I just bought a pair of EBC shoes for a single leading shoe
drum brake. Looking at the two shoes, they're identical
except for the position of the pad material on the shoe.

One one shoe, the pad material is placed closer to the pivot
point and on the other, the pad material is closer to the end
of the shoe which is driven by the brake cam.

Which shoe should be the primary (leading) shoe ? Is it the
shoe with the brake pad placed closer to the pivot point or the
one where the pad material is closer to the cam ?

My guess is that the leading shoe should be the one with
the pad placed closest to the pivot point.

TIA

Rob Kleinschmidt <(E-Mail Removed)> wrote:

> I just bought a pair of EBC shoes for a single leading shoe
> drum brake. Looking at the two shoes, they're identical
> except for the position of the pad material on the shoe.
>
> One one shoe, the pad material is placed closer to the pivot
> point and on the other, the pad material is closer to the end
> of the shoe which is driven by the brake cam.
>
> Which shoe should be the primary (leading) shoe ? Is it the
> shoe with the brake pad placed closer to the pivot point or the
> one where the pad material is closer to the cam ?
>
> My guess is that the leading shoe should be the one with
> the pad placed closest to the pivot point.
>

In 35 years of faffing with bikes, I've never worried. I've just snapped
them into place and ridden. I really don't think it matters.

Krusty will be along in a moment with more disinformation :-)



--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ERx2 GN250. Only seven bikes now.
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

On Dec 11, 9:15*am, totallydeadmail...@yahoo.co.uk (The Older
Gentleman) wrote:
> Rob Kleinschmidt <Rkleinsch1216...@aol.com> wrote:
> > I just bought a pair of EBC shoes for a single leading shoe
> > drum brake. Looking at the two shoes, they're identical
> > except for the position of the pad material on the shoe.
>
> > One one shoe, the pad material is placed closer to the pivot
> > point and on the other, the pad material is closer to the end
> > of the shoe which is driven by the brake cam.
>
> > Which shoe should be the primary (leading) shoe ? Is it the
> > shoe with the brake pad placed closer to the pivot point or the
> > one where the pad material is closer to the cam ?
>
> > My guess is that the leading shoe should be the one with
> > the pad placed closest to the pivot point.
>
> In 35 years of faffing with bikes, I've never worried. I've just snapped
> them into place and ridden. I really don't think it matters.

The leading shoe will wear faster, so my guess is that
the trailing shoe should be the one with the pad material
placed where it makes first contact. (furthest from the
pivot point).

I gather that some drum brake designs will use differently
sized pads because of this asymmetry.

Thanks anyway

> Krusty will be along in a moment with more disinformation :-)

Looking forward to your customary exchange of insults with
Krusty as this thread develops. :-)

Rob Kleinschmidt <(E-Mail Removed)> wrote:

> The leading shoe will wear faster, so my guess is that
> the trailing shoe should be the one with the pad material
> placed where it makes first contact. (furthest from the
> pivot point).
>
> I gather that some drum brake designs will use differently
> sized pads because of this asymmetry.

Maybe. I've never, ever, ever noticed nor worried about it. I buy the
brake shoes and when they're worn, buy a new set, and clip them in.
They're SLS drums: they're not the greatest brakes around, but perfectly
adequate for some appications.

<Shrug>

The only thing I look for is a chamfer on the leading edge. In the past,
I can recall some shoes which had a chamfer on one end, but it was
invariably at the cam end anyway, and you can't put these brake shoes
in the wrong way round, so wtf.

Have you considered it could just be a slight manufacturing defect?

>
> Thanks anyway
>
> > Krusty will be along in a moment with more disinformation :-)
>
> Looking forward to your customary exchange of insults with
> Krusty as this thread develops. :-)

Insults? Moi? I just point out where he makes mistakes. It's a full-time
job, I can tell you :-)

What bike are you putting them in, anyway?

--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ERx2 GN250. Only seven bikes now.
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

On Dec 11, 9:50*am, totallydeadmail...@yahoo.co.uk (The Older
Gentleman) wrote:
> Rob Kleinschmidt <Rkleinsch1216...@aol.com> wrote:
> > The leading shoe will wear faster, so my guess is that
> > the trailing shoe should be the one with the pad material
> > placed where it makes first contact. (furthest from the
> > pivot point).
>
> > I gather that some drum brake designs will use differently
> > sized pads because of this asymmetry.
>
> Maybe. I've never, ever, ever noticed nor worried about it. I buy the
> brake shoes and when they're worn, buy a new set, and clip them in.
> They're SLS drums: they're not the greatest brakes around, but perfectly
> adequate for some appications.
>
> <Shrug>
>
> The only thing I look for is a chamfer on the leading edge. In the past,
> I can recall some shoes which had a chamfer on one end, but it was
> invariably at the cam end anyway, and you can't *put these brake shoes
> in the wrong way round, so wtf.
>
> Have you considered it could just be a slight manufacturing defect?
>
>
>
> > Thanks anyway
>
> > > Krusty will be along in a moment with more disinformation :-)
>
> > Looking forward to your customary exchange of insults with
> > Krusty as this thread develops. :-)
>
> Insults? Moi? I just point out where he makes mistakes. It's a full-time
> job, I can tell you :-)
>
> What bike are you putting them in, anyway?

R100GS. Previous pair was totally symmetric.

Differences between the shoes in the new pair lead
me to believe the vendor had something in mind
when making them asymmetric.

Seems to be a large pile of confusion and misinformation
on this subject out on there on the internet, so I figured
reeky would be a great place to solicit new and imaginative
contributions.

Rob Kleinschmidt <(E-Mail Removed)> wrote:

> R100GS. Previous pair was totally symmetric.
>
> Differences between the shoes in the new pair lead
> me to believe the vendor had something in mind
> when making them asymmetric.

Or, as it's EBC, there's a manufacturing glitch, as I suggested.


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ERx2 GN250. Only seven bikes now.
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

On Dec 11, 9:06*am, Rob Kleinschmidt <Rkleinsch1216...@aol.com> wrote:

> One one shoe, the pad material is placed closer to the pivot
> point and on the other, the pad material is closer to the end
> of the shoe which is driven by the brake cam.

This diagram is from bikebandit.com. It's a 1992 R100GS.

http://a.bikebandit.com/assets/dzima...les/11/3_1.png

The parts list doesn't call out the part number(s?) of the shoes, they
are supplied as part of a *kit*.

> Which shoe should be the primary (leading) shoe ? Is it the
> shoe with the brake pad placed closer to the pivot point or the
> one where the pad material is closer to the cam ?

One might interpret the diagram as showing the top shoe is slightly
different from the bottom shoe as regards the positioning of the
friction material.

On Dec 11, 9:15*am, totallydeadmail...@yahoo.co.uk (The Professional
Asshole) wrote:

> Krusty will be along in a moment with more disinformation :-)

You are formally invited to kiss my ass.

schwarzesonne <(E-Mail Removed)> wrote:

> One might interpret the diagram as showing the top shoe is slightly
> different from the bottom shoe as regards the positioning of the
> friction material.

One would be wrong.


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ERx2 GN250. Only seven bikes now.
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

On Dec 11, 12:36*pm, totallydeadmail...@yahoo.co.uk (The Older
Gentleman) wrote:
> schwarzesonne <schwarze.so...@rocketmail.com> wrote:
> > One might interpret the diagram as showing the top shoe is slightly
> > different from the bottom shoe as regards the positioning of the
> > friction material.
>
> One would be wrong.
>
> --
> BMW K1100LT *Ducati 750SS *Honda CB400F *Triumph Street Triple
> Suzuki TS250ERx2 GN250. *Only seven bikes now.
> Try Googling before asking a damn silly question.
> chateau dot murray at idnet dot com

That link is useless.