Pit bull center pull brakes
#3
(rhymes with spook)
Joined: Aug 2009
Posts: 2,786
Likes: 749
From: Winslow, AR
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
pit bull is a name in the bmx world, is it not?
#5
(rhymes with spook)
Joined: Aug 2009
Posts: 2,786
Likes: 749
From: Winslow, AR
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
#6
Senior Member

Joined: Nov 2004
Posts: 23,212
Likes: 3,123
I saw these on entry level ATBs in the late 1980s, when Power Cams and U-brakes were popular. It's based on the Plillips/Phlico brake from the inter-war period. Lee Chi had a similar propduct and there were even high end versions from companies like McMahon. The style is generically referred to as scissor brakes.
#8
multimodal commuter
Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
In my experience the braking power was, uh, limited.
__________________
www.rhmsaddles.com.
www.rhmsaddles.com.
#9
Thread Starter
Senior Member


Joined: Nov 2012
Posts: 1,018
Likes: 855
From: Newport RI
Bikes: enough one would think, but thinking isn't my strong point
#10
(rhymes with spook)
Joined: Aug 2009
Posts: 2,786
Likes: 749
From: Winslow, AR
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
#12
(rhymes with spook)
Joined: Aug 2009
Posts: 2,786
Likes: 749
From: Winslow, AR
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
#13
Thread Starter
Senior Member


Joined: Nov 2012
Posts: 1,018
Likes: 855
From: Newport RI
Bikes: enough one would think, but thinking isn't my strong point
#15
Thread Starter
Senior Member


Joined: Nov 2012
Posts: 1,018
Likes: 855
From: Newport RI
Bikes: enough one would think, but thinking isn't my strong point
#16
multimodal commuter
Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
That is always the question! The problem is that the brake, from handlebar to rim, is a system. It's easy to determine that every component in the system is working as it should, but even so the result is that the system doesn't work. The problem is probably not so much any particular component, but a minor mismatch.
I used a pair of the Philco "Centralpull" brakes (the ones from the 1930's that these were based on) on my Fothergill bike for a while, and they were pretty useless. Part of the problem with the Philco version was that the stud was at one end of the brake shoe, rather than in the middle --that is, the brake shoe plus stud formed an L shape, rather than a T-shape. Not a great idea. These ones seem to avoid that mistake, but that wasn't enough to overcome the combination of long arms and what's basically a bad design.
I used a pair of the Philco "Centralpull" brakes (the ones from the 1930's that these were based on) on my Fothergill bike for a while, and they were pretty useless. Part of the problem with the Philco version was that the stud was at one end of the brake shoe, rather than in the middle --that is, the brake shoe plus stud formed an L shape, rather than a T-shape. Not a great idea. These ones seem to avoid that mistake, but that wasn't enough to overcome the combination of long arms and what's basically a bad design.
__________________
www.rhmsaddles.com.
www.rhmsaddles.com.
#18
Thread Starter
Senior Member


Joined: Nov 2012
Posts: 1,018
Likes: 855
From: Newport RI
Bikes: enough one would think, but thinking isn't my strong point
#19
Extraordinary Magnitude


Joined: Aug 2009
Posts: 14,085
Likes: 2,141
From: Waukesha WI
Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
Exactly!!!
What's the worst that could happen?
What's the worst that could happen?
__________________
*Recipient of the 2006 Time Magazine "Person Of The Year" Award*
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
#20
Senior Member


Joined: Oct 2011
Posts: 10,051
Likes: 2,508
From: Fairplay Co
Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed
These likely won't work good on a road bike they are designed for wider BMX rims and with the short cable pull wont have enough leverage for good braking on narrower road rims. Having the center pull with the brake as single unit seems nice but most I have come across just don't work good. You really need the extra cable pull adjustment of hangers to get good braking on center pulls.
Last edited by zukahn1; 10-04-21 at 07:58 PM.
#22
Senior Member

Joined: Aug 2011
Posts: 22,676
Likes: 2,643
From: CID
Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)
Looks like the arms have convex/concave surfaces where the brake pads mount to allow fine-tuning of the toe-in. That's pretty neat!
#23
Thread Starter
Senior Member


Joined: Nov 2012
Posts: 1,018
Likes: 855
From: Newport RI
Bikes: enough one would think, but thinking isn't my strong point
well then, here is another choice for throw you out of the saddle braking..










Last edited by cocoabeachcrab; 10-06-21 at 04:35 PM. Reason: can't spell worth a sh*t
#24
Senior Member

Joined: Dec 2016
Posts: 2,982
Likes: 1,851
From: Long Island, NY
Bikes: Trek 800 x 2, Schwinn Heavy Duti, Schwinn Traveler, Schwinn Le Tour Luxe, Schwinn Continental, Cannondale M400 and Lambert, Schwinn Super Sport
That is interesting. I had not seen this before. I was looking at the pictures figuring out the movement and asking myself how does it manage to move the pad toward the rim. Then I saw the last picture. Clever, but probably not very good.
If I had them on a vintage bike, I would replace the pad material with pads from Kool Stop and use it. How bad could it be? It has the right motion, perhaps not the right leverage, but that would also depend upon the lever.
So, maybe this arrangement works perfectly good with the right lever and pad?
If I had them on a vintage bike, I would replace the pad material with pads from Kool Stop and use it. How bad could it be? It has the right motion, perhaps not the right leverage, but that would also depend upon the lever.
So, maybe this arrangement works perfectly good with the right lever and pad?
Last edited by Velo Mule; 10-06-21 at 05:07 PM.








