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forum
D Seat post rear light
ive just bought a giant defy which has their D fuse seat post. I've no idea if this is any more effective than a regular seat post but one downside i have encountered is mounting rear lights. I just tried to mount an exposure trace r light and whilst it does wrap around the seat post the mount assumes it will be flush against a spherical seat post which is not the case with the D style post. The light therefore rotates horizontally during the ride which is not good.
Can anyone recommend a rear light (or mount) that will work with a non standard seat post? I'm thinking to use a saddle rail mount but this will mean losing my saddle bag
many thanks
Toby
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6 comments
Photo showing how I adapted the mount ...
IMG_1986.JPG
The sugru tip proved to work well. I used Sugru to fill in the concave mount so it fits flush to my seat post and now it's very stable.
IMG_1985.JPG
I had the same issue and ended up mounting a cateye xx to my seat stay, super bright so I'm not worried about it being a little lower. Also I've no idea why the pic is rotated... New site formatting?
1445452532406809784988.jpg
Thanks for the tip about Sugru, I'm going to give that a go
Sugru is your friend - simply attach and mould to the light of your choice
Check with Giant. I have a Propel which has an aero seat post (think that is different to the D post?) but they have a specific light for it; I am guessing they are clever enough to have something tailored to your seat post. Mine was about 22 quid