You are reading a single comment by @scultura 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.
scultura
Bear with me while I try and describe a perculiar Di2 problem which has just cropped up recently...
Changed my seatpost a couple of weeks ago (obvs requiring disconnecting the battery and reconnecting it). A few days later I go for a ride, but no gears. The battery seems properly connected to the wire inside the seatpost, but I disconnect it and reconnect it anyway using the tool. Yay, gears. Off I ride. A few days later, another ride. No gears again. I disconnect and reconnect the wire going into the battery, and I have gears, but this time the indication light on the junction box is red. I'm sure it was green before. Red but not flashing is alright, isn't it, so off I go, only for the gears to totally stop shifting after 2km. Didn't even chuck me into the little ring. Go home, start charging and after 2 hours or whatever, everything seems fine. Every connection I can get to on the bike seems okay, nothing dodgy. Overnight the battery keeps charge and the indication light is still green, so I go for a ride. All fine. That was yesterday. Now I think "oh I'll check my Di2 again" and... it's dead. WTF is going on? I'm going to need to bung it into a shop, aren't I?