What swing arm bushings are these ??? Tri ~ Z perhaps ???

[jeswinehart]

I got these from the late Sandpuppy101 estate 10 years ago and defintly recall they was in package from YamaHondaman Ronnie Hopkins to Sandpuppy.
Now Roger to the best of my knowledge never had a Yamaha Tri-Z. Ronnie on the other hand specialized in Yamaha Tri~ Z .
I would like to send to BKM to use as proto types to make more but we need to 100% sure what they are for first.
All measurements are in MM

If there is a different measurement needed please let me know and it will happen. Thanks guys.

john

[onformula1]

Well, the 15mm ID takes the Honda's out of the equation, I do not have a Tri-Z to measure but I am pretty sure the Tecate's are 15mm.

It may just be the picture but they look like Nylon, not Delrin.

[bkm]

250r is 15mm

John if you could measure the width of the flange. They look very close to 250r bushings.

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[onformula1]

250r is 15mm

John if you could measure the width of the flange. They look very close to 250r bushings.

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Ouch, bushing master, I was thinking all were 14mm.

[bkm]

I think the 3rd Gen 250r is the only one. It's been a while since I made a set of 83-84 bushings, but I believe they are 14mm.

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[jeswinehart]

Well sounds like we are getting to know what they are not :)

[bkm]

I believe they are 250r bushings. My dimensions are almost identical and are just a few thousandths different.

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[El Camexican]

I just checked my 85 Tri-Z bushings. Looks like the axle O.D. is 16mm. I can check other numbers if you want, but the thick shoulder on the bushings in the photo would indicate they aren't meant for a Tri-Z.

[jeswinehart]

Good enough for me guys. Well sorta,,, what year R ? I will tag them once I know.

[bkm]

85-86

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