You are reading a single comment by @mattty and its replies.
Click here to read the full conversation.
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.
@mattty
looks good, but how does it perform re. battery life? If it's continuously transmitting data, wouldn't that sap the iphone's batt pretty quickly?