Interesting idea. Because c.t is a routing and navigation app, rather than a ride-recording app, it hadn’t occurred to me that there might be a connection. But then I confess I don’t really know the health/fitness side of the iPhone. What would it be useful to do?

My tuppenceworth would be to stay away from it.

Depending on the degree of data required (and most of it is so general as to be pretty unspecific and not terribly useful) it would add a huge degree of complexity to CT. 

CT is a planner, an excellent planner, and I'd rather see it as a master of that than a Jack of all trades. I love how it has developed over time, is still developing and how people here get to interact with the developer and I'd hate to see those things diffused by heading off in different directions.

Too many of the other planners are either trying to do too many things or too complicated to use.

There are apps specific to tracking health and performance data.

Besides, as an Android user, my selfish side says the i-People have enough to be going on with :-) (And that is absolutely not meant to apply any pressure)

As an iOS user, my 2¢ is the same as HobbesOnTour. 

Users who want to record an 'outdoor cycling workout' always have the option to initiate it manually. (The Apple Watch has gotten quite good at inferring that one is cycling and offers to start the workout.)

Agree with the point about Apple Watch - super convinient thing for tasks like this