Join Date: Jun 2010
Location: NW,Oregon Coast
I suppose you are asking about battery only lights , lots of those have seat post mounts ,
the latest Cat eye, that 570, is easy to remove Which is good/bad, depending on whether you remember to take it off,
or someone else does, if you forget. the QR fitting is square ,
and so the light can fit vertical or horizontal ..
my conversion was to Dyno hubs ..
B&M Toplight Line Plus is what My last 2 purchases were , the fresnel lens over the 2 LEDs have
a bright red line lit, and also have the rest of the reflector surface lit Up.
it is wired to the headlight, and the headlight to the Dyno hub. there is also a brake light version .
the dyno power pulse's frequencies, slow down and the light gets brighter.
but they both have a stand light Capacitor.
The 4D senso Plus , if in senso Mode comes on when you start moving, and stays on when you stop,
but it relies on 2 AA batteries to stay on then , shuts off by itself when stopped for a couple_5 minutes
but the dynamo powers it in what was the off switch position , on its battery only 4D senso, predecessor
on My Brompton, I have a Bontrager blinky battery light on the top of the seat post, and the line + at the bottom
where the reflector was..
upfront the dynamo light is under the frontbag , and a superflash Up on the (M) handlebar.
Last edited by fietsbob; 10-01-13 at 10:49 AM.