Funny you bring this up.

I wanted to try this

I have a very reliable Quarq, very reliable powertap, very reliable computrainer and 2 identical rear deraillers one with CS pulleys, the other stock.

I have a chain quick release

So I planned to

a) program a ERG workout, something like steps of 5minutes, adding 10watts every 2 minutes, go from sa 150 to 300, 15 steps, 2 minutes each
b) record CT, PT on rear wheel and Quarq on crank
c) remove chain, swap derailleur, put back chain

Probably do this on different rear cogs, say every 2

Better ideas ?

That would be awesome and exactly what I would like to see done.

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I will publish a report and Ceramic Speed will buy me :-)

But what cadence and crank length? #aichtwoohfun

Yes this was thoroughly tested with independent testing by Friction Facts. Unfortunately for consumers their were acquired by Ceramic Speed and it looks like the website no longer exists.

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I've had some ufo chains, but decided to give the premier bike ones a go.

Part of that was due to the optimization process that premier use, the rest was a growing unease with ceramic speed.

I'm also interested as I was looking at the Premier chain and the Ice Friction. I'd be interested if it was worth the $$ to have a specialized "race chain" or simply have a 2nd of the same I train on.

You really should not think of our chain as a race day chain. You should use it every day and just continue to add wax based lube.

By physically reducing the friction on the surfaces - the chain will keep its properties for a long time. Ours is not just a coating that wears off.

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Dan Kennison

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Ditto what Dan said. I went with his chains for all my bikes as everyday and race chains. So clean and so nice. On a $/mile basis, they are not expensive for the benefits.

Thanks for the information! I was not aware of the fact that it would stand up to everyday use. Most of the chains I've seen tend to have a time limit. Now I kick myself for not finalizing that Black Friday purchase!

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Gary Geiger
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I personally have a race and a training chain. I buy a new chain generally Shimano chain and put a few hundred km's on it in dry conditions, put it in an ultrasonic bath with citrus degreaser and lube it with wax. I race on it all season and put my training chain back on between races. At the end of the season my race chain becomes my training chain, break in another new race chain and repeat.

Full thread on the subject just stopped 2 weeks ago...

https://forum.slowtwitch.com/...ic%20pulley#p6792263

That would be interesting. You would have to do a number of repeats, though - I personally wouldn't trust you could find single digit watt differences with less than a handful or two of repeats with those powermeters.

Also, when you say CS pulleys I take it you mean OSPW? If it's just their standard size pulley wheels I don't think there's a snowball's chance in hell you're going to tease out a <1W difference.

Well I don't know that you need to make it that involved. I roller test tires using just a powertap and a set of rollers. I get really repeatable A-B test results just hopping on and riding each tire for 2 to 3 minutes holding a constant speed (24 mph is what I use. I test on a rest day and it only takes about 130 watts to hold on the rollers. Maybe it should be called "rest and test day").I just started I have screen on my Garmin with 3 second and average lap speed.

For a first try I would just choose a single gear and ride that for 3-4 minutes at a constant speed and cadence. The amount of chain has to bend to travel around the gear varies by gear and there could be difference in friction if you chose different gears.

The one thing that does make a difference is making sure the tires are up to their operation temperature. You can see the wattage drop on the ride graph as the tire warms up until it reaches an equilibrium point for my chosen speed. There could/ should be a breakin period with a chain, especially if it is newly waxed. Same goes for the lube in the jockey wheels. You might want to go 10-15 minutes as a breakin with each setup to make sure each has stabilized.