Shimano Tourney Centerpull brake

Are there any secrets to those?

I couldn't even find a pic with all the parts.

It looks pretty standard centerpull tho, right?

--
underground experts united
http://user.it.uu.se/~embe8573

On Mon, 26 Feb 2018 03:18:01 +0100, Emanuel Berg
wrote:
Are there any secrets to those?

I couldn't even find a pic with all the parts.

It looks pretty standard centerpull tho, right?

The main secret is setting up the saddle wire for maximum mechanical
advantage. Sheldon Brown has an article on that for centerpulls and
cantilevers on his web site and there are other sources. Good brake
pads too, the ones with those brakes are likely to be decades old.

Tim McNamara wrote:

The main secret is setting up the saddle wire

There is only one wire what I can see.
And a little arm that connects to it. I guess
that could be a wire on another model instead
of the little arm. By saddle wire, do you mean
the wire-wire or the little arm that could be
a wire?

BTW here we see the advantage of a terminology
poster which John B. ridiculed in another
thread

Good brake pads too, the ones with those
brakes are likely to be decades old.

Good point.

This one is a Mustang from Trelleborg. It has
a "Gel" saddle from Bianchi and the Shimano 5SP
Positron shifter with a single chainring front.
Perhaps somewhat surprisingly it has a kickstand
and a rack. The tires are 32-630 or 27x1-1/4.

--
underground experts united
http://user.it.uu.se/~embe8573

This one is a Mustang from Trelleborg. It has
a "Gel" saddle from Bianchi and the Shimano
5SP Positron shifter with a single chainring
front. Perhaps somewhat surprisingly it has
a kickstand and a rack. The tires are 32-630
or 27x1-1/4.

On the chainring it says
"Japan Threearrows 46T".

--
underground experts united
http://user.it.uu.se/~embe8573

On the chainring it says
"Japan Threearrows 46T".

Sorry that was from another bike. On the road
bike are more "T"s than that!

--
underground experts united
http://user.it.uu.se/~embe8573

On Mon, 26 Feb 2018 22:23:37 +0100, Emanuel Berg
wrote:

Tim McNamara wrote:

The main secret is setting up the saddle wire

There is only one wire what I can see.
And a little arm that connects to it. I guess
that could be a wire on another model instead
of the little arm. By saddle wire, do you mean
the wire-wire or the little arm that could be
a wire?

BTW here we see the advantage of a terminology
poster which John B. ridiculed in another
thread


Hardly ridicule :-) Ever see a terminology poster on the wall of a
shop where people actually knew what they were doing?

I initially trained as a machinist in a shop where actual "Machinists"
worked. The Apprentice Master had gone to work as an apprentice
himself when he was 14 years old and was nearly 70 years old when I
knew him.

Not a poster in sight.



Good brake pads too, the ones with those
brakes are likely to be decades old.

Good point.

This one is a Mustang from Trelleborg. It has
a "Gel" saddle from Bianchi and the Shimano 5SP
Positron shifter with a single chainring front.
Perhaps somewhat surprisingly it has a kickstand
and a rack. The tires are 32-630 or 27x1-1/4.
--
Cheers,

John B.

John B. wrote:

Hardly ridicule :-) Ever see a terminology
poster on the wall of a shop where people
actually knew what they were doing?

I initially trained as a machinist in a shop
where actual "Machinists" worked.
The Apprentice Master had gone to work as an
apprentice himself when he was 14 years old
and was nearly 70 years old when I knew him.

Not a poster in sight.

OK, so I shouldn't do it, just because some
one-dimensional guy you knew didn't do it all
his long life?

Why are you telling me this, really?

--
underground experts united
http://user.it.uu.se/~embe8573

On Tue, 27 Feb 2018 04:41:54 +0100, Emanuel Berg
wrote:

John B. wrote:

Hardly ridicule :-) Ever see a terminology
poster on the wall of a shop where people
actually knew what they were doing?

I initially trained as a machinist in a shop
where actual "Machinists" worked.
The Apprentice Master had gone to work as an
apprentice himself when he was 14 years old
and was nearly 70 years old when I knew him.

Not a poster in sight.

OK, so I shouldn't do it, just because some
one-dimensional guy you knew didn't do it all
his long life?

Why are you telling me this, really?

Why shouldn't you do it? After all if you don't know the name of
things you need help.

But why one-dimensional? A guy who was well enough known in the trade
that people called him when they had problems?
--
Cheers,

John B.

This one is a Mustang from Trelleborg. It has
a "Gel" saddle from Bianchi and the
Shimano 5SP Positron shifter with a single
chainring. Perhaps somewhat surprisingly it
has a kickstand and a rack. The tires are
32-630 or 27x1-1/4.

Today I got the shifting to work!

The only challenge was that the adjustment
screw was behind a plate with a hole in it,
only this hole is too small for all my bits
drivers to enter, so an ordinary, thin PH2 made
it happen.

Altho I measured the old chain pin length to
around 8mm, maybe 8.1, I put on a
KMC Z8RB chain which is 1/2x3/32" with
a 7.1mm (9/32") pin length. I suppose it is
intended for 8S casettes but it worked fine for
the Positron FHEM 5S - at least all sprockets
are reachable when the bike is in the stand.

--
underground experts united
http://user.it.uu.se/~embe8573

On 2/25/2018 8:18 PM, Emanuel Berg wrote:
Are there any secrets to those?

I couldn't even find a pic with all the parts.

It looks pretty standard centerpull tho, right?


Maybe. Which model?
http://equusbicycle.com/bike/shimano.../14shimano.jpg

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971