Clamp on for cantilever brake post conversion - good / bad?
06-05-14, 12:39 PM
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Clamp on for cantilever brake post conversion - good / bad?
I recently acquired a 1993 Stumpjumper that I thought would have been a quick repair and fun non-suspension ATB ride. Wrong.
I like the frame and tubing but its in dire need of work. Has two minor dents, beginning corrosion and badly scratched. Has the rear cantilever brakes. Could leave as is but want a pretty bike and so a repaint it is.
The fork is incorrect but kind of cool. Its an early steel bi-plane for early 26" road wheel with a junk caliper brake. Its wide crown could fit some fat rubber however the blades are sans cantilever bosses.
I'm now leaning towards a dirt drop conversion with some retro styling cues and keeping the fork. In addition, want to go from 26" atb to 700c with lightweight cross tires. I want a V-brake or cantilever set-up. The easy route would be replacing the fork but the looks of this one appeals me.
Being the fork doesn't have cantilever brake bosses, I could attempt braze-ons but also curious of the clamp-on conversion posts. Wondering if they work or are they a flimsy band-aid approach? Also, Ive only found the clamp-on post for round fork blades. Is there a source for the oval fork blade type?
I like the frame and tubing but its in dire need of work. Has two minor dents, beginning corrosion and badly scratched. Has the rear cantilever brakes. Could leave as is but want a pretty bike and so a repaint it is.
The fork is incorrect but kind of cool. Its an early steel bi-plane for early 26" road wheel with a junk caliper brake. Its wide crown could fit some fat rubber however the blades are sans cantilever bosses.
I'm now leaning towards a dirt drop conversion with some retro styling cues and keeping the fork. In addition, want to go from 26" atb to 700c with lightweight cross tires. I want a V-brake or cantilever set-up. The easy route would be replacing the fork but the looks of this one appeals me.
Being the fork doesn't have cantilever brake bosses, I could attempt braze-ons but also curious of the clamp-on conversion posts. Wondering if they work or are they a flimsy band-aid approach? Also, Ive only found the clamp-on post for round fork blades. Is there a source for the oval fork blade type?
06-05-14, 01:00 PM
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Have you ever noticed that cottered cranks made of aluminum are very rare and very expensive; and when you find one, it's always in NOS condition? There's a reason for that. They weren't a great idea.
My suspicion is that the same is true of these clamp-on cantilever bosses.
My suspicion is that the same is true of these clamp-on cantilever bosses.
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06-05-14, 01:14 PM
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Use drum brakes. It'll solve your problem. Downside: they can be heavy.
06-05-14, 06:08 PM
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Have you ever noticed that cottered cranks made of aluminum are very rare and very expensive; and when you find one, it's always in NOS condition? There's a reason for that. They weren't a great idea.
My suspicion is that the same is true of these clamp-on cantilever bosses.
My suspicion is that the same is true of these clamp-on cantilever bosses.
06-06-14, 10:32 AM
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I agree with due route, you'll be happier with it long term and if the fork is not original it could probably benefit from a Can of glass black rust paint to the whole shebang.
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06-06-14, 10:42 AM
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06-06-14, 03:56 PM
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Fix this frame up only because you want the experience of doing it, not because it makes sense. Pay attention and notice that frames are actually the cheapest things around, if you wait long enough. If you want a frame that doesn't have these problems, just wait, and it will come.
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06-06-14, 04:19 PM
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Fix this frame up only because you want the experience of doing it, not because it makes sense. Pay attention and notice that frames are actually the cheapest things around, if you wait long enough. If you want a frame that doesn't have these problems, just wait, and it will come.
06-06-14, 04:34 PM
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Moots mounts are what the oval ones are called. They're expensive when you find them.
If you're painting, braze them.
If you're painting, braze them.
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