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Shimano hangar and straddle wire brake assembly instruction video?
#1
Today I replaced a shimano hangar and straddle wire brake assembly cable and sheath and was successful. What I would like to see now is a video on adjusting these type of brakes, my favorite brakes btw, to see if I missed any short cuts. I googled for a video but couldn't find one. Anyone have URL for a video on this repair?
"Where ever we go, there we are"
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#2
What kind of Shimano brake?  Cantilever, center pull and U-brakes (and probably other types) made by Shimano over the years have staddle wires and hangers. 

Pictures really required.

Cantilever: https://recklesscognition.files.wordpress.com/2008/08/shimanor550brake2.jpg
Center pull: http://1.bp.blogspot.com/_IJWmejgFtpE/TUXtG3GI8iI/AAAAAAAAAEI/CYAM5IOuz04/s400/P1050204.JPG
U-brake: http://unknownbike.iampm.org/7G00368-02-shimano.jpg
Nigel
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#3
(03-16-2015, 12:14 PM)nfmisso Wrote:  What kind of Shimano brake?  Cantilever, center pull and U-brakes (and probably other types) made by Shimano over the years have staddle wires and hangers. 

Pictures really required.

Cantilever: https://recklesscognition.files.wordpress.com/2008/08/shimanor550brake2.jpg
Center pull: http://1.bp.blogspot.com/_IJWmejgFtpE/TUXtG3GI8iI/AAAAAAAAAEI/CYAM5IOuz04/s400/P1050204.JPG
U-brake: http://unknownbike.iampm.org/7G00368-02-shimano.jpg

It is like the 550 you pictured only instead of a yoke it has a hangar. 
"Where ever we go, there we are"
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#4
Ah; cantilevers.

Post type pad mounting: http://sheldonbrown.com/images/BR8787.JPG

Or V-brake pads: http://www.treefortbikes.com/images/raw/TFB10_BR7462-3.jpg

The post type are a BEAR to do, the pads have too many degrees of freedom locked down by one nut.  I have them on my PDG70, but would not put them on a bike.  The Tektro CR 720 is the way to go, if you insist on cantis on a new build.

Either way, do your self a favor and get some Tektro 1246A hangers. 
http://www.niagaracycle.com/categories/tektro-alloy-brake-cable-triangle-w-cable-black?gclid=Cj0KEQjw_pmoBRDu986bpISz5ZsBEiQANiuHDO1EgnyrziX1p7fc07nERDxp8ZggfTEx​t-8cR0wJJfQaAgef8P8HAQ

Post type: First step without the pads in place, install the hanger and get everything symmetrical.  Next put the pads in loosely.  Pull up on the hanger to the point where you want the pads to contact the rim, and some how lock the hanger in place (zip ties aka cable ties are good for this).  Now adjust the pads so they contact the rim, with a little toe in (a piece of paper is a good feeler gauge to get a bit of toe in); a little bit is all you need/want.
[Image: pad_toe_line.jpg]

Lock down the pad, repeat on the other side, making sure that the arms do not move.

Double check everything.

Hook up the brake cable from the lever, and adjust for length.
Nigel
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#5
(03-17-2015, 12:09 AM)nfmisso Wrote:  Ah; cantilevers.

Post type pad mounting: http://sheldonbrown.com/images/BR8787.JPG

Or V-brake pads: http://www.treefortbikes.com/images/raw/TFB10_BR7462-3.jpg

The post type are a BEAR to do, the pads have too many degrees of freedom locked down by one nut.  I have them on my PDG70, but would not put them on a bike.  The Tektro CR 720 is the way to go, if you insist on cantis on a new build.

Either way, do your self a favor and get some Tektro 1246A hangers. 
http://www.niagaracycle.com/categories/tektro-alloy-brake-cable-triangle-w-cable-black?gclid=Cj0KEQjw_pmoBRDu986bpISz5ZsBEiQANiuHDO1EgnyrziX1p7fc07nERDxp8ZggfTEx​t-8cR0wJJfQaAgef8P8HAQ

Post type: First step without the pads in place, install the hanger and get everything symmetrical.  Next put the pads in loosely.  Pull up on the hanger to the point where you want the pads to contact the rim, and some how lock the hanger in place (zip ties aka cable ties are good for this).  Now adjust the pads so they contact the rim, with a little toe in (a piece of paper is a good feeler gauge to get a bit of toe in); a little bit is all you need/want.
[Image: pad_toe_line.jpg]

Lock down the pad, repeat on the other side, making sure that the arms do not move.

Double check everything.

Hook up the brake cable from the lever, and adjust for length.

Thanks Nigel. I notice the brake pads toed in naturally so that was correct. I like the tektro hangars and if the bike shop doesn't have them I will order a couple on line. One thing I am going to check is the spring tension as it seemed quite strong. I think you shoot for a 90 degree angle from the hangar to both brakes? the tektro hangar would make that angle easy to check
"Where ever we go, there we are"
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#6
The Tektro CR 720 are nicely built, but have many drawbacks as high profile brakes do. no heel clearance on smaller frames. Here is a picture of some tektro brakes improperly set up. Because of improper processes and steps omitted before installing the brakes. Sad to say but many supposed "pros" all to often take the 1,3,2, approach to Bike repair. Steps in the order of 1,2,3, etc. are the proper way to do it right the first time.The following photo was taken from this site
http://www.rivbike.com/product-p/brc15153.htm
Do you notice the angle of the pad mounting tabs, two different angles. The front wheel is not properly dished. step one is to make sure the wheel is dished before set up is done with the brakes, no matter what brakes you install, understand Elmore?
now they can go back and do it right hence, 1,3,2, approach. "Professional Rookies"
They are everywhere.
[Image: brc15153-3_zpsb4tyxkjq.jpg]
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
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#7
(03-17-2015, 12:41 PM)painkiller Wrote:  The Tektro CR 720 are nicely built, but have many drawbacks as high profile brakes do. no heel clearance on smaller frames. Here is a picture of some tektro brakes improperly set up. Because of improper processes and steps omitted before installing the brakes. Sad to say but many supposed "pros" all to often take the 1,3,2, approach to Bike repair. Steps in the order of 1,2,3, etc. are the proper way to do it right the first time.The following photo was taken from this site
http://www.rivbike.com/product-p/brc15153.htm
Do you notice the angle of the pad mounting tabs, two different angles. The front wheel is not properly dished. step one is to make sure the wheel is dished before set up is done with the brakes, no matter what brakes you install, understand Elmore?
now they can go back and do it right hence, 1,3,2, approach. "Professional Rookies"
They are everywhere.
[Image: brc15153-3_zpsb4tyxkjq.jpg]
Good picture PK. I'm going to check the brake job I did and correct any of these faults you mentioned.

(03-17-2015, 02:03 PM)elmore leonard Wrote:  
(03-17-2015, 12:41 PM)painkiller Wrote:  The Tektro CR 720 are nicely built, but have many drawbacks as high profile brakes do. no heel clearance on smaller frames. Here is a picture of some tektro brakes improperly set up. Because of improper processes and steps omitted before installing the brakes. Sad to say but many supposed "pros" all to often take the 1,3,2, approach to Bike repair. Steps in the order of 1,2,3, etc. are the proper way to do it right the first time.The following photo was taken from this site
http://www.rivbike.com/product-p/brc15153.htm
Do you notice the angle of the pad mounting tabs, two different angles. The front wheel is not properly dished. step one is to make sure the wheel is dished before set up is done with the brakes, no matter what brakes you install, understand Elmore?
now they can go back and do it right hence, 1,3,2, approach. "Professional Rookies"
They are everywhere.
[Image: brc15153-3_zpsb4tyxkjq.jpg]
Good picture PK. I'm going to check the brake job I did and correct any of these faults you mentioned.

One other question. Are you replacing thee old Shimano hanger and straddle wire brakes with these Tektro brake parts?
"Where ever we go, there we are"
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#8
I would consider the tektro style canti in the picture more suited for a cyclocross bicycle. Most low profile and standard cantilever brakes can utilize a Z link wire without the use of the straddle hanger. For the tektro brakes pictured. you would use the hanger and straddle cable. I would not put those Tektro brakes on anything other than a cyclocross Bike. Stud mounted canti pads are as easy to set up as any other brake, canti or V-brake.
[Image: Shimano-Bremszug-Link-Wire-Y-Typ-B-82-gu...h8kt0m.jpg]
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
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#9
(03-17-2015, 02:30 PM)painkiller Wrote:  ....... Stud mounted canti pads are as easy to set up as any other brake, canti or V-brake.

Bob and I disagree on this one Smile I find V-brakes practically trivial to set up, cantis with stud mount pads take a little bit longer and more attention to detail. Cantis with post mounted are the most difficult.

Z-link vs hangers. I am not sure yet - there people that swear at one or the other; seems like there are very few in the middle. There are some people who use the Tektro hanger on standard old fashion center pull brakes......
Nigel
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#10
I agree that V-brakes set up is a tad easier than post pad style canti's. But for most people that have not done brakes much at all, seem to have trouble with brakes anyway. Elmore, I have not tried to upload a video since the site renovation. I will try to make a video of one way to set pads with canti's and V-brakes that should help a bit. If that fails I will post a string of pics for your amusement! (and mine).
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply
#11
(03-18-2015, 12:35 PM)painkiller Wrote:  I agree that V-brakes set up is a tad easier than post pad style canti's. But for most people that have not done brakes much at all, seem to have trouble with brakes anyway. Elmore, I have not tried to upload a video since the site renovation. I will try to make a video of one way to set pads with canti's and V-brakes that should help a bit. If that fails I will post a string of pics for your amusement! (and mine).

Sounds good PK. 
"Where ever we go, there we are"
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