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Bontrager Flare Round Mounting Kit

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Bontrager Flare Round Mounting Kit

Old 05-14-22, 09:33 AM
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taylorgeo
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Bontrager Flare Round Mounting Kit

This kit comes with ribbed and smooth rubber strap adapters for BOTH bases. Does it matter which rubber adapter I use for mounting to my seatpost?


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Old 05-14-22, 09:44 AM
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The ribbed one is for her pleasure
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Old 05-14-22, 09:59 AM
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Is the ribbed one a smaller diameter inside than the other? Looks smaller in the picture.

Maybe intended for mounting on seat stays or a very small diameter seat post. As long as one isn't too tight or too loose then it probably doesn't matter.


Product details

  1. Replacement or extra mounts for all Bontrager Flare rear lights
  2. Use to mount Flare lights to seatposts, racks, seatstays, or any other spot
  3. Kit includes Flare light mount, two bases, and rubber strap adapters
https://www.trekbikes.com/us/en_US/e...g-kit/p/21488/

Last edited by Iride01; 05-14-22 at 10:03 AM.
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Old 05-14-22, 10:02 AM
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Rolla
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It doesn't "matter" per se, but you'll probably get a better, more uniform clamping force using the gasket that was designed for the seatpost mount, rather than the one for the seatstay mount.
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Old 05-14-22, 10:17 AM
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Originally Posted by CrimsonEclipse View Post
The ribbed one is for her pleasure
Stole my line.
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Old 05-14-22, 10:18 AM
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I'd use the one that fits.
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Old 05-14-22, 10:41 AM
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Originally Posted by Iride01 View Post
Is the ribbed one a smaller diameter inside than the other? Looks smaller in the picture.

Maybe intended for mounting on seat stays or a very small diameter seat post. As long as one isn't too tight or too loose then it probably doesn't matter.
The larger base has a smooth AND ribbed as well, same diameter. Actually, looks like the ribbed is thicker.

Last edited by taylorgeo; 05-14-22 at 10:45 AM.
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Old 05-14-22, 10:44 AM
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taylorgeo
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Originally Posted by Rolla View Post
It doesn't "matter" per se, but you'll probably get a better, more uniform clamping force using the gasket that was designed for the seatpost mount, rather than the one for the seatstay mount.
The seatpost mount has a smooth and ribbed as well. Can't see it in the pic. Just wondering what is the benefit of using the ribbed gasket?
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Old 05-14-22, 10:50 AM
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Originally Posted by taylorgeo View Post
The seatpost mount has a smooth and ribbed as well. Can't see it in the pic. Just wondering what is the benefit of using the ribbed gasket?
Ah, my apologies for misunderstanding your question.

Conceivably the ribbed one it offers more grip, although I don't think there's much difference in practice; IMO, it's more about the length and thickness than the texture.
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Old 05-14-22, 10:50 AM
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Well just try one and go ride.

If you find that the mount gets crooked from vibrations during your ride and you feel it was tight enough, then try the other. Maybe one works best on certain materials, CF, steel, aluminum, painted surfaces with different finishes and etc.

If they gave you more than one rubber strap for the a clamp, then are you certain one isn't to allow for a smaller or wider diameter? Seat posts come in different diameters. I'd tend to think the ribbed was for smaller diameters, but failing no information from Bontrager, anything is a guess. An email to their tech support might get you more than a guess.

Some of the out front mounts that I've used for putting my GPS on my handlebars had several rubber inserts that fit inside each other so you can add or remove them to get the proper size opening to allow the clamp to hold on the handlebar.

Last edited by Iride01; 05-14-22 at 10:55 AM.
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Old 05-14-22, 10:55 AM
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Originally Posted by Rolla View Post
Ah, my apologies for misunderstanding your question.

Conceivably the ribbed one it offers more grip, although I don't think there's much difference in practice; IMO, it's more about the length and thickness than the texture.
No worries, thanks for your thoughts. Happy riding!
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Old 05-14-22, 10:56 AM
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taylorgeo
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Originally Posted by Iride01 View Post
Well just try one and go ride.

If you find that the mount gets crooked from vibrations during your ride and you feel it was tight enough, then try the other. Maybe one works best on certain materials, CF, steel, aluminum, painted surfaces with different finishes and etc.

If they gave you more than one rubber strap for the a clamp, then are you certain one isn't to allow for a smaller or wider diameter? Seat posts come in different diameters. I'd tend to think the ribbed was for smaller diameters, but failing no information from Bontrager, anything is a guess. An email to their tech support might get you more than a guess.

Some of the out front mounts that I've used for putting my GPS on my handlebars had several rubber inserts that fit inside each other so you can add or remove them to get the proper size opening to allow the clamp to hold on the handlebar.
Will do. Thanks for the suggestions. Really appreciate it!
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Old 05-14-22, 04:16 PM
  #13  
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I really like these little flare lights, but the mount is horrible. The locking point for the light gets very loose and you can lose your light. My wife lost the tail light when she rode over a train track cross point and we could not get it to stay locked in when I got a replacement. Called Trek they sent me a replacement, but it seemed to have the same lose fit. I eventually got a mount that was 3D printed and it was so much more secure, damn pricey, but the light is not cheap, so it was worth it to me. The items I bought mount to the bottom of the Bontrager saddle.

This one allows both the tail light and the Garmin Varia. Worked for me as I run a fairly minimal seat bag as I am running tubless, so I dont need to haul a lot of stuff,
https://www.shapeways.com/product/6E...li=marketplace

And I got this for my wife's bike, this also will allow a gopro on the back if you wanted.
https://www.shapeways.com/product/DE...li=marketplace

This place has a lot of Bontrager specific 3d printed items.

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Old 05-14-22, 04:22 PM
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Originally Posted by jaxgtr View Post
I really like these little flare lights, but the mount is horrible. The locking point for the light gets very loose and you can lose your light.
Interesting. I've been running a Bont tail light like this for about four years, and haven't had any problems. I wonder if there are different mounts?
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Old 05-14-22, 05:08 PM
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Originally Posted by Koyote View Post
Interesting. I've been running a Bont tail light like this for about four years, and haven't had any problems. I wonder if there are different mounts?
Yep I would agree, I had some older mount points and never had this issue. This issue for me, seems to just be on the more current versions, especially on the seat mounting points. There is a small ridge that locks the light into place, and from what I could decipher is that over time as you pull the light off the mount, it seems to round the edge reducing the locking tightness. I sent the one I lost the light on back to Trek to look at.
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Last edited by jaxgtr; 05-14-22 at 05:13 PM.
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Old 05-16-22, 12:44 PM
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Originally Posted by jaxgtr View Post
Yep I would agree, I had some older mount points and never had this issue. This issue for me, seems to just be on the more current versions, especially on the seat mounting points. There is a small ridge that locks the light into place, and from what I could decipher is that over time as you pull the light off the mount, it seems to round the edge reducing the locking tightness. I sent the one I lost the light on back to Trek to look at.
Interesting as my seat mount that clips into the Trek seat post ....mast ...whatever they call it ...is tight and rock sold. The front mount is getting a little wobbly. I only went that route because I really like the integrated mounts for Bonnie stems and seatposts. Think its very functional and very clean.
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Old 05-17-22, 04:43 PM
  #17  
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These will make your life a whole lot easier:


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Old 05-17-22, 07:37 PM
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Originally Posted by Rdmonster69 View Post
Interesting as my seat mount that clips into the Trek seat post ....mast ...whatever they call it ...is tight and rock sold. The front mount is getting a little wobbly. I only went that route because I really like the integrated mounts for Bonnie stems and seatposts. Think its very functional and very clean.
Yea I have zero issues that this style on my Domane.

The one I have had the most issue with is this one.

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