I love my Cateye Volt's.


For the front, I have been alternating between the Volt 300, 800 & 1600 and for the rear, the Volt 50.


Clearly a Volt 300 would be all you would need and I can not say enough good things about the Volt 50 as a rear light.


For the Volt 50, I do though use the kind of mount that would ordinarily be used for the handlebars and have it on my rack.


It would also work very well as a helmet mounted rear light if you buy Cateye's helmet strap.