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Is this a safe way to add water bottle mounts?

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Is this a safe way to add water bottle mounts?

Old 08-08-22, 11:02 AM
  #26  
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Originally Posted by 79pmooney View Post
My two TiCycles ti frames have three sets each of bottle mount rivnuts. 2008 and 2011. Haven't had a single issue and the bottom, under the DT cage goes on and off for hot and long rides. The Dremel hasn't seen either bike. (I have heard framebuilders say that drilling WB holes is one of the more challenging fits because error is so obvious. I'm guessing most make jigs early on just for this.)
I meant in regards to anyone doing it RJ style - home-brewed. However, I have heard of some cases of loose, factory-installed rivnuts, and - come to think of it - my Birdy BD-1 was one of them. It had a rivnut for a chain keeper that had been ripped off, causing the rivnut to spin around in the frame.

If I had to do this to a frame, I'd add a bit of epoxy to help reinforce the mechanical clamping of the rivnut and its serrations. Cheap insurance.

-Kurt
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Old 08-08-22, 11:03 AM
  #27  
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Originally Posted by 3alarmer View Post
.
...I honestly don't understand the reluctance to mount a bottle cage on the bars ? They seem to work fine.

It's really simple. You are supposed to be drinking at the bar or riding your bike, but not both at the same time. (Says he who hasn't had a HB mount cage in a very long time. Not since my pump came off the DT.)
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Old 08-08-22, 11:14 AM
  #28  
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Originally Posted by cudak888 View Post
I meant in regards to anyone doing it RJ style - home-brewed. However, I have heard of some cases of loose, factory-installed rivnuts, and - come to think of it - my Birdy BD-1 was one of them. It had a rivnut for a chain keeper that had been ripped off, causing the rivnut to spin around in the frame.

If I had to do this to a frame, I'd add a bit of epoxy to help reinforce the mechanical clamping of the rivnut and its serrations. Cheap insurance.

-Kurt
You know. with care, I bet virtually all loose rivnuts could be epoxied and used a long time. Getting the area clean would be a challenge. I'd start a screw after epoxying and also set a thin layer of the mixed epoxy aside so I could seen when it is almost set up hard, then back the screw out at that time. (Prepping the screw threads with wax or soap would be smart.) I would go with JB Weld or Marine Tex. Maybe pretty up the job with a little liquid boat building epoxy and an artist's brush after. (Used to build boats. For some kids it's the sand box. For me it's the gooey stuff.)
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Old 08-08-22, 11:17 AM
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Originally Posted by 79pmooney View Post
You know. with care, I bet virtually all loose rivnuts could be epoxied and used a long time. Getting the area clean would be a challenge. I'd start a screw after epoxying and also set a thin layer of the mixed epoxy aside so I could seen when it is almost set up hard, then back the screw out at that time. (Prepping the screw threads with wax or soap would be smart.) I would go with JB Weld or Marine Tex. Maybe pretty up the job with a little liquid boat building epoxy and an artist's brush after. (Used to build boats. For some kids it's the sand box. For me it's the gooey stuff.)
Better yet, just cut it out, epoxy the area as you describe, and install a fresh, brand-new rivnut.

I dare say the diameter probably matters less than the completeness of the crush between the tubes. That's probably why some of them fail too; the rivet may only crush against the lower crown/curvature of the tube.

-Kurt
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Old 08-08-22, 11:25 AM
  #30  
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Originally Posted by TugaDude View Post
Beauty is in the eye of the beholder.

These look pretty nice. To me.

I would definitely go with these!
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Old 08-08-22, 11:37 AM
  #31  
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There are certainly plenty of bikes I wouldn't drill, but I did add rivnuts to my Grand Sport several years ago, and no problems. I had a chunk of tubing from a trashed frame, so I practiced on that first to get a feel for the crimping.
As far as alignment goes, a simple jig can be made by drilling guide holes in the corner of a piece of angle iron, and clamping that to the bike.
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Old 08-08-22, 11:53 AM
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I've rivnut-ed several of my steel frames and it works great.
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Old 08-08-22, 11:56 AM
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I have and use both the Zephal and Minoura WB mounts with clean SS straps and no fastener on the backside. Both do have black plastic mounts that raise the cage considerably. Pluses - they work well. Put electrical tape on the straps, trim with a sharp box knife and they leave no marks at all. And for seattubes on close racing bikes, nothing sticks back to touch the rear tire.

https://www.modernbike.com/minoura-b...m-black-silver

The Zephal one I have isn't shown on their website so it may be discontinued. There are several other solutions there.
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Old 08-08-22, 12:05 PM
  #34  
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My solution was to drill holes and forcefully thread in two long M5 bolts. I then silver soldered them in place and cut them down to use nuts in securing my water bottle cage... Talk about a HACK... Ha

None of my Franken Bikes are "Wall Hangers"... But they are ridden and PROVEN...

As Quoted by one of our tribe: "Steel Is Real", I would not do this on anything but a steel bike.
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Old 08-08-22, 12:08 PM
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before I knew such a thing as "rivnuts" existed, I decided an old French frame just HAD to include waterbottle mounts, and also chanced upon a basket-case trashed Mtn. Bke frame discarded on the street.
So...with more confidence than sense I cut out the MTB factory mounts, shaped the remaining frame tubing into "diamonds", then drilled the frame tubes in French frame and brazed them on.
It turned out so nicely I was sure I was a natural for brazing and soon discovered the truth: NOT a natural, just had some unnatural good luck, like beginners do.
So, kids, don't try this approach at home!
I would also be a little leery of rivnuts, have had mixed results with them. So maybe do a practice run on a trashed MTB frame, or a piece of one.
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Old 08-08-22, 12:30 PM
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Originally Posted by Chuck M View Post
Tossed that idea around. But my Cannondale bar bag gives me many warm fuzzies.

...where there's a will, there's a way.
.
.
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Old 08-08-22, 12:40 PM
  #37  
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Originally Posted by 3alarmer View Post
...where there's a will, there's a way.
.
I have no valid argument now. Just an idea.
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Old 08-08-22, 02:12 PM
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Originally Posted by smontanaro View Post
These? They look butt ugly to me. Not something I'd care to install on a nice vintage bike. Surely vintage bottle cage clamps are available in decent supply, yes?

They look less ugly than the paint scratches the vintage ones leave. They are also very secure, but to each their own.
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Old 08-08-22, 04:42 PM
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Originally Posted by Classtime View Post
How would you put these on?
I think one leg of the clamp legs is actually hinged at the mount body....
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Old 08-08-22, 06:56 PM
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Originally Posted by 52telecaster View Post
... the paint scratches the vintage clamps leave.
There's an easy solution for most of that; you have to file/sand the edges. You can paint the underside with clear nail polish. I also use tape when mounting them, not under the clamp, but to hold them in place while securing the clamp bolts. My '72 Torpado with the VO Retro cage:


...
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Old 08-08-22, 07:18 PM
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I’ve done many, many frames with rivnuts. Would do them with epoxy.

Loose rivnuts? Smear epoxy in there and re-crimp them

Last edited by miamijim; 08-08-22 at 07:21 PM.
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Old 08-08-22, 08:06 PM
  #42  
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Originally Posted by 79pmooney View Post
I have and use both the Zephal and Minoura WB mounts with clean SS straps and no fastener on the backside. Both do have black plastic mounts that raise the cage considerably. Pluses - they work well. Put electrical tape on the straps, trim with a sharp box knife and they leave no marks at all. And for seattubes on close racing bikes, nothing sticks back to touch the rear tire.

https://www.modernbike.com/minoura-b...m-black-silver

The Zephal one I have isn't shown on their website so it may be discontinued. There are several other solutions there.
this Zephal one is still available .
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Old 08-09-22, 10:14 AM
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Originally Posted by 3alarmer View Post
.
...I honestly don't understand the reluctance to mount a bottle cage on the bars ? They seem to work fine.
Concur.
Beautiful PX-10, by the way.
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Old 08-09-22, 11:03 AM
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Originally Posted by 1simplexnut View Post
this Zephal one is still available .
Wonder why. I think I'd use hose clamps before I used those.
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Old 08-09-22, 05:05 PM
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Originally Posted by smd4 View Post
Wonder why. I think I'd use hose clamps before I used those.
ha ha
Not pretty I agree but certainly less potential damage (and reversable) than the drill option .
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Old 08-09-22, 09:09 PM
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Topeak Versa Bike Mount

Topeak Versa Bike Mount (2 Piece per Set), Black, 20-60mm

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Old 08-10-22, 06:36 AM
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Originally Posted by tacreamer View Post

Topeak Versa Bike Mount

Topeak Versa Bike Mount (2 Piece per Set), Black, 20-60mm


Awesome!
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Old 08-10-22, 07:18 AM
  #48  
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Originally Posted by tacreamer View Post
Topeak Versa Bike Mount (2 Piece per Set), Black, 20-60mm
I yearn for a day when someone manages to bring to market a version of this with a steel core and tightening system.

I've yet to see any of these plastic hose clamp designs that don't eventually slip or strip.

-Kurt
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Old 08-10-22, 07:24 AM
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I’ve used these on several of my bicycles, no problems with slipping or stripping!
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Old 08-10-22, 08:10 AM
  #50  
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Originally Posted by cudak888 View Post
I yearn for a day when someone manages to bring to market a version of this with a steel core and tightening system.

I've yet to see any of these plastic hose clamp designs that don't eventually slip or strip.

-Kurt
They just don't have a vintage look to them either IMHO.
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