I only paid $4 for this TopRider computer mount. When I tried to get the bolts to the proper torque – the aluminum just crushed under the bolt. It's not available on the store any more, but I'm not trusting any of the mounts that bolt on the faceplate of the stem.

I wasn't expecting much and that's what I got. 

I had an alloy one break at the bolt hole while I was riding, nearly causing a crash as the handlebar suddenly came loose. Totally swore off this style of mount for a while but now use an Ali one that’s just a bent sheet of titanium which I’m assuming can’t possibly go wrong…

I’ve been experimenting with a bunch of Ali saddle over the last couple of months - current count is 11, including 3 bare carbon models.

The 56g Ryet was the only one of those that didn’t suit me, with the left to right curve of it not agreeing with me at all. Seems like a totally solid saddle though, and I’d have loved that on my weight weenie bike. The Kocevlo and far flatter Ryet have been good though, and I’m 100% on board with padding being optional and not necessarily beneficial. One thing I found is that the bare carbon is super slick so the seat and my bibs slide past each other without any friction as opposed to the bibs sticking a bit to the saddle and that movement being shifted to between that bibs and my skin.

I don't think the chain needs to be in for long but you do need to shake it a bit to ensure the wax penetrates the rollers etc. Then pull it out and leave it to cool. I'd say that it take a kilometre or two for my chains to loosen completely and roll well. On one bike my chain won't stay on the largest cog on the cassette until it's loosened up so I'd suggest getting the indexing good enough, ride it for five minutes, and then fine tune it.

Yeah, I’ve wondered about this too - as much as it is guessing which side is producing the power, it’s probably a safe assumption that you aren’t creating much power between six and twelve o’clock on either side (i.e. when your foot is moving backwards and up). If you’re pulling up it’ll confuse the sensor but aside from that…

Watts won't tell you anything unless you take cadence into account.