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Weinmann 610 Center Pull Brakes

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Weinmann 610 Center Pull Brakes

Old 08-21-22, 10:07 PM
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Weinmann 610 Center Pull Brakes

I'm restoring a 1977 Raleigh Super Grand Prix and thought I'd share some of the process. Most would toss these brakes in the parts bin and install something either new or at least in cleaner condition. I've restored over a dozen pairs of Weinmann CP's and it's very easy and satisfying.


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Old 08-21-22, 10:08 PM
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As you can see, they are quite crusty...........





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Old 08-21-22, 10:11 PM
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Complete disassembly and cleanup with a maroon scotch pad, I suppose a green pad would work as well........





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Old 08-21-22, 10:13 PM
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Next I use some NEVR-DULL metal polish


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Old 08-21-22, 10:14 PM
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Then they get buffed with a Micro-Fiber cloth


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Old 08-21-22, 10:16 PM
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Some grease at the pivots......





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Old 08-21-22, 10:19 PM
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Old 08-21-22, 11:27 PM
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The 750s are great for 650b conversions. Grossly underated brakes.
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Old 08-22-22, 02:47 AM
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@branko_76

So, the emblems got binned?

I've never binned any of these, just recently cleaned up a couple of sets and 7 sets of Schwinn Built and Approved steel and alloy calipers as well.

Also just acquired a gross of calipers that I had to buy to get the one single caliper I really wanted and needed. Couple of sets of these in there too as well as several others. They will get stashed for later and some of the others will get processed soon for use as needed.

I do still need a set or two with good "Schwinn Approved" emblems for current projects.
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Old 08-22-22, 03:45 AM
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I am a fan aswell. These are on my Motobecane Grand Touring '83.
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Old 08-22-22, 04:09 AM
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Originally Posted by branko_76
Most would toss these brakes in the parts bin and install something either new or at least in cleaner condition. I've restored over a dozen pairs of Weinmann CP's and it's very easy and satisfying.
I agree and have also cleaned a few of these. Easy to take apart and get into the nooks and crannies. I have a very soft wire wheel, about 3” that I chuck onto the ShopSmith in horizontal mode, low speed. Lightly clean off the sponge and oxidation without scratching the alloy. Then a wee bit lightly on a buffing wheel then Mothers polish. I go a bit lighter on the grease than you did but they alway operate like new when done. Worth the time.
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Old 08-22-22, 05:26 AM
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Agreed. The Weinmann centerpulls are good brakes and easy to clean up. Easy to polish and shine quite nicely!

I'm a little surprised to see that grease was applied to the slot on the rear arm. The slot works with a pin on the front arm to keep the brakes centered. There should be a plastic cap on the pin, and that plastic cap acts to allow the pin to slide easily in the slot. The grease shouldn't be needed, and will likely just collect dirt and crud that will act as an abrasive.

I've been impressed with how long the plastic bushings on the pivots last. I had a Raleigh Gran Sport that I rode for 14 years, and never saw any noticeable wear on the plastic bushings.

Steve in Peoria
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Old 08-22-22, 05:46 AM
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I built a new mixte frame for my wife and used these!
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Old 08-22-22, 06:48 AM
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I figure if they were standard equipment on the Paramount, they are very good brakes. I’ve been tempted to put Mafac Racers on my Grand Jubile but — Paramount!
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Old 08-22-22, 06:58 AM
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Playing in the Clunker Challenges over the last few years has given me a new appreciation for Weinmann Vainquer 999 centerpulls, decent to better quality 27 x 1 1/4 tires at 70 psi, Normandy Sport hubs and Weinmann 27-in rims. For just going out for a nice ramble on the bike, they're all absolutely fine, and sometimes precisely the equipment that sort of ride needs. In the late 70s I was sooooo eager to "upgrade" to a bike with sidepulls, because centerpulls were so passe. Then one day I looked around the bike cave and realized I had Weinmann centerpulls on FIVE different bikes in there ... what's really fun is to run these calipers with modern stainless cables and Teflon-lined housings and good aero levers. The set I'm running with Tektros on my '73 Raleigh Competition is an amazingly smooth and powerful brakeset!
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Old 08-22-22, 07:08 AM
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Agreed that these are nice brakes and are very serviceable. Kool stop brake pads are a nice upgrade.
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Old 08-22-22, 07:30 AM
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Originally Posted by merziac
@branko_76

So, the emblems got binned?
They came off in one piece but the adhesive stayed with the calipers, I need to figure out how to glue them back on
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Old 08-22-22, 07:36 AM
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Originally Posted by Prowler
I agree and have also cleaned a few of these. Easy to take apart and get into the nooks and crannies. I have a very soft wire wheel, about 3” that I chuck onto the ShopSmith in horizontal mode, low speed. Lightly clean off the sponge and oxidation without scratching the alloy. Then a wee bit lightly on a buffing wheel then Mothers polish. I go a bit lighter on the grease than you did but they alway operate like new when done. Worth the time.
That is precisely how I do mine which I documented here a few years ago, wonder if it rubbed off on you?

I did the rear caliper with just the scotch pad and metal polish to show that they can be easily restored without machinery.
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Old 08-22-22, 07:39 AM
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Originally Posted by steelbikeguy
Agreed. The Weinmann centerpulls are good brakes and easy to clean up. Easy to polish and shine quite nicely!

I'm a little surprised to see that grease was applied to the slot on the rear arm. The slot works with a pin on the front arm to keep the brakes centered. There should be a plastic cap on the pin, and that plastic cap acts to allow the pin to slide easily in the slot. The grease shouldn't be needed, and will likely just collect dirt and crud that will act as an abrasive.

I've been impressed with how long the plastic bushings on the pivots last. I had a Raleigh Gran Sport that I rode for 14 years, and never saw any noticeable wear on the plastic bushings.

Steve in Peoria
The plastic bushings were still in good shape but in the past I've come across bushings that were cracked so now I use grease in the slot.
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Old 08-22-22, 07:55 AM
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Originally Posted by branko_76
.

Some grease at the pivots......





One thing I found very useful in brake caliper refurb is to put a dab of grease between each of the ends of the spring and the little aluminum features they will contact. Some small motion and sliding occurs at those points. It really helps add a little more smoothness.
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Old 08-22-22, 07:57 AM
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Originally Posted by Road Fan
One thing I found very useful in brake caliper refurb is to put a dab of grease between each of the ends of the spring and the little aluminum features they will contact. Some small motion and sliding occurs at those points. It really helps add a little more smoothness.
Yes, absolutely, I was in a hurry last night and had neglected to do that.
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Old 08-22-22, 07:59 AM
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ShopSmith 10ER set to the lowest speed with a soft wire wheel....

https://www.bikeforums.net/classic-v...erailleur.html





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Old 08-22-22, 08:45 AM
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There was a time long ago when center-pull brakes were considered better than side pull. For example in the Schwinn line up, the Varsity got side pull and the Continental and bikes above it got center pulls. Most pros in the 60's and into the 70's were using center pull.

Here is my Continental with the original brake on the front. The Schwinn Approved didn't peel off, it faded away. That is ok with me.



Later on side pull brakes became the preferred caliper.
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Old 08-22-22, 09:42 AM
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Who's tossing Weinmann brakes? Not me.

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Old 08-22-22, 09:47 AM
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Originally Posted by non-fixie
Who's tossing Weinmann brakes? Not me.
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