This can be deleted. Thanks

[JAF/CO]

???

 

[Nashman]

I was curious too. Found this

https://thecabe.com/forum/threads/sproc-o-matic-rocket.34049/

https://bikeville.com/2011/11/03/rocket-sprocket/

https://thecabe.com/forum/threads/rocket-sprocket-help.5291/

Thanks Morton!!

 

[Nashman]

????

I'm sure that bushing/washer/sleeve falls out of the box pretty dang easy. Probably not even bagged in those days. Cool idea, but typically a re-cycled elliptical chain ring idea that's been around for decades. Just like a "hygenic" mono shock on rear seat stays ( I had one on a VERY early frame about 30 years ago/sold it) that was around in the teens, and was considered "new" (as both these ideas were touted as) on mountain bikes.

 

[bricycle]

Nice!

 

[JAF/CO]

If you don’t have this bushing I won’t work has to move on the crank arm


James Frazier (209) 481-9464
[email protected]

 

[bricycle]

View attachment 766639View attachment 766640View attachment 766641

If you don’t have this bushing I won’t work has to move on the crank arm


James Frazier (209) 481-9464
[email protected]

Hey James, what are the dimensions on that washer? maybe some of us have those in our washer bin and have no idea what it is...

 

[JAF/CO]

Pm sent


James Frazier (209) 481-9464
[email protected]

 

[ozzmonaut]

My guess is that you actually only need a bushing the thickness of the chainring, with an O.D. the same as the crank hole, and an I.D. the size of the crank. It would be sandwiched between the crank arm flange and the crank nut anyways, and the bushing would allow the chainring to spin. I remember seeing that washer out in the shop and not knowing what it went to. I think I might know where it is. I'm going to postpone sale until I have the functionality worked out. Mods can pull the ad if neccessary, or I can delete it, if that works better. I honestly just don't want to sell something that isn't working. Even if this one never gets used, it needs to be able to be.

 

[JAF/CO]

Here you go enjoy


James Frazier (209) 481-9464
[email protected]

 

[JAF/CO]

And also this is for a regular chain 1/2x 1/8 the teeth are to small for a skip chain
That is all I don’t have no more


James Frazier (209) 481-9464
[email protected]