old single pivot calipers vs dual pivot calipers

oldskoolkool
Posts: 86
Are dual pivot calipers really any better than old single pivot calipers?I've got some old shimano 105 calipers and they feel really light with stiff arms and positive feel on an old frame and they feel stiifer and more positive than my current shimano ultegra dual pivot calipers.Im looking to upgrade my ultegra kit but should i go Dura-Ace 7800 or look for some old school Dura-Ace 7400 or Suntour Superbe-Pro's then update them with modern brake pads?
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Yes. Much. IMO.d.j.
"Cancel my subscription to the resurrection."0 -
oldskoolkool wrote:Are dual pivot calipers really any better than old single pivot calipers?
I have some 20yr old Campag GS single pivots that can lock both wheels with ease.Brake blocks were bought from Wilko's a few years ago when they were 50p a pair.0 -
Buy Campag and you get one of each. I do find setting up the single pivot rear brake a bit of a pain. The blocks will never meet the rim at the same time, if that matters.0
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wilwil wrote:I do find setting up the single pivot rear brake a bit of a pain. The blocks will never meet the rim at the same time, if that matters.
This is without a shadow of doubt the best reason for getting dual pivot calipers, they're simple to set up and they stay that way. Single pivot are just a huge pain in the arse.0 -
7400 DA are fantastic..... as are old 600's - both stop on a sixpence !0
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Dual Pivot
A type of side-pull brake caliper. The dual-pivot design was originated by Altenburger in the 1960's, and popularized by Shimano in the 1990's.
The main feature of dual-pivot brakes is that they are easier to keep centered, due to the way the arms are linked together. This makes it possible to design them with more mechanical advantage (and the resulting rest position closer to the rim) than conventional sidepulls. Newer designs permit fine tuning the centering of the arms by simply turning a screw.
The principal disadvantage of dual-pivot brakes is that they don't track imperfect rims as well as single-pivot sidepulls, which can cause pulsating braking action.
From Sheldon Brown.0 -
Back to the OP. The reason your old brakes feel stiffer is because they have less mechanical advantage. You are getting less pressure between the blocks and rims for the same lever effort hence the maximum brake affect will be less. I see no point in using inferior brakes just in case I damage a wheel.0
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croggy wrote:bill57 wrote:Single pivot are just a huge pain in the ars*.
there's always one happy to live in the past isn't there!
i bet you ride a steel frame too and like to talk about carbon as 'plastic' and that it will break if you ride over a chalk line.0