Unusual Shimano Tourney Front Center Pull Brake
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I have had a pair (not sure if i sold these at the last swap or not) and also found them to be disappointing: no real improvement over Weinmann/DiaCompe CPs and if anything slightly worse...no idea why they under-perform, it's not an obvious defect.
Anybody who wants a pair PM me and I'll see if I still have 'em.
Anybody who wants a pair PM me and I'll see if I still have 'em.
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^I don't believe there was any perceptible sliding of the cable in that "yoke" in actual use...but that's based on foggy memory and not scientific testing. Could be just the geometry of the arms/pivots being slightly different (and not better) to the time-tested Brands W, DC and M...
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There is no sliding involved.
The geometry of those calipers is very similar to a Weinmann 610. I used to have a side by side picture for comparison, but Image Shack seems to have lost it.
The geometry of those calipers is very similar to a Weinmann 610. I used to have a side by side picture for comparison, but Image Shack seems to have lost it.
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I don't want to get in on the speculations for the reasons that they are not really that great of brakes, but will chime in that I had a set on my Maruishi, one of the first bikes that I started messing with. It was not to long before I swapped them with some Mafacs. Years later, I put them on another beater bike, and took them right back off and found some Wienmanns.
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I do my best to ensure that my yoke cables are smooth and free or unwanted bends. I smooth the old cable with aluminium foil, then apply grease to the cable. As for the yoke, itself, I test the action of the yoke cable in the yoke, to ensure that there is no binding. Why do I do this..?
I always thought the purpose of the yoke was to transmit force and to help center the yoke on the yoke cable. Perhaps I was over thinking the system, but they do seem to work pretty good once I set them up the way I just described.
While on the subject, I just installed these yoke pulleys on my Bianchi and they work great. I had to free them up, ensuring that the pulley rotated freely, before I installed them...
I always thought the purpose of the yoke was to transmit force and to help center the yoke on the yoke cable. Perhaps I was over thinking the system, but they do seem to work pretty good once I set them up the way I just described.
While on the subject, I just installed these yoke pulleys on my Bianchi and they work great. I had to free them up, ensuring that the pulley rotated freely, before I installed them...
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Here is a picture of the Shimano 500 brake on my commuter bike.
BTW, the cable does slide in the yoke, but only a small amount, so there is not a lot of friction added.
BTW, the cable does slide in the yoke, but only a small amount, so there is not a lot of friction added.
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It seems like you could smooth out that action with a piece of cable liner. What do you think of these brakes?
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A cable liner is not going to fit, the yoke is too narrow and it is not necessary, there is only a tiny amount of friction.
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One more digression: These Weinmann CP brakes were originally on a Motobecane Grand Touring, now reside on my Grand Jubile along with a Stronglight triple crank from the same donor. I have only seen a couple of other examples over the years. Don
#37
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FWIW the brakes that I initially referred to work fine. I'm using Cane Creek "Grey Matter" pads which are designed for steel rims. They're softer than the Kool Stops, so wear faster BUT they don't squeal.
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It has been a while since I have worked on these but have some kicking around.
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I don't want to get in on the speculations for the reasons that they are not really that great of brakes, but will chime in that I had a set on my Maruishi, one of the first bikes that I started messing with. It was not to long before I swapped them with some Mafacs. Years later, I put them on another beater bike, and took them right back off and found some Wienmanns.
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Same here. They take patience to set up, but I've done it enough times that I can do it easily. That's not a selling point to people without experience with them. I haven't upgraded the hardware, only changed the pads to Kool Stop.
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The stock hangars tend to be very flexible, swapping them for stiffer ones makes a huge difference in response.
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Good point, @Sixty Fiver. My only bike with them is my Super Course. The front has the original Weinmann hanger, which is good, and the rear has the brazed-on loop, which is even better.
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Does anyone here know if there's a way lighten the action (lighter springs?) of Dia Compe/Weinmann 610's? I've been using them for a year and they work great I just wish I could get a lighter lever feel.
Last edited by 50voltphantom; 08-10-16 at 11:57 AM.
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I have them on my 'Ronnie Hearse' (a you-know-who imitation with a British frame and cheap Japanese parts). They work fine, like all Shimano parts do. And they have the reach to deal with the 27" to 28" conversion.
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You were already wrenching on MAFAC brakes at the age of five?
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I've found them very valuable when working on some of the older styles of brake setups.
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Oh yeah, I'm sure I could figure it out easy enough, I was just making a joke about how easily I'm distracted by vintage bling, and how fast the tool made adjusting a set of centerpulls
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Do you think they knew it was a weakness of their brakes?
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