Hydraulic drum conversion?

I ran across this picture with no explanation. Looks like a clutch conversion slave cylinder? Good idea? Bad idea?

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Re: Hydraulic drum conversion?

They sell the hydraulic clutch cables, would be easy enough to attach to a drum.

I've got one on order now for a diff project that ended up not using it so..., maybe this is in my future.(edited)

Re: Hydraulic drum conversion?

Seems like a good idea. Wonder how much of a difference it would make or if it's just easier on your hands that a cable

Re: Hydraulic drum conversion?

> Buttcheeks BUZZARD Wrote:

> -------------------------------------------------------

> Seems like a good idea. Wonder how much of a difference it would make

> or if it's just easier on your hands that a cable

That’s my line of thinking, it’d help reduce friction and stretch in the system.

Re: Hydraulic drum conversion?

This would make for some super fun rear tire squeelies

Re: Hydraulic drum conversion?

hydraulics put more force on the brakes and don't stretch over time an always have a nice squeeze feeling two them. It won't be easier on your hands (it might actually be worse) but it will feel better and will be a lot more effective.

Only issue is its not a true hydraulic brake system. The cable might stretch and just give a feeling/braking power of a cable brake system. You could also snap the cable line if the braking power was to much or just stretch it out so quick.

Nothing like new cables and new brakes! That squeeze feeling , reminds me of a stress ball!

Re: Hydraulic drum conversion?

There is no cable involved. A master cylinder, a hydraulic line, and a slave with a steel rod.

Re: Hydraulic drum conversion?

Interesting!

It's still not a true hydraulic system & might not feel 100% the same. I can image some give in the system with all the linkage.

It's cool and all but not worth it in my own opinion, just convert it to disc.

Re: Hydraulic drum conversion?

Like you could even know.

Oh let's listen to country boi he knows what to do and what not to.

Feh

I got this shit today and I'm fucking doing it cocko taco. Im gonna stop on a dime maybe even a haypenny but it'll stop at some point and it's blue.

IMG_6380.JPG

Re: Hydraulic drum conversion?

Are we talking money or small weight of weed? Either way I’m looking forward to seeing your results before I drop the $30 on a set up.

Re: Hydraulic drum conversion?

I wasn't looking for it, but now that I know it exists I have to have it. My rear brake compared to the front disc has always just felt spongy and with the brake light switch integrated in the cable I couldn't easily go for scooty cables. Interested to see your results.

Re: Hydraulic drum conversion?

I've been thinking on this since jbot brought it up in the launch lever thread. Rad idea, iam following this one closely

Re: Hydraulic drum conversion?

I spent a lil extra to get the blue one because it matched the mirror on my orange moby. But the moby has a disc front, and my hose isn't long enough I think to do hydro back, I've got a few drum front bikes tho, it'll be hard to decide which one to do

Re: Hydraulic drum conversion?

Maybe just quickly rig up a drum front bike to see how you like the feel and performance, before you order a custom hose or have one made?

Re: Hydraulic drum conversion?

Yeah gonna try a front first.

I will say tho that after having hydraulic drum brakes on my Chevy nova, it might not be great.

But there's no way to know until it's tried

Best mods to drum brakes are doing sipe cuts in the shoes. Idk why it helps so much but it really does.

Re: Hydraulic drum conversion?

I'm sure that the grab and actual braking power may not be affected by much but if even the amount of lever travel can be reduced regardless of pressure needed then I would be up for the work involved.

Re: Hydraulic drum conversion?

JBOT Admin

Take some pictures when your done.

Re: Hydraulic drum conversion?

Jbot I think this is awsome and really cool and interesting. I'm not saying don't do, I'm it just saying that like why would u? After all the custom work need you could probably get disc on there and people will actually notice it.

To the average person this didn't seem that great. Maybe a hydraulic launch lever would be cool!

I love seeing your shit dude, it makes me laugh and also it's very interesting to see you work on different stuff then just the normal bolt on swag.

if you thought that I didn't find this interesting you miss understood me. Its okay you think I'm that lil punk and I'm

Re: Hydraulic drum conversion?

Not sure how long the hose is , but , maybe mount the slave toward the front . Then an extension ( cable or rod ) attached to the rod to the rear brake .

Just mussing . ;)

Re: Hydraulic drum conversion?

Doing a thing to know the truth in something after a question is raised is never wasted time. It is more valuable than gold.

I spent hours and hours today battling a stock derbi head that just didn't want to get welded. Still not done. It'll take hours more. Never tried to weld so deep into a combustion chamber before, and the cast is so porous and filled with oil, and I'm a shitty welder. But I'll get it. Eventually. And I'll be better for doing it. So why not wanna be better? That's my hot fucking take

Re: Hydraulic drum conversion?

The fabrication to mount a disc brake and the literally bolt on application of this are in no way in the same ballpark of fabrication skill or time needed. This could be done half drunk in less than an afternoon.

Re: Hydraulic drum conversion?

> DPC Ryan Wrote:

> -------------------------------------------------------

> The fabrication to mount a disc brake and the literally bolt on

> application of this are in no way in the same ballpark of fabrication

> skill or time needed. This could be done half drunk in less than an

> afternoon.

I don't drink but I'm pretty sure with some marijuana, a stick welder and an old pit bike I could make it happen.

I would be a little more confused on this set up because the mounting of the slave cylinder and the metal rod looks like it was special machine parts that I couldn't make ( I could make something but it would not look pretty)

Re: Hydraulic drum conversion?

how much marijuana? what kind of sticks do you weld? how deep is the pit?

jbot will learn the answers and tell us.

problem is there is nothing majickal about hydraulics, the advantage to hydraulic brakes is that they have a better mechanical advantage because disc brakes don't have as much slop as drum brakes do.

that image looks like it has a custom twizter arm bolted on there to give it a longer reach.

the key to drum brakes is having them clean, true, and lubed up perfecto and they work great. good set of maxi drums has no prob locking up a tire.

Re: Hydraulic drum conversion?

> Rocco Taco Wrote:

> -------------------------------------------------------

> > DPC Ryan Wrote:

>

> > -------------------------------------------------------

>

> > The fabrication to mount a disc brake and the literally bolt on

>

> > application of this are in no way in the same ballpark of fabrication

>

> > skill or time needed. This could be done half drunk in less than an

>

> > afternoon.

>

> I don't drink but I'm pretty sure with some marijuana, a stick welder

> and an old pit bike I could make it happen.

>

> I would be a little more confused on this set up because the mounting of

> the slave cylinder and the metal rod looks like it was special machine

> parts that I couldn't make ( I could make something but it would not

> look pretty)

To me it looks like the slave mounts to the bracket that would have held the end of your cable sleeve.

Re: Hydraulic drum conversion?

Dirty30 Dillon /

> Thomas TPRF Wrote:

> -------------------------------------------------------

> To me it looks like the slave mounts to the bracket that would have held

> the end of your cable sleeve.

That's what I see as well

Re: Hydraulic drum conversion?

Yeah, seems pretty straightforward.

Re: Hydraulic drum conversion?

A lot of those parts looked like they were machined.

Those end caps are fancy. The hardware stores not going to have anything like that.

Its would take me a good solid day to make those parts with a drill press & file. Then I have to put all my trust in it.

Re: Hydraulic drum conversion?

> Rocco Taco Wrote:

> -------------------------------------------------------

> A lot of those parts looked like they were machined.

>

> Those end caps are fancy. The hardware stores not going to have anything

> like that.

>

> Its would take me a good solid day to make those parts with a drill

> press & file. Then I have to put all my trust in it.

I think this may be the bit needed to minimize weirdness.

https://www.mopeddivision.com/universal-moped-brake-cable-end-m6-threading-chrome-w-tool/

Re: Hydraulic drum conversion?

That's a pretty clever invention there

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