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Computer mount to replace headset cap?

Old 06-11-13, 10:34 AM
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Computer mount to replace headset cap?

I use a Cateye MITY 3, and I recently broke one of my mounts. I can borrow the MTB "B" bike mount for a while, but meanwhile I'm shopping for a replacement, and what I would really like, is a headset cap mount.

I'm not talking about those things that can install or under a headset cap and give horizontal riser bars that you can mount any handlebar accessory on, I want a mount which actually is a headset cap. I.e. the bottom functions as a headset cap, and the top functions as a cycle computer mount. The wire could even run inside the steerer tube (I'm working with a CrossCheck here, so hollow on the bottom, and I don't have fenders to worry about).

I've found this old thread, and it contained no answers.

If I can't find anything, I guess I'll just buy this stem-mount, and try to McGuyver some way to attach this to the headset cap (hopefully I can drill a hole to give access to the stem cap bolt, or if it mostly covers the hole, maybe just drill a hole, find a flat-as-possible-headed replacement bolt, and use it as a stem cap. Run my wire through the steerer, and make a notch in my top spacer so the wire doesn't get severed by compression.

But I'm curious why there is not a larger cottage industry of specialized stem-cap replacement accessories. There is Stem Captain (and a compass stem cap would be really useful, but if they report problems with a steel bolt, it probably wouldn't work with a steel steerer tube), but why hasn't China produced knockoffs yet?
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Old 06-11-13, 10:57 AM
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a substitute for the cap , then the computer goes on the tube above it all
CNC machined in one piece..
https://www.paulcomp.com/stemcaplightmount.html

There's plastic hose clamp like things like Chronometro Knobs that will Strap
a right angled cylinder, onto the side .. of stuff.. no fuss, no marks.

my favorite computer mount site was on the fork blade,
on my touring bike it sat between the cantilever brake and the Low rider rack mount.

Only used its Odometer and trip distance function, speed was a que' sera thing..
so I don't need it right under my nose..

YMMV..

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Old 06-11-13, 11:09 AM
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You can buy a stem cap computer mount from Specialized and maybe adapt it to fit your Cat Eye Mount but zip tieing the cat eye mount to the specialized mount?

https://azbluescat.blogspot.com/2010/...ter-mount.html
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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 06-11-13, 11:16 AM
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Originally Posted by fietsbob
Thanks for playing, but I said "I'm not talking about those things that can install or under a headset cap and give horizontal riser bars that you can mount any handlebar accessory on"
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Old 06-11-13, 11:23 AM
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Originally Posted by jsharr
You can buy a stem cap computer mount from Specialized and maybe adapt it to fit your Cat Eye Mount but zip tieing the cat eye mount to the specialized mount?

https://azbluescat.blogspot.com/2010/...ter-mount.html
Hmm, I can't see pics at that link due to work's firewall, I'll have to check at home; googling found me this pdf that mentions this option in words but where pictures should be it says "Need illustration of...". If I could find another brand of mount, would connecting the electronics be a simple matter? Do all wired cyclocomputers send equivalent "blips" up the wire every time the magnet passes the sensor?
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Old 06-11-13, 11:30 AM
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Originally Posted by RubeRad
Hmm, I can't see pics at that link due to work's firewall, I'll have to check at home; googling found me this pdf that mentions this option in words but where pictures should be it says "Need illustration of...". If I could find another brand of mount, would connecting the electronics be a simple matter? Do all wired cyclocomputers send equivalent "blips" up the wire every time the magnet passes the sensor?
My thought is too just use the other manufacturers stem cap mount and zip tie your mount to it. Sort of a work around.







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Originally Posted by colorider
Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 06-11-13, 11:48 AM
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Originally Posted by jsharr
My thought is too just use the other manufacturers stem cap mount and zip tie your mount to it. Sort of a work around.
Ah, I see now. Thanks for pulling the pics for me!

That's closer to what I was envisioning, (and kinda cool that the angle is adjustable), but still there's that stem cap, sitting there being useless and hogging valuable real estate.

I wonder how hard it would be to clone various manufacturers' cyclocomputer mounts, except with direct-mount as headset cap. A few hours on open source CAD software, a few bucks for a company to 3D print a prototype, and there's a kickstarter if I ever saw one! (it would be especially easy for wireless models)
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Old 06-11-13, 11:51 AM
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I have a specialized computer that uses the mount pictured. It is wireless. I love the adjustabiltiy it give me. Easy to tilt and move the computer, etc. and it leaves the stem free under neath, so I can hang the batter pack for my MagicShine headlight off the stem.
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Originally Posted by colorider
Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 06-11-13, 01:04 PM
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https://www.excelsports.com/main.asp?...jor=3&minor=18

Here is my suggestion... It is a better location than on the stem.

~Steven
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Old 06-11-13, 01:18 PM
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My guess is you are looking for something like this, only a bike computer. These are the only ones I've seen but you might want t contact them and see if they have one in the works..https://www.stemcaptain.com/

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Old 06-11-13, 01:35 PM
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Originally Posted by Lasrsktr
https://www.excelsports.com/main.asp?...jor=3&minor=18 Here is my suggestion... It is a better location than on the stem.
Hmmm, not at all what I was thinking of, but being a replacement mount (rather than a mount to mount your mount on) it is a good looking product. Unfortunately the list of compatible computers does not include MITY anything. I think that whole Strada series uses a different mount.
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Old 06-11-13, 01:35 PM
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Originally Posted by onespeedbiker
My guess is you are looking for something like this, only a bike computer. These are the only ones I've seen but you might want t contact them and see if they have one in the works..https://www.stemcaptain.com/
Yes, I did mention Stem Captain in OP, but it's a good idea to poke them to see if they're moving in this direction at all.
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Old 06-11-13, 01:38 PM
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HOWEVER:

Just got back on a lunchtime ride, and noted more closely where my stem cap is; it's kinda low, the whole head tube is pointed at my throat generally speaking, it probably would be better to just go with the Cateye stem mount (rather than handlebar mount) since I know that will work. I'll try some Dremel-fu, see if I can cleanly route the wire up the inside of the fork blade, into the steerer tube and out a spacer notch.
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Old 06-11-13, 01:44 PM
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i dont know whatthe original cateye mity 3 mount looks like
but if it has a relatively flat bottom
would you not be able to dril tiny countersunk holes in the mount
and mating holes in the stem cal
and use flathead self tapping screws to hold the things together?
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Old 06-11-13, 01:59 PM
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Originally Posted by Wilfred Laurier
i dont know whatthe original cateye mity 3 mount looks like
but if it has a relatively flat bottom
would you not be able to dril tiny countersunk holes in the mount
and mating holes in the stem cal
and use flathead self tapping screws to hold the things together?
That's along the lines of one idea I was thinking, the trick is to find screws/bolts and drill holes such that they can be flush, because if they're pushing up the back of the 'puter, it might push it away from one or both of the electrical connections.

Maybe also just zipties, dremel or route a groove for the zipties to lay flush in.

Maybe also glue the whole mount onto a 1/4" square of wood/plastic, drill appropriately so existing cap-head bolt can lie flush or under. Maybe a little grinding involved here.

Fortunately, I have a broken mount to experiment with!
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Old 06-12-13, 05:45 PM
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Once again, SB had the idea before me:



Can't exactly see how he did it, except maybe to glue onto the cap. There is still a wire wound up the brake cable tho.

OOPX, just realized trying to go through the steerer, I gotta worry about the starfangled nut. I'd have to cut the wire, thread it through, and splice it back.
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Last edited by RubeRad; 06-12-13 at 06:00 PM.
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