You don’t.
My advice is fit those bar-end lights instead, work a treat, and actually very visible, the Cateye one I recommend;
Might get those for tcr.
@skinny started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
You don’t.
My advice is fit those bar-end lights instead, work a treat, and actually very visible, the Cateye one I recommend;