Bad BBC! Their olympic schedules are useless, so I’d missed the Men’s road race by the time I found the right page on their website.
The Women’s road race is 0700-1030 BST tomorrow (Sun 10 August), with the time trials on Wednesday 13 August 0430-1010 BST.
BMX fans (any reading this? I’ve yet to find any) can see the finals up to 0418 BST on Thursday 21 August, while mountain bikes run 0800-1030 BST on Friday 22 (Women) and Saturday 23 (Men).
Events are shown on Eurosport (19e), ARD/ZDF (19e), RTBF-Sat (19e), La 2 (5w), SLO-2 (13e), RAI Due and RAI Sport (13e) and maybe others, but most broadcasters don’t make it easy to find which events are on which channels when (see above flame of the BBC), so good luck!
Update: highlights of Men’s Road Race at 2300 CET tonight (Saturday) on Eurosport (19e).