Rear light for aero seat tube

Bandelero
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Rear light for aero seat tube

Postby Bandelero » Sun Jan 18, 2015 4:53 pm

Hey

I just got a Specialized Venge and my old rear light dosent wrap round anymore.

Any suggestions for a suitable light??

Prefer USB rechargeable.


Thanks

danny the boy
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Re: Rear light for aero seat tube

Postby danny the boy » Sun Jan 18, 2015 5:00 pm

http://www.this link is broken/Moon-GEM-3- ... Tail-Light

These fit on a TCR aero post fine, dont use the saddle bag clip they just fall off.

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Duck!
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Re: Rear light for aero seat tube

Postby Duck! » Sun Jan 18, 2015 6:16 pm

Ask your friendly Spesh dealer, they might have some brackets from legally-required reflectors kicking around to suit that post. You may then be able to mount the base part of the light bracket to that. Some creativity may be needed, as the two parts of the assemblies do not always match.
I had a thought, but it got run over as it crossed my mind.

vosadrian
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Re: Rear light for aero seat tube

Postby vosadrian » Mon Jan 19, 2015 11:32 am

I have a Venge. I use a saddle pack with a light clipped onto the pack. I have two saddle packs (both connect to same quick release clip on saddle in seconds). One is my long ride/night ride pack. It is larger for 2-3 tubes +CO2 and has the light. The other is small and light with one tube + CO2 and has no light and I use that for most riding with that bike (daylight in bunches with lots of other people all lit up!!)

Jesmol
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Re: Rear light for aero seat tube

Postby Jesmol » Mon Jan 19, 2015 11:38 am


dalai47
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Re: Rear light for aero seat tube

Postby dalai47 » Mon Jan 19, 2015 11:48 am

Given the latest rule change where we need to have a rear light on racing in Vic, I have been looking for a rear light for my TT bike with aero seatpost.

Options I am considering include the Giant light Jesmol linked. Also considering the iLUMENOX SLASH SS - L327R USB Light Red Light, Cateye Rapid X TL-LD700-R and MOON Comet USB Rechargeable 35 Lumens Red Rear Flashing Bike...

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JdM
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Re: Rear light for aero seat tube

Postby JdM » Mon Jan 19, 2015 11:51 am

I'm using this at the moment on my Giant TCR (has an aero seat post):
http://www.bikebug.com/infini-lava-rech ... 20311.html" onclick="window.open(this.href);return false;

Quite a robust band which stretches around nicely. Very confident it will stay put and not detach itself or break. I'm told by people behind me it is suitably bright :D

I also have a Cateye Rapid, which was great until the elastic band snapped after a few weeks of use. Thankfully it snapped while my bike was inside, so I found the light simply sitting on the floor. Am currently investigating some other more reliable options to attach it to my seat post.
2014 Giant TCR Advanced 1

earlybird
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Re: Rear light for aero seat tube

Postby earlybird » Mon Jan 19, 2015 1:31 pm

Both my Giant TCR and Trek Speed Concept have aero seat posts, so I use my Fly6.

mikaelkn
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Re: Rear light for aero seat tube

Postby mikaelkn » Tue Jan 20, 2015 4:05 pm

Moon Comet rear comes with plastic brackets that you can attach to the saddle's rails. Might be an alternative to the wraps which also comes with this light.

http://www.this link is broken.au/moon-comet-rear-light/" onclick="window.open(this.href);return false;

r2160
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Re: Rear light for aero seat tube

Postby r2160 » Tue Jan 20, 2015 6:49 pm

I went about this a different way. I went to Bunnings and bought some putty:

http://www.bunnings.com.au/selleys-110g ... -_p1235266" onclick="window.open(this.href);return false;

I wrapped my aero seatpost in cling wrap and after mixing the putty, I pushed it against the aero seatpost and let it harden. I then sanded the back and side of the "adapter" I made to resemble a normal seatpost.

Once I finished that, I put a thin smear of sealant on the outside of the new "seatpost" and then clamp my new light

http://www.thebikebarn.com.au/rechargea ... -tail.html" onclick="window.open(this.href);return false;.

It sits perfectly, and doesnt move

cheers
Glenn
-----------
"Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever" Lance Armstrong

warthog1
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Re: Rear light for aero seat tube

Postby warthog1 » Tue Jan 20, 2015 7:13 pm

I have the moon light for my S5.
The serfas thunderbolt is better as it has 2 straps. Still bright and a good runtime. With the 2 straps it is less apt to twist to the side than the moon light.
https://www.serfas.com/products/view/669/
Dogs are the best people :wink:

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fingy
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Re: Rear light for aero seat tube

Postby fingy » Tue Jan 20, 2015 8:23 pm

I was using a Cateye rapid 1 usb charge with a fizik ICS clip on a TCR
which has an aero post, TCR's came with ICS fizik saddles.
Image
Image

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rifraf
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Re: Rear light for aero seat tube

Postby rifraf » Tue Jan 20, 2015 10:48 pm

Bandelero wrote:Hey

I just got a Specialized Venge and my old rear light dosent wrap round anymore.

Any suggestions for a suitable light??

Prefer USB rechargeable.


Thanks
I think this falls under your remit of USB chargeable
http://cyclingtips.com.au/2014/03/fly6- ... ht-review/" onclick="window.open(this.href);return false;
albeit a little dearer than you were probably thinking.
I'm looking at getting one or similar and think they make a lot of sense

Gimme a little time and I'll find the link that mentions it working on an aero seat-post

Whoop :oops:
Actually within the linked page there is mention:

"The Fly6 is supplied with two seatpost mounting brackets so the device can be shared between a pair of bikes (or friends). Two rubber straps are used to attach the bracket to the seatpost and alignment spacers are provided (5° and 10°) for fine-tuning the camera angle. In total, there are two pairs of short mounting straps, one pair of long straps, two 5° spacers, two 10° spacers, plus one adaptor for aero seat posts."

A pic in this one:
http://www.techly.com.au/2014/04/30/fly ... ail-light/" onclick="window.open(this.href);return false;
Mentioned:
"I was worried the camera wouldn’t fit on my road bike’s aero seatpost, but the manufacturers are way ahead of me and included a rubber spacer for exactly this purpose."

Fellow forum member Andrew has a review with pics of what I think may be the original version on his Aushiker site:
http://aushiker.com/fly6/" onclick="window.open(this.href);return false;

Good grief, theres even a review on this site:
http://www.bicycles.net.au/2014/02/fly6 ... ty-camera/" onclick="window.open(this.href);return false;
Surly Ogre, Extrawheel trailer.

Jesmol
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Re: Rear light for aero seat tube

Postby Jesmol » Sat Jan 24, 2015 4:30 pm

If you're still looking, my defy frame is now cactus, replacement will most likely not have an aero post, so may have a numen for sale soon

Bandelero
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Re: Rear light for aero seat tube

Postby Bandelero » Sun Jan 25, 2015 8:54 pm

Thanks to all for your suggestions. I have an aero Giant light on order - see how it goes.

defy1
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Re: Rear light for aero seat tube

Postby defy1 » Sun Jan 25, 2015 9:35 pm

Duck! wrote:Ask your friendly Spesh dealer, they might have some brackets from legally-required reflectors kicking around to suit that post. You may then be able to mount the base part of the light bracket to that. Some creativity may be needed, as the two parts of the assemblies do not always match.
+1 that what i did with my TCR

Rambo
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Re: Rear light for aero seat tube

Postby Rambo » Mon Jan 26, 2015 8:35 pm

+1 for the giant Image

Dr_Mutley
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Re: Rear light for aero seat tube

Postby Dr_Mutley » Thu Jan 29, 2015 11:25 pm

Giant numen fits good but u wouldn't want to trust your life on it... I bought one and they are dull as... So if anyone wants it let me know...

The way I got around this for my S5 aero seat post was to buy a $3 chinese light from eBay, the ones with the long band and thumb screw, fitted to post fine with minimal modification, then used a decent light in the bracket..

I scrapped using it tho after buying a NiteFlux RZ8, which I just attach to my helmet with a couple of garmin rubber bands when I need it... He'll bright, and nothing ugly on my bike....

Dirty32
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Re: Rear light for aero seat tube

Postby Dirty32 » Fri Jan 30, 2015 11:54 am

Dr_Mutley wrote:Giant numen fits good but u wouldn't want to trust your life on it... I bought one and they are dull as... So if anyone wants it let me know...
What's the deal? For sale, or giving it away?
How old / condition etc.

Could be keen.
Cheers!

Dr_Mutley
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Re: Rear light for aero seat tube

Postby Dr_Mutley » Fri Jan 30, 2015 3:32 pm

To give away to good home... I'll never use it... Condition? Used once... Thrown in bike parts/junk box so likely to be a little dirty! PM me your addy and I'll tryn find it, and it's yours [emoji106]

Dirty32
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Re: Rear light for aero seat tube

Postby Dirty32 » Fri Jan 30, 2015 4:45 pm

Sure thing, will do...
Thanks you!

I'll have to pay something else forward, of mine that is currently unused.

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mitchy_
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Re: Rear light for aero seat tube

Postby mitchy_ » Fri Jan 30, 2015 4:48 pm

Dirty32 wrote:Sure thing, will do...
Thanks you!

I'll have to pay something else forward, of mine that is currently unused.
i'll take the Propel. :lol:

Dirty32
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Re: Rear light for aero seat tube

Postby Dirty32 » Fri Jan 30, 2015 4:55 pm

Hahahaha... I bet you will!
1, its currently being used. 2, post might be a bit of an issue!

Sorry to disappoint...

I actually gave a set of perfectly useable / sellable pedals and cleats to a new road rider a week or 2 back.
Maybe I am just getting some good karma back my way!

li2099
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Re: Rear light for aero seat tube

Postby li2099 » Fri Jan 30, 2015 6:11 pm

Well got the Fly6 yesterday and fitted it to my TCR's aero post.
It sure works bright enough.

dbf
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Re: Rear light for aero seat tube

Postby dbf » Mon Feb 02, 2015 3:10 pm

Cateye Rapid X.

For use with aero seat tubes with a sharper trailing edge (e.g. Cervelo), I did the following:
1. get yourself a piece of 4-5mm thick rubber sheet and cut-out a rectangular section around 40mm long x 10mm wide.
2. cut a 4mm wide x 2mm deep groove down the centre of the rectangular section
3. slip the piece in between the light and seatpost (using the groove as a locater) and away you go.

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