Need help with strange v brake problem

I'm building up a rather vintage mountain bike frame with new(er) parts, most of the problems I've come across I've been able to bodge and over come, but this is something else. I bought some tektro v brakes as an upgrade for the old cantilevers but upon instaling them I reallised the "spring hole" is on the wrong side of the braze on ( its on the outside rather than the in). Is this a common problem and is there any solution? See pic for details: http://tinypic.com/view.php?pic=qxtatv&s=6 . Cheers

Owen

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just mount the brakes backwards, you need an inverse rim.

Eh?

Expensive possible solution is to use cantis with 'external' tensioners;

http://brimages.bikeboardmedia.netdna-cdn.com/wp-content/uploads/2011/07/IMG_0669.jpg

Old mtbs are sent to try us.

just mount the brakes backwards, you need an inverse rim.

a moebius rim will flip this around

Don't confuse the poor guy

drill new holes?

just seen there isn't room

can you not just over stretch the springs?

Don't want to splash out on a new rim, I did try the 'over tension' idea but it ain't happening. Did wonder about filing off the braze ons and getting some bolt on ones, will probably just stick with the old Weinmann cantis'. Cheers anywazz

drilling new holes in hard steel brake mounts won't be fun, but you could use a needle file to make some slots where you want the spring to locate without too much trouble.

/seriousanswer

I don't think there's enough room on the braze on for that, is this setup typical of older cantilevers?

You could probably get some Magura hydraulic brakes on there.

Put old cantilever back and do it like this;

Cheers for the help guys