. Am using a GT500 triple tree + GS550 fork tube assemblies. Parts are back from the powder coater & I noticed an interesting possibility.

Parts diagram for the T500 steering damper:
ImageT500-Damper_StockDiagram by jabcb, on Flickr

Turns out the spacing between the T500 damper bolt (part #11) & the triple tree stem is about the same as the spacing between a GT500 fork lock bolt & the triple tree stem.
Bottom of the T500 triple tree:
ImageT500-Damper-Stock1 by jabcb, on Flickr
ImageT500-Damper-Stock2 by jabcb, on Flickr

Bottom of the GT500 triple tree:
ImageT500-Damper-GT500 by jabcb, on Flickr

Bottom of the GT500 triple tree with an M6 socket head bolt + spacer + nut:
ImageT500-Damper-0844 by jabcb, on Flickr

Bottom of the GT500 triple tree with the T500 upper damper plate (part #6):
ImageT500-Damper-0845 by jabcb, on Flickr

Bottom of the GT500 triple tree with the T500 damper.
ImageT500-Damper-0846 by jabcb, on Flickr

The upper damper plate (part #6) & damper hub (part #8) will need some work. Some of the plate will need cut off so that the forks can move from lock to lock. Some of the hub OD will need filed down so that it will fit inside of the stem.

This leaves the question: would a high strength M6 socket head bolt be strong enough? (The treads on the T500 damper bolt (part #11) are bigger than M6.)

Re: T500 steering damper + GT500 triple tree

Posted: Thu Jun 28, 2018 4:47 am
by johnakay
what is the purpose of those star washer?

Re: T500 steering damper + GT500 triple tree

Posted: Thu Jun 28, 2018 7:42 am
by jabcb
The star washer is a spring. Without it the damper adjustment would be too much of an on-and-off switch.

Re: T500 steering damper + GT500 triple tree

Posted: Sun Jul 01, 2018 6:03 am
by johnakay
OK thanks/learn something new every day.never to old to learn eh.