Power Spike incorrectly clipping sprints

This is not really a bug but more of an implementation issue. The power spike detection feature is clipping all my sprints because I have a low FTP. I personally think that FTP has no correlation with sprint power, my 5 second power increases when I train it, not when my FTP increases. The current method of detecting power spikes is not effective.

At the default 20% level, my sprints are getting clipped at 200-400 watts. You could take any untrained person of the street and they would easily be able to hit these numbers in a sprint. In one of my past rides, it requires setting a threshold of 106% to not have any clipping in the sprints.

Finally, I have changed the default power spike threshold to 100%, however it only affects rides in the future. I am not sure how to change it so that all my previous rides which were incorrectly altered are fixed. I can go through one by one, but I don’t know where my sprints are in all my old rides.

Hmm. I am going to add an “apply to all activities” checkbox to the /settings value.

This is done now. Go to /settings, edit the power spike threshold and tick the “apply to existing” box at the bottom:

It will take a few minutes to re-analyse everything. There is also a little orange marker on activities that have the power spike threshold set (i.e. that have power spikes clipped or that would have had if you hadn’t edited the threshold):

Also I think your FTP is a bit higher than what you have it at, based on that 11m effort you did recently.

That was quick! Thanks

@david I’m also facing a similar issue. I’ve recently started cycling post-surgery so my FPT is very low (~111w) and as a result my sprint attempt in unscheduled workouts is being clipped significantly. in my last activity, it has been clipped substantially.

Adjust the Spikes setting

Thank you very much. Stupid me was keeping this number at the lowest (10%)… :man_facepalming:
I’ve set it to 80% now. things are looking much !!