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Every taillight I've owned has mounted to the seat post, but when I load my rear rack the seatpost light is no longer visible. Instead, I'd like to mount a light to the rear of my rack, which has a single centered screw hole for mounting a light. What kinds of lights can I mount with this kind of setup? Are there lights specifically designed to be mounted on the back of a rack with a single screw?

The best picture I can find is below:

Surly Rear Rack

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3 Answers 3

up vote 4 down vote accepted

I recently bought a new rack specifically because my old rack had no good spot to attach a light to. Well, that, and it has a broken weld causing it to rattle. The rack I bought is this one. I got the Bontrager Flare 2, which easily attached to the rack with a single bolt. The light has 3 modes, which are steady, strobe, and random. Random works well if you're riding in a group as the light can be too bright otherwise with all the LEDs on at the same time. Also, check out this Tail Light Review on an amazing site. The chart shows which mounting options are included with the light.

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That's a great web page! I know when I was hunting for a headlight it was impossible to find decent comparisons -- too bad there's apparently not an companion headlight page. –  Daniel R Hicks Aug 29 '12 at 1:19
    
Dang - was going to post a link to my own review, but you beat me to it! That's the easiest solution for sure. –  nhinkle Aug 29 '12 at 18:43
    
Oh, this is funny. I actually wound up buying this light prior to reading this answer. Unfortunately it failed, the screw ripped the metal mount out of the plastic backing on the light. –  meagar Dec 6 '12 at 15:28

Find a bolt that fits the thread and diameter that is about 2" long, then some 1.25" washers, and a 1" diameter PVC x 2" long. Bolting the PVC to my rack gave me plenty of space to use any light I wanted with ease.

I don't have a photo of this, but I have this on two of my racks and love it. I break lights from time to time (mainly in storage or locking up), and the flexibility to use what ever light I need/want has been huge.

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Take the bike and your preferred light to a good hardware store. The guy there should find some sort of angle bracket/whatever that (perhaps with a bit of drilling) will hold the two together.

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Looks like the threaded hole is pass-though. If so, consider attaching things to the inner side, so the light won't be too easy to hit accidentally. –  heltonbiker Aug 28 '12 at 19:23
    
I was looking specifically for light suggestions. I'd rather find a light that fits the rack than try to graft something on after the fact. –  meagar Aug 29 '12 at 0:45
    
I've never had a rear rack light that didn't require some sort of adaptation to make it fit. –  Daniel R Hicks Aug 29 '12 at 1:15

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