Went out for a ride today. The intent was to test out what I sensed as (last weekend) something of a performance break-through. So I wanted to ride a couple of shorter routes that I was familiar with and check out pace vs. RPE vs. HR (I don't own a power meter) to verify my sense of things from my longer ride on Sunday.

My 'sensors' are

1) An ancient (and wired) bike computer for speed, avg/max speed, distance, and cadence. I literally bought this thing in the 1990's. But with a whole $3'ish dollars invested in a new battery a while back, it still works.

2) A Polar RS300 HRM.

So I took off for a short warm-up toward the start of the first 'known shortish route'. Shortly after the start of the known route my bike computer was reading ZERO cadence and ZERO speed. Damnation - what the heck.

I rode a while and decided that this could not possibly be a dual sensor failure so it must be that the bike computer was, for some reason, not well seated in its holder so it had lost all sensor connections. So I wiggled things and it came back. I went back to the start of a known route and off I went - another identical failure. CRAP!!

And, as things in this world go, my Polor HRM had started reporting 'no heartrate link found' (even though I had a HR at the start of things). Double CRAP. I finally figured out that the HRM chest sensor had come out of its socket on one end. So I clicked it back in and shortly thereafter I started getting my HR. But I had reset my session a couple of times before that hoping to re-establish a HR connection. So I had lost elasped time information.

Of course by now the bike computer had lost itself again. OK, fine. I have no idea about speed, cadence, distance, but I can get elasped time because I know about when I started. Well, I can't do that either. I am not kidding here. On Tuesday I had (with great trepidation) changed the battery in my Polor RS300 wrist unit (despite Polar insisting that I send it in for that action). I had not paid any attention to this fact but (after the successful battery replacement) the time was WAY off and the date ended up somewhere in 2008. So I had no idea of elasped time either (until I got home).

God help me if I had been riding a bike with Di2 shifting

dave