Hutchinson Serenity

lightweight?!!!
its 1.6kg with the foam insert. pneumatic lightweight tyres are only about 300g.

I've used these for decades and believe this is a huge improvement and hope to try some soon.

The american dealers appear to be gouging- yo u can or could of bought them on wheels for less recently in fact.

The technique I've used in the past is to on carpet or even a pillow to limit the force on the axle use your knees to roll the tire/tube combination on. I asusme the special lever rocks for regular tire use as well.

google shopping is the place to get more dealers registered as currenty the shipping delay if not cost from france is not prohibitive but still ridiculously absurd to gloss over. I assume you can gtet it faster and cheaper htough from the french dealer hen either amazon or where eer the "USA" site is.

THe fatter the air tire is your replacing the lower the pressure required was meaning the more likelyh you'll be happy.

Carbon fiber spokes can further enable this technology further thouhgh if metal ones braking has been a problem.

A triple AAA like club though is probably a saner solution as unless your job penalises tardiness fixing flats is not that biga deal.

IN fact you can use nitrogen in rechargable cans and tubless is actually just a fancy way -perhaps- of embracing 'slime products.

The real issue is how do you 'spend' on extra weight if your not 'just- all muscle yourself or want to ride instead of drive as there are a variety of choices and few brands that even embrace multiple aspects and clearly none that embrace all- for CVT and power assistance and downhill as opposed to grid only charging (braking alone recoveryis not efficient as it's not significant normally and is probably better done with other then elecrical storage).

Todays WSJ reports (above the fold on it's cover)yesterdays MOU as in fact a sell out of the battery company you can buy for a pittance-the one we SHOULD BE BUYING FOR BIKES while we still have a chance.

All we need is a hundred thousand or so people willing to match my purchase and we'll own the company- it's the heart of any successfull competitor to cars. It should be taken private and given a chance to power up the world on safer tires the electrons don't mind helping us pedal as fast as we want with as little pain as we need to suffer to do so.

It's flat's that's preventing so far electrification of bikes and stop us from curing the cancer of urban car infestations. Let's not let Chinese car companies buy the patents for the batteries we need during this delay! A fraction of a billion is nothing!