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Un-Scientific Centerpull Brake Review

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Un-Scientific Centerpull Brake Review

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Old 12-04-18, 03:19 PM
  #26  
Dfrost 
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The Gugificazione treatment to my Miyata 912 fork included posts for a Gran Compe 610 brake, giving mounting locations for the front rack as well as maintaining fender clearance after the re-rake. I’ve got KoolStop Cross full-salmon pads (still using road pad holders in this photo) and love the braking feel and modulation. They squeal only once in a while at high speeds, but definitely not an issue. I also tried a MAFAC Racer with the Compass upgrades and salmon pads on the same posts, but didn’t notice any improvement in power or feel, and the squeal was nearly constant. So GC stayed, and its as nice a brake as the dual pivot that was there before the mods. BTW, a sweet addition was the roller straddle cable carrier with quick release.

Anybody want to buy a single Racer set with the upgrades, spare pads, and some polish work accomplished?




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Old 12-04-18, 03:33 PM
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That's a Dia-Compe 610, not a Gran- Compe. The present Dia-Compe company, for some reason, has a Dia- Compe line and a Gran- Comp line of components,
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Old 12-04-18, 09:01 PM
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My 77 Centurion Pro Tour has Braze On Center pulls "Dia-Compe G-Type" it says in the catalog, not sure what it means

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Old 12-05-18, 11:12 AM
  #29  
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Gran Compe is the fancy version of Dia Compe. Like Lincoln instead of Ford. They are simply the deluxe version with better finish and some upgraded bits and pieces -- for the most part. The short reach Gran Compe 450 center pulls were Gran Compe only. For that matter all but the GC 450 were license built versions of Weinmann CP brakes. As someone noted, even the Weinmann labeled brakes were made in various places.

I'm not sure if "G-Type" was an earlier version of Gran Compe, or if it meant braze on. A bit before my time. Anyone know?
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Old 12-05-18, 03:20 PM
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Zeus 2000 was one of the prettiest centerpull calipers:

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Old 12-05-18, 05:38 PM
  #31  
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Originally Posted by fleslider View Post
My 77 Centurion Pro Tour has Braze On Center pulls "Dia-Compe G-Type" it says in the catalog, not sure what it means

I dig that frame, and have been keeping my eye open for one for a while... I hope your restoration goes perfectly..
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Old 12-06-18, 12:58 AM
  #32  
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Originally Posted by RobbieTunes View Post
Sort of OT question: What is the difference between Weinmann 610 and Weinmann 610 Vainquer 999?
I am no expert, but I can say that the “610” refers to the caliper length. The Vainqueur is the actual model number. The Weinmann Vainqueur models marked 725 have a longer reach. They were commonly sold in sets with the 610 on the front and the 725 on the rear.
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Old 12-06-18, 09:06 AM
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First, I think the long one is a 750, not a 725. Second, I think 999 referred to a pair of calipers where you get the 610 and the 750.
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Old 12-06-18, 01:19 PM
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Originally Posted by JohnDThompson View Post
Zeus 2000 was one of the prettiest centerpull calipers:

Interesting serrated marking at the pivot fastener -decorative?

I'm a fan of the old MAFAC Racer with its shoe mount slot in plane with the arm. The post assembly may weigh more but adjustability for toe is easy peasy.
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Old 12-06-18, 01:30 PM
  #35  
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Soon to use the GB Coureur 66 on another build.

Note the casting wrapped around the arm pivots.



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Old 12-06-18, 01:30 PM
  #36  
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Originally Posted by SamSpade1941 View Post
I dig that frame, and have been keeping my eye open for one for a while... I hope your restoration goes perfectly..
Thanks! i really dig these old Pro Tours.
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Old 12-06-18, 01:52 PM
  #37  
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Originally Posted by crank_addict View Post
Interesting serrated marking at the pivot fastener -decorative?
Quite possibly:

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Old 12-06-18, 02:32 PM
  #38  
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Originally Posted by JohnDThompson View Post
Quite possibly:

Those were some of the coolest centerpull brakes ever.

They made them in black too, BTW -- since we are discussing vintage black parts in another thread. I still remember a Zeus came into the shop where I worked with the complete black Zeus 2000 group including those brakes. Never saw another set like it. It seemed impossibly cool and exotic at the time. It's hard to see from a photo how delicate and graceful they are in person.

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Old 12-06-18, 05:08 PM
  #39  
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I put some Tourneys on my recently rebuilt 510 to help maximize fender clearance. They've got a lower profile than Weinmann/Dia Compe, but seem a bit flexy when I test them in the stand. They stop really quick, though, very easy to lock up.

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