Tubes for JK Strozzapreti 25mm tyres?

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berlinonaut

Veteran
Location
Berlin Germany
First, you should be aware that in the test of a-to-b the Strozzapreti was considered a pretty miserable tire and in opposite to what it claims pretty slow. Quote from a2b 123:

the Strozzapretis roll very badly. In fact, never in our experience has anything so sporty looking, performed so poorly. After struggling for a while, standing out of the saddle on every modest gradient, and dripping with sweat, you begin to suspect you might have been conned.These are not tyres for connoisseurs of the finer things, but crudely engineered jobs for traffic-light poseurs.The myth only endures because having paid nearly sixty quid for them, you’ll either go along with the traffic light ‘oohs’ and ‘ahs’, or take them off and hide them quietly in a cupboard at the back of the garage.The poor road impression is backed up by a rolling road resistance figure of no less than 38.2 watts. Double that to allow for a pair of tyres, and we’re talking a significant chunk of your available horse-power.The general impression is of the 1960s-era Raleigh Record fitted to early Moultons and Bromptons.
Secondly, surprisingly on the webpage of Joseph Kuosac it does not show up - maybe an error but also maybe it has vanished from the portfolio. As far as I remember they also had tubes for their tire (seem to be unavailable as well) but I would have no issues using tubolitos or Schwalbes - the tubolitos are specified at "from 1 1/8" (which should be about 28mm) and the Schwalbe 1,1", which is about 28mm as well. You could also use Latex tubes cut to size.
 
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rogerzilla

rogerzilla

Legendary Member
Thanks. These are for a minimum weight Moulton project rather than a Brompton, and there are already some odd component choices, like a coaster hub (it's lighter than a singlespeed hub when you allow for the loss of a brake caliper, lever and cabling). Rolling resistance isn't the main objective!
 
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rogerzilla

rogerzilla

Legendary Member
Fitted with the (nominally 28mm) Schwalbe tubes. They were the tightest fit imaginable and needed a VAR tyre bead jack as well as some special tactics. Folding tyres always loosen up after a couple of weeks' inflation, though.

They seem quite round and look stunning, which is at least half the point. Will see how they ride when the rain finally stops (next week?)
 
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