Which Iphone and what case is it in now ? I'm using a Lifeproof "system" on my Iphone 6 that I put together using my old Lifeproof 4s handlebar mount and a new Lifeproof Iphone 6 belt clip. I can mount the phone on my stem or anywhere on the handlebar in any orientation including facing forward for video. I picked up the 6 belt clip for $25.00 on sale and already had the 4s bar mount but you can find the 4s bar mount for under $10.00 on ebay. Add 10 minutes with a Dremel and one
#6 1/4" screw and you're done.