531colin wrote: ↑8 Oct 2023, 6:08pm
... in Jonathan's picture it looks like the "bolt with a hole in it" (draw bolt?) nips up against the brake arm, rather than the brake pad stud.....?
...and the bolt which screws into the pad sets the toe-in?
The nut at the top left runs down the thread to clamp the right-angled connector to the brake arm.
Friend of mine had an issue with one of these brakes. Used a Shimano Tiagra Pad which had a captive internal thread rather than an external threaded stud, with suitably long bolt.
Can't remember if the curved spacer next to the back of the original block is free or if we had to drill it off .
The Weinman Cantilevers are great brakes . Have one on a trike.
PS Brucey just beat me to the punch there .
Last edited by Barrowman on 8 Oct 2023, 7:08pm, edited 2 times in total.
The nut at the top left runs down the thread to clamp the right-angled connector to the brake arm.
That connector has an oversize hole to allow the m6 bolt which the brake shoe sits on a bit of wiggle room to allow precise angular setting of the block against the rim.
Peugeot 531 pro, Dawes Discovery Tandem, Dawes Kingpin X2, Raleigh 20 stowaway X2, 1965 Moulton deluxe, Falcon K2 MTB dropped bar tourer, Rudge Bi frame folder, Longstaff trike conversion on a Giant XTC 840, Giant Bowery, Apollo transition.
The nut at the top left runs down the thread to clamp the right-angled connector to the brake arm.
That connector has an oversize hole to allow the m6 bolt which the brake shoe sits on a bit of wiggle room to allow precise angular setting of the block against the rim.
Thankyou very much.
SJS Cycles have checked, and they are M6. That's the same as the originals.
The nut at the top left runs down the thread to clamp the right-angled connector to the brake arm.
That connector has an oversize hole to allow the m6 bolt which the brake shoe sits on a bit of wiggle room to allow precise angular setting of the block against the rim.
I’m using some very similar Fibrax blocks on my bike. ASH 470 which I bought direct from Fibrax, they are also available on-line too at: https://www.ebay.co.uk/itm/154647782993
Don’t fret, it’s OK to: ride a simple old bike; ride slowly, walk, rest and admire the view; ride off-road; ride in your raincoat; ride by yourself; ride in the dark; and ride one hundred yards or one hundred miles. Your bike and your choices to suit you.
Thanks, everyone, for all of the advice and support.
And especially to rjb: those Clarks CP250 fit without any fettling required... as long as you keep the original long bolt that goes into the threaded receiver in the block.