As a heavier rider (over 100kg), i find the benefits of this system great as the inner tyre locks the outer tyre against the rim and prevents tyre roll for me enabling lower pressures than just a pure tubeless setup.
Anyway, all sizes on offer with cyclesurgery code: COMP20
Nice one.
decent price reduction, but i found that to be ridiculously unreliable. The inner tubes punctured all the time by tearing (effectively the sealant glued them to the inner tyre thing) or ripping out the valves. and the valves gummed up something chronic.
things like Rimpact are the same price and far FAR better in my opinion.
Pro Core in my opinion works best with non latex sealant like the oko stuff.
Valves don't clog and the tubes don't tear.
Will admit it can be a pain in the arse with Stan's.
