VIDEO -- of my Aprilia hydraulic clutch mod

[osteoderm]

Just saw this thread after a long absence here... Great work! I'm a little annoyed that almost all the photos from my build thread have disappeared, but now that a few other people have started making and documenting these hydraulic clutch conversions, I think there's enough information out there for anyone to do one.

 

[gggGary]

Hey @osteoderm You've been missed, still remember your awesome build!

 

[DogBunny]

https://www.ebay.com/itm/185922541773
Spotted this on eBay for $65 plus $22 shipping. The speed holes and shaved rear end make me think that maybe this was used by a flat-tracker?

 

[ReycleBill]

View attachment 244353View attachment 244354
https://www.ebay.com/itm/185922541773
Spotted this on eBay for $65 plus $22 shipping. The speed holes and shaved rear end make me think that maybe this was used by a flat-tracker?

And I just bought it. Thanks for the tip.

 

[DogBunny]

And I just bought it. Thanks for the tip.

I wasn't actually endorsing it. Hope it works for you.
I think you're going to have to make some kind of a collar for it. Look at picture 5 in the listing, showing the piston bore. It needs to be narrowed down to about the diameter of the push rod. See the pics below.

 

[DogBunny]

Also -- there's supposed to be a spring in there. And the collar that I mentioned above that you need rides on a seal, just like the piston on a caliper does -- in fact, I think what you need is a piston, not a collar.
I think you'd be best off trying to cancel the sale, or finding the same slave cylinder that's in the listing, but is complete with the piston.

 

[350GUY]

View attachment 222854
https://www.xs650shop.de/en/handlebar-instruments/1372/clutch-kit-hydraulic-sw-1650mm?c=102
I learned today that the German XS650 supply house sells a hydraulic clutch kit. At today's exchange rate, cost is about $340.

View attachment 222855
This is a HIDDEN slave style, like mrriggs'.
I looked at the instructions and it is a little involved. The one thing I don't understand is Der Kupplungsausrücker ist imLinken Seitendecker eingebaut. Actually, just being a wise guy there -- the instructions are in German, so I don't understand any of it, but I did like the sound of that particular phrase.

I got word from someone who installed it that it releases fast, so you have to feather the clutch. This tells me that the bore of the master cylinder is too big.

I need one of these, if anyone is willing to part with….