Raleigh Sport Drum Brake Dilemma

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06-02-13 | 10:33 PM

canflyboy

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Raleigh Sport Drum Brake Dilemma

I have a 70s Raleigh Sport with a 90mm o.l.d. dimension front fork. I want to convert to drum brakes. All the Sturmey Archer drum brakes are 100mm o.l.d.

Did SA ever make a 90mm o.l.d front drum brake? Is there a Raleigh front fork from another model with 100mm o.l.d that will work?

Thanks

Canflyboy

06-03-13 | 04:49 AM

wahoonc

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From: On the road-USA

Bikes: Giant Excursion, Raleigh Sports, Raleigh R.S.W. Compact, Motobecane? and about 20 more! OMG

You "might" be able to thin the drum brake down by removing a spacer (I would have to go look) Yes they did make drum brakes back in the day, they look just like a dyno hub except they have the arm on them, same housing. You can spread the forks to make the 100mm hub fit, you will most likely have to file the drop outs for the new axle to fit too.

Aaron

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06-03-13 | 04:57 AM

Velognome

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Bikes: 1917 Loomis, 1923 Rudge, 1930 Hercules Renown, 1947 Mclean, 1948 JA Holland, 1955 Hetchins, 1957 Carlton Flyer, 1962 Raleigh Sport, 1978&81 Raleigh Gomp GS', 2010 Raliegh Clubman

The BF series are all 90mm. Here is a link to all the old & new hubs https://sheldonbrown.com/sturmey-archer.html

06-03-13 | 07:10 AM

SirMike1983

Sturmey Archer Hub

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From: New England

Bikes: Old Schwinns and old Raleighs

Correct- the hub you're looking for is the Sturmey Archer BF ("Brake Front") model.

https://hadland.files.wordpress.com/2012/07/sabfbr.pdf

You can rig them either for cables or rods.

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