Hafny mirror experiences?
06-19-21, 04:31 PM
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Hafny mirror experiences?
I bought a bar end mirror by Hafny, to use on my road bike.
Expensive.
When I went to install it today, I was surprised at the small diameter of the 'plug' that goes into the end of the bar.
The bar ID is about 21 mm , the plug will adjust between 16mm and a little more than19 mm before the plastic plug on the end (with captive nut) starts spinning.
Then, I couldn't loosen the bolt either. Luckily the mirror was still so loose that I could just pull it out of the bar.
The plug has two very small grooves that are supposed to engage the split bushing. Once the bushing expands, the grooves don't engage any more and the plug just spins.
Compare the mirror plug to a proper fitting bar-end plug.
Expensive.
When I went to install it today, I was surprised at the small diameter of the 'plug' that goes into the end of the bar.
The bar ID is about 21 mm , the plug will adjust between 16mm and a little more than19 mm before the plastic plug on the end (with captive nut) starts spinning.
Then, I couldn't loosen the bolt either. Luckily the mirror was still so loose that I could just pull it out of the bar.
The plug has two very small grooves that are supposed to engage the split bushing. Once the bushing expands, the grooves don't engage any more and the plug just spins.
Compare the mirror plug to a proper fitting bar-end plug.
06-20-21, 06:16 AM
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Some enthusiastic accessorizers in this thread https://www.bikeforums.net/general-c...nd-mirror.html. Maybe PM some of them?
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06-20-21, 08:41 AM
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If you bought it from Amazon, and it's the one that lists it as fitting " Fits 14.8~23 mm inside diameter", return it. Or, could you put a strip of Gorilla tape on a portion of the plug to take up the slack?
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06-20-21, 10:45 AM
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Thanks for the input. 
I put a shim made from a piece of plastic tubing (split) at the base of the inserted section and it tightened up OK.
But for the $$ charged, I didn't expect to have to do that.
First ride with it this morning - getting it adjusted will take a bit more experimenting. I also need to tighten the tension screw which presses on the ball mount, as the mirror needs to be pretty much locked in place to keep it from moving after bumps in the road.
I put a shim made from a piece of plastic tubing (split) at the base of the inserted section and it tightened up OK.
But for the $$ charged, I didn't expect to have to do that.
First ride with it this morning - getting it adjusted will take a bit more experimenting. I also need to tighten the tension screw which presses on the ball mount, as the mirror needs to be pretty much locked in place to keep it from moving after bumps in the road.
06-20-21, 01:16 PM
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I've bought 3 of different Hafny bar end mirrors over the years. I didn't think $15 was expensive. Maybe you got the one with real glass instead of the stainless steel mirror?
Excellent mirror BTW. Small but doesn't rattle and stays put (until you bump it putting the bike away)
Excellent mirror BTW. Small but doesn't rattle and stays put (until you bump it putting the bike away)
06-20-21, 01:28 PM
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Everything is much more expensive in or shipped to Canada (and CAD vs USD makes things seem more expensive to me).
Yes, my Hafny has glass, and it's the convex model with the teardrop shape.
And, yes, I have to learn to be more careful leaning the bike when I put it away.
It used to just be a matter of taking care of the derailleur - now there's the brake rotor on the other side, and now the mirror too...
Yes, my Hafny has glass, and it's the convex model with the teardrop shape.
And, yes, I have to learn to be more careful leaning the bike when I put it away.
It used to just be a matter of taking care of the derailleur - now there's the brake rotor on the other side, and now the mirror too...
06-21-21, 06:54 AM
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You are missing the shim included by Hafny in the package. I know this because I swapped a Hafney mirror to my wife's new road bike and it wouldn't tighten. I googled the instructions and saw with shim was supposed to be fitted. When I looked in the bar of her old bike, the shim had stuck inside when I removed the mirror.
06-21-21, 09:17 AM
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You are missing the shim included by Hafny in the package. I know this because I swapped a Hafney mirror to my wife's new road bike and it wouldn't tighten. I googled the instructions and saw with shim was supposed to be fitted. When I looked in the bar of her old bike, the shim had stuck inside when I removed the mirror.
There wasn't a shim included, and it wasn't mentioned in the instructions on the card.
As soon as I got ready to install the mirror, I thought:"This will never expand enough to fit the bar". So there definitely wasn't a shim on the mirror.
06-21-21, 09:52 AM
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VicBC_Biker I would contact Hafny (I think I purchased thru Amazon and there should be info there) and I'm sure they'll send you a shim. The installation videos for your model and it will show what your package was missing.
06-21-21, 10:05 AM
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VicBC_Biker I would contact Hafny (I think I purchased thru Amazon and there should be info there) and I'm sure they'll send you a shim. The installation videos for your model and it will show what your package was missing.
I appreciate the video link and sugestions.
My mirror is a different model (FR06) which is a litle bit different than the ones in the video.
I left a message at the Hafny website, suggesting they check out this discussion.
Since I figured out a DIY solution, I don't need to wait for a shim from Hafny in Taiwan.
However, it's a poor situation. Not everybody has a workshop with a large collection of 'this might come in handy some day' stuff.
For me, it was a matter of 10 minutes to fix the problem. For somebody without a shop, it would be a major hassle.
06-21-21, 10:17 AM
#11
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Hafny has a couple of different arrangements for how their mounts expand inside bars.
One of those arrangements is what VicBC_Biker shows in the picture posted in this thread, where the expanding part is a shell with a single gap running down its length.
Another arrangement has a 2-piece split assembly (held together by a pair of o-rings) that sits between the end pieces. That kind comes with a "spacer", as they call it, to use with larger-ID bars.
Here's a picture from their web site showing the second type:
I have two different Hafny mirrors, so I have seen both of these variations in person.
One of those arrangements is what VicBC_Biker shows in the picture posted in this thread, where the expanding part is a shell with a single gap running down its length.
Another arrangement has a 2-piece split assembly (held together by a pair of o-rings) that sits between the end pieces. That kind comes with a "spacer", as they call it, to use with larger-ID bars.
Here's a picture from their web site showing the second type:
I have two different Hafny mirrors, so I have seen both of these variations in person.
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06-21-21, 10:34 AM
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Follow-up:
Corrine Li at Hafny sent me an email within a few minutes of my filling out the contact form at their website. So that's positive.
Not as good as recalling all the defective product that was advertised to fit road bars, but won't...but it is something.
The 30 year old bar end plugs from my parts box fit the new alloy FSA bars perfectly, so it's a bit strange for a manufacturer to claim ignorance of the sizing.
I think many high-end bikes and bike parts come from Taiwan, so there should have been lots of bars available for making sure their product fit.
Corrine Li at Hafny sent me an email within a few minutes of my filling out the contact form at their website. So that's positive.
Thanks for reaching out.
Our old expansion is designed to fit 16~21mm inside the diameter of the handlebar.
After that, we found out that the diameter of the road bike is normally larger than the others.
Therefore, we started adding an additional spacer at the beginning of this year.
Could you please send a picture of what you have received?
Also, please provide your shipping address, and phone number for shipping purposes.
If there is a missing part with your order, I will arrange the shipment as soon as possible.
Sorry for the inconvenience.
Best regards,
Corrine
Our old expansion is designed to fit 16~21mm inside the diameter of the handlebar.
After that, we found out that the diameter of the road bike is normally larger than the others.
Therefore, we started adding an additional spacer at the beginning of this year.
Could you please send a picture of what you have received?
Also, please provide your shipping address, and phone number for shipping purposes.
If there is a missing part with your order, I will arrange the shipment as soon as possible.
Sorry for the inconvenience.
Best regards,
Corrine
The 30 year old bar end plugs from my parts box fit the new alloy FSA bars perfectly, so it's a bit strange for a manufacturer to claim ignorance of the sizing.
I think many high-end bikes and bike parts come from Taiwan, so there should have been lots of bars available for making sure their product fit.
Last edited by VicBC_Biker; 06-21-21 at 10:38 AM.
06-21-21, 12:04 PM
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New email from Corinne:
Thanks for the information.
I read the comments on the forum, and noticed that the bolt at the end is most likely to be threaded. This is why the expansion keeps spinning, and can't be expanded.
Just want to clarify the old expansion and the new expansion parts.
My team and I ran a few tests on an Union Drop bar, Scott road bike, and Giant road bike. We didn't need to use the spacer to install the mirror, and it fits securely.
After we started selling this model, we found out that around 10% of customers think the expansion is too small for them. This is why we started adding the expansion.
We also have an auto email sending out to the customers if they would like to request the spacer without any cost, depending on your communication setting on the Amazon.
All of our products have a one year warranty, and we are very happy to take care of it.
I will send you the expansion replacement, and it is expected to arrive within 5~7 business days.
Let me know if you have any questions, and sorry for the inconvenience.
Best,
Corrine
I read the comments on the forum, and noticed that the bolt at the end is most likely to be threaded. This is why the expansion keeps spinning, and can't be expanded.
Just want to clarify the old expansion and the new expansion parts.
My team and I ran a few tests on an Union Drop bar, Scott road bike, and Giant road bike. We didn't need to use the spacer to install the mirror, and it fits securely.
After we started selling this model, we found out that around 10% of customers think the expansion is too small for them. This is why we started adding the expansion.
We also have an auto email sending out to the customers if they would like to request the spacer without any cost, depending on your communication setting on the Amazon.
All of our products have a one year warranty, and we are very happy to take care of it.
I will send you the expansion replacement, and it is expected to arrive within 5~7 business days.
Let me know if you have any questions, and sorry for the inconvenience.
Best,
Corrine
06-21-21, 12:11 PM
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This sentence has me perplexed:
**********
The plastic 'plug' at the end has a recess with a stainless nut.
Tightening the hex-head machine screw tends to turn that plastic plug. To prevent it from spinning, Hafny have molded a couple of shallow 'V' indents into the plug- these engage the sides of the split tube. Once the plug has been pulled toward the end, the split tube expands and no longer engages those shallow 'V' indents. Then the plug (with its recessed nut) is free to spin - in both directions. So it's not possible to tighten the machine screw or to loosen it.
The mirror is in the bike now so I can't provide more pictures, but one of the pics I have may show enough to make this clear:
I read the comments on the forum, and noticed that the bolt at the end is most likely to be threaded. This is why the expansion keeps spinning, and can't be expanded.
The plastic 'plug' at the end has a recess with a stainless nut.
Tightening the hex-head machine screw tends to turn that plastic plug. To prevent it from spinning, Hafny have molded a couple of shallow 'V' indents into the plug- these engage the sides of the split tube. Once the plug has been pulled toward the end, the split tube expands and no longer engages those shallow 'V' indents. Then the plug (with its recessed nut) is free to spin - in both directions. So it's not possible to tighten the machine screw or to loosen it.
The mirror is in the bike now so I can't provide more pictures, but one of the pics I have may show enough to make this clear:
06-22-21, 04:09 PM
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A new plug assembly came through the mail slot today, from the Hafny distributor (?) in Vancouver.
I tried it on a spare set of bars and it fits.
So that's definitely an A+ for Hafny customer service.
I tried it on a spare set of bars and it fits.
So that's definitely an A+ for Hafny customer service.
