My current favourite below, It’s varied enough that I can do it without getting bored and although written down it looks a bit complicated I’ve an app on my phone (seconds pro) that I use to take care of the timing and efforts for me.
effort 1-7 based on one gear change, 1 being the easiest and 7 being the hardest.
5 min warmup (effort 1)
30 sec (effort 2) cadence around 70 although it normally starts a little higher and peaks a little lower
30 sec – (change up – effort 3)
30 sec – (change up – effort 4)
30 sec – (change up – effort 5)
30 sec – (change up – effort 6)
30 sec – (change up – effort 7)
30 sec – (change down – effort 6)
30 sec – (change down – effort 5)
30 sec – (change down – effort 4)
30 sec – (change down – effort 3)
30 sec – (change down – effort 2)
2 minute recovery – (effort 1)
30 second sprint – (effort 4, 110-120 rpm)
1 minute recovery – (effort 2)
30 second sprint – (effort 4, 110-120 rpm)
1 minute recovery – (effort 2)
30 second sprint – (effort 4, 110-120 rpm)
1 minute recovery – (effort 2)
30 second sprint – (effort 4, 110-120 rpm)
1 minute recovery – (effort 2)
2 minute recovery – (effort 1)
1 minute – (effort 3-4, >80 rpm)
1 minute recovery – (effort 2)
2 minute – (effort 3-4, >80 rpm)
1 minute recovery – (effort 2)
3 minute – (effort 3-4, >80 rpm)
1 minute recovery – (effort 2)
2 minute – (effort 3-4, >80 rpm)
1 minute recovery (effort 2)
1 minute (effort 3-4, >80 rpm)
5 minute cool down – (effort 1)