Nice. Sounds like you got 'em on alright but for others daring to take the plunge, aside the obvious possible allergy thing, they do tend to creep into spaces inside the rim bed. It seems more important than with butyl to make sure that once plopping the last of the tire onto the rim bed during install it's important to do a quick check around the rim and make sure no bit is trying to sneak out from under the tire before fully inflating. Which brand did you get btw (I'm using Vittoria)?
I'm using Vittoria as well. Funny you should mention the creeping thing. I noticed it was significantly more difficult to get everything "in the tire". Fortunately I'm anal about checking around before inflating! It's pretty obvious they are more supple than butyl just by handling them. I'm sure that translates to some extent in the ride it's just hard for me to pick out right now. I've changed a lot of things recently though. I've gone to carbon deep rims, the wider rtire bed, different tires, and now latex. I'm still figuring out pressures, but it will be much lower than the 120 psi I use to typically run.
For the wider rim it is recommended by HED to go with lower pressure (sounds like your rim's manufacturer as well as). More air volume means less pressure is needed. Apparently excess pressure will cause the spokes to decompress, I'm not privy to all the sordid details but it doesn't sound like an ideal scenario. Also possibly less than ideal things happening to the CF rim walls vs typical alloy rim walls as they heat up on a fast decent? I'm currently running 25c Conti 4-Seasons, which while having a sidewall max indicated pressure of 120psi, Conti recommends 100psi for my bodyweight of 160lbs+/-. On my HED C2's its recommended to run lower than 90psi to compensate for the extra width. On paper that seemed way too low but after running some different pressures I've settled on about 85psi for the rear and 80psi for the front give or take. I went a little higher one day and was surprised how harsh the ride was at 90+psi on the rear. 80psi on a 19mm wide rim was entering pinch flat territory, not so on the 23mm wide rim. Even at that low pressure the tires feel responsive, not sluggish as they may have on a narrower rim.
Yeah I know they should be lower, I just haven't dialed it in yet. I'm running Enve 6.7s, and although I can't recall the exact rim widths I know they're wider than normal (and the front is wider than the back). I'm using 23mm tires (my S5 would probably rub with wider ones) and I'm currently running a little over 90psi. I'm a heavier rider though (190 lbs). I've varied between 90 and 100 and still haven't settled into a place that I think is perfect...we'll see. As you mentioned, I've yet to feel them as "sluggish" at all.
I've never ridden anything but aluminum rims. Various ones over the years. I think my favorites were Velomax Circuits (which I still have). I was NOT aware of the latex tubes not being good for downhill stuff, although fortunately for me while my rides are very hilly, there isn't anything extremely long or twisty. (1 mile long or so).
That's certainly worth considering on a ride like the haute route or some other climbing intensive course. I had heard that latex tubes were not available for a short time in this country (not including tubular tire inners). Do you know if that is the case or is it just park bench rumor? Certainly seems like tube failures could be responsible for some sort of embargo, at least until some legal way was found to circumvent.
I haven't heard that, but I do know that butyl tubes have also failed under braking on CF clinchers. I've not seen anything on any other forums about a shortage of latex tubes, well, except for some tubes that just run out of stock.danfoz said:
The S7 stuff is mucho dinero. Colorado Cyclist is running a decent sale on the S5 stuff: http://www.coloradocyclist.com/product/display/90205
Friction?
Increasing gas temperature increases gas pressure when the gas is in an enclosed space (Gay-Lussac's Law i.e. Amontons' Law), but I don't think it works the other way around.
Friction?
