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Old 03-27-08, 10:40 AM   #1
americais1984
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Drilling a hole through the center of my fork?

I bought a zefal low rider front rack for a little tour I'm taking, and it requires a hole in the center of the fork that is not there. I can't use a clamp to attach it do to the design of the rack - I don't think there is any way to attach it without having a hole in the center of the fork.

My question is this will drilling a hole in the center of my fork significantly weaken it to the point of potential calamity? Or will it probably be fine? I've heard from people saying that it will make my fork super brittle unless I can weld the screw into the hole I drill or something - however I don't have access to a welder.

Advice? Tips? ridicule?

Thanks!
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Old 03-27-08, 10:43 AM   #2
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Ask of the frame builders forum, as well. I think I would be inclined to have it done by someone that could add a proper rack braze-on. Or I would find a fork that has them already. Whichever is cheapest.
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Old 03-27-08, 10:51 AM   #3
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The "hole" for touring forks is actually a brazed or welded on boss, not just a hole drilled in the fork blade. I wouldn't do it. If you can't find a frame builder to fit the proper attachment, I'd buy a suitable new fork or make the clamps work.

Another thought: travel lighter so you don't need a front rack!
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Old 03-27-08, 11:00 AM   #4
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When you say you want to drill a hole in the ″center of the fork″ are you talking about drilling the hole in the fork crown...or in the blade itself? The fork crown can be drilled if it is chromoly, and beefy enough. But if you mean the fork blade...I'd be looking for a different rack first, there are many that will mount to the fork blades using P clamps.
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Old 03-27-08, 11:06 AM   #5
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The people who made the racks forgot one thing;

The rack is supposed to bolt to the hole where the caliper brakes are mounted.

But there aren't many bikes with caliper brakes anymore.

The Bicycle Industry switched to Vee Brakes about fifteen years ago.

So that's why there is no hole at the crown of the fork.

I would say yes, drilling a hole will weaken the fork, possibly with disastrous consequences.
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Old 03-27-08, 11:18 AM   #6
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Originally Posted by hotbike View Post
The rack is supposed to bolt to the hole where the caliper brakes are mounted.

But there aren't many bikes with caliper brakes anymore.

The Bicycle Industry switched to Vee Brakes about fifteen years ago.

So that's why there is no hole at the crown of the fork.
"Low rider" front racks are attached to eyelets in the dropouts and to threaded bosses about 1/2 way up the fork blades, not to the fork crown brake mounting hole.
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Old 03-27-08, 11:33 AM   #7
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Lets make it a point to stop calling the one on the blades a "whole". As HillRider points out, it is a bit more than a whole in the work. The ones I have seen are reinforced.
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Old 03-27-08, 11:35 AM   #8
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Originally Posted by hotbike View Post

But there aren't many bikes with caliper brakes anymore.

The Bicycle Industry switched to Vee Brakes about fifteen years ago.

I beg to differ, my friend. Almost all new road bikes have caliper brakes on them. And for touring bikes, its usually cantilever brakes. The only bikes I've seen with V brakes are usually mountain bikes.
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Old 03-27-08, 11:35 AM   #9
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Could one use P Clips to wrap around the fork blade and use a nut and bolt to mount the rack to the clip and squeeze the clip closed on the fork blade?





Like above?
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Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 03-27-08, 01:08 PM   #10
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Exactamundo!!!!
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Old 03-27-08, 01:17 PM   #11
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Exactamundo!!!!
Did not see your post suggesting this above.
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Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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