Cyclocross canti question.

[LeonL]

Hello all. We are rebuilding a old gazelle cross trophy cyclocross bike but ran in a brake problem.

The bike cane with suntour xc pro canti's but they were missing al kind off parts. So I tried a new set of tektro onix and the pads won't go low enough.
Anyone know a alternative for the xc pro's? Preferably not to expensive.

 

[chickendrumsticks]

Perhaps you're using 700c, but should be 27 x 1 1/4?

 

[Guinessisgoodforyou]

Cantilever posts appear to be old style narrow fitting. Low profile modern cantis don't usually fit. A set of Mafacs would work.

 

[squirrelchaser]

^ what Guiness said . You might get a better result with a lower profile brake block or if you remove the spacers between the block and the canti arm or reseat it at more than 90 degrees to the cantilever itself . The block prescribes an arc so it'll start to come down as it goes through the arc .

 

[LeonL]

Thanks for the quick replies. They are indeed 700c that's what it had when we got it. But it got al kind of different parts. Suntour brakes and front mech. Campa wheels and shimano rear mech. I try if I can get 27 wheels.

 

[doctor-bond]

I don’t know whether it takes 700c or 27 1 1/4, but the clearance at the back looks quite tight even with the road tyre you have fitted, so would 27 and a cross tyre fit? Aren’t Gazelles Dutch so more likely to be metric 700c? I’d be tempted to try a different old style cantilever before splashing on new wheels.

(I can send you a pair of Old skool Dia Compe 962s to try if helpful)

 

[pigman]

A proper cross frame would have 700Cs, not 27". This is because sprint wheels with cross tubs would have been used

 

[Old Ned]

I have a LOT of Shimano cantis that are available. I have them on my 80's Paul Milnes CX frame and they work fine with 700c. Please PM me if you would like some.

 

[LondonClassic]

Any canti where you can angle the pad posts on a wider range will work. You want a low cost solution check these out.:

Suntour self-energising (SE) rear brake cantilever

Using the Pedersen designed 'self energising' system, these brakes take the rotation of the rim and turn it into braking energy. As the pads contact the rim, they 'energise' the canti arms, dragging them slightly forwards and further inwards, thus creating extra braking power. Made in Japan...

www.sjscycles.co.uk

And if you want to go super nerdy, check out this Canti angle optomiser site:

MAITOY: Cantilever Brake Geometry

 

[grantoury]

Thanks for the quick replies. They are indeed 700c that's what it had when we got it. But it got al kind of different parts. Suntour brakes and front mech. Campa wheels and shimano rear mech. I try if I can get 27 wheels.

I am certain it is not the wheel size. 700c is the correct wheel size. It is the canti studs. Ideal would be to find 70s/80s cantilevers.