Sportster drum brake on a disk model fork

[blackchop]

Hey Blackchop, do you have pictures of those adaptations you did?
What's the better place to fix the bracket, fender tabs or caliper mount? I feel the caliper mount would be stronger to hold the wheel when I'll brake at full speed...
Any recommandation on how to fab the best bracket?
Any recommandation on a specific japanese drum wheel since you tested several ones? That's exactly the kind of advice I'm looking for.

I just got yesterday a sportster drum wheel. First of all the axles won't match, gonna have to mill the later one to fit. Since I don't have a lathe, I'm going to look on this first issue...

ill have to dig through my pics to find some pics of such.
and yes the disc brake mount tab is the best place to run a brake stay. as far as brake stay goes- depends on the kind of drum you use- some are as easy as a simple flat piece - which is easy to make out of a flat piece of metal.
the 350 honda drums work fine as well as the xs400 drums, along with several other type of drum brake frontends from jap bikes. id go dual leading drum brake for better stopping power.
as far as axle differences- yuip its always , it seems, that that needs to be done to mate it all; together correctly.

[ElekVins]

I Started today with the axle.
The disk wheel has a 19mm axle and the drum wheel a 17mm axle.
The 19mm axle is also longer.
So I milled the disk axle to fit my wheel on the 35 mm forks.

Original:


Modified:


Does anyone here have the exploded view of the Sportster drum front wheel?
I'd like to see how are all the spacer inside originally...

[WOMPY]

Here's something I did for Craze from Eternal Combustion. He wanted to graft a Honda CL360 drum wheel , I think, to a 35mm sporty FE. I turned the axle and made all the spacers and sleeves and linkage to make it happen.

[ginovaselino]

I just got a front drum off a 1972 ironhead that is ment to be laced to a 19" wheel. I wanna lace it to a 21" rim.
Can I use any 40 hole 21" rim?
what size spokes do i need?

I have never laced a wheel and I figure i would try and get as much info as i can.

thanks

[bobscogin]

Can I use any 40 hole 21" rim?
what size spokes do i need?
thanks

Rims are usually dimpled / drilled for spoke angles that are specific to a particular hub. That said, most rims can be used, but if the holes aren't angled correctly the results can be that the spokes will have a bow or slight bend in them where the nipple comes through the rim. If you've never laced a wheel before, I'd recommend getting the correct rim for the hub you want to use so you don't have to deal with that problem.

Bob

[ginovaselino]

harley never made a 21" rim so how do I find out what 40 spoke 21" rim and spokes will work with this hub?

[Guest]

?????no 21 by h/d,,,ahhh,,,,wide glide,,again,,,, wide glide,,,just saying,, not a drum ,,but is 21 by h/d,,,give buchanan wheels, a call they may, have spoke set ups to convert a 19 inch hub to a 21 inch rim,,they would have it if anyone does,,,

[Saltytonk]

What??? Hell a 1200c has a 21. Lots of 21 s

[Guest]

another h-d with 21might be the mx 250from the 1970s,,this has a drum brake,,,looks as though its a 21,,, google" h-d mx 250" and see what it looks like to you ,,might be what you need

[ginovaselino]

Ya i thought you guys were saying that it had to be a ironhead 21".. sorry my bad. So any narrowglide harley 21" rim will work thats 40 spoke?"

[ginovaselino]

I have a harley rime laced to a disk hub. can i use any hd 21" 40 hole rim??

[dhallilama]

if it's from JJ that you're thinkin' 'bout, it's probably mine...

39mm forks, shaved...
brake stay welded to tube...
one-off super narrow trees...
lowers formed around the drums...
inner part of the lower machined after welding...
LOTS of f'ing work...
LOTS.

even more than it looks. huge pain in the ass.
and no, it doesn't stop for shit.
i dig it, though.

my daily, '67 XLH skinny bike...

[ginovaselino]

everything about that bike is sick. that front end is crazy

[LAMF]

I was watching your build over on JJ but havent checked it in a while.. that front end is too right, insane work

[ElekVins]

[QUOTE=dhallilama;218217]if it's from JJ that you're thinkin' 'bout, it's probably mine...

39mm forks, shaved...
brake stay welded to tube...
one-off super narrow trees...
lowers formed around the drums...
inner part of the lower machined after welding...
LOTS of f'ing work...
LOTS.

even more than it looks. huge pain in the ass.
and no, it doesn't stop for shit.
i dig it, though.

Thank you for sharing, that's what I was looking for !!

What a fucking work !! It looks great

then you must weld aluminium if i'm not wrong... (or is it some kind of alloy foundery?) Don't think I can do such thing, I don't have the skills...
I'm looking for a more simple solution, but yours is great !!
Is it strong enough to hold the wheel?
Sorry to hear that it doesn't stop shit, I was hoping to improve my brakes at the same time as the look...

So far on my 35mm I reversed left/right fork in order to have the bracket in the same side as the cable-pivot, didn't post pictures yet 'cause I'm damn slow and still hitching my head on centering the wheel and fab' the bracket...