Extremely airtight! The Butyl rubber compound prevents pressure loss and fewer occassions to inflate. Extremely reliable! Quality control for safer cycling: Each tube is checked twice at the factory to ensure safer cycling. Having the correct pressure means fewer punctures and reduced rolling resistance.
Mr ToddWell, it's just an inner tube but it is lightweight and its Schwalbe so it just works! First time customer of Merlin Cycle's and I must say that they were very good - no iffy stock levels and really prompt delivery.
Mr RipperGood inner tube.
Mr HoltGreat quality inner tubes- I never buy any other make.
Mr PreeceExcellent service as usual from Merlin and these tubes are some of the best around for the type of mountain biking we do.
Mr mansfieldGood price, seem to be quite puncture resistant, run these for years with no problems.