I’ve got a Cervelo P2C, with an xlab cage thing off the seat, Adamo Road saddle back there. So, I’ve rigged up a rather unreliable rubber band to hold a rear LED super-flash. The rubber band is tied between the two carbon drink cages, and is clipped into the rubber band. The super flash, comes off and is not secure.
The standard seat post device from which the LED rear light attaches is intended for round seat posts, I have found none to be able to go around a seat post like the P2.
I guess what I’m asking is what rear LED red warning light are ya’ll using with an aero post and XLAB cage? What fits around that cage or seat or seat post, to warn traffic behind you, not to KILL YOU.
I confirmed that my two serfas light suggestions fit very nicely and snugly on a p3/2 carbon seat post. You could add just the 3/4 PVC tube to make theme fit even snigger, but I don’t think it is necessary.
Thanks everyone for suggestions. There’s apparently 4 threads on this previously going back several years as well as a DIY out front. I was hoping for something integrated with a deep aero post I will try looping through an o ring
Consider getting the serfas that I suggested. It will work right out of the box, is lighter, rechargeable, and substantially brighter. Put your superflash on your helmet.
As mentioned above- the Serfas can be mounted on a P3/P2 or most any aero seatpost without having to go through the process of cutting PVC and retrofitting an aero post into a round post. It works fine just by itself. I also tried a small cut piece of foam pipe insulation- as sold at any hardware store, and it makes the aero post a bit rounder and even snugger fit.
Also, if you have a decorated Christmas tree hanging off your seatpost/seat- the light can be mounted upside down- towards the brakes and still tilted appropriately towards the eyes of drivers in cars AND/OR it can potentially be mounted where your seatstay becomes one piece above the rear brake. I can mount it there nicely on a size 54cm S3 Cervelo aero road bike.
You can indeed mount the Dinotte on a P2, I just came back from a ride with mine, but instead of attaching it to the seat post, I attached the mount to the frame right above where the rear brake mount is. Mount it “upside down” so the mount points upward, and you are good to go. I have a battery pack one so I attach that to the seat post. I’d take a picture but I am way too lazy to go out and do that right now.
I am a big believer in the Dinotte over the AAA powered lights, at least for daytime riding.
I actually just put a light in my back pocket on my training tri suit that’s white and it blinks through it really really well. I haven’t tried it in a suit that’s not white but polly work
I used to Blackburn fleas. 1i clip to the back of my helmet the other a clip to the back of my jersey that way they’re high enough for everyone to see. They are very small and have a nice strong clip in the back easy to use.
