All these valve rim light thingys seem to be schrader - . . . so simply grab an old Presta valve cap (on the left here) . . . .
. . . then fill the schrader bit on the light with some good glue (epoxy if you have any lying around) and stuff the presta cap into the schrader hole bit on the light . . .
let it set . . .
You now have a presta version (here's the one's I did with two part epoxy)
All these valve rim light thingys seem to be schrader - . . . so simply grab an old Presta valve cap (on the left here) . . . .
. . . then fill the schrader bit on the light with some good glue (epoxy if you have any lying around) and stuff the presta cap into the schrader hole bit on the light . . .
let it set . . .
You now have a presta version (here's the one's I did with two part epoxy)