I need to replace the tires on my Birdy. The Marathon Racer on the rear laster a fair while but eventually failed by delamination of the tread from the belt along the mid line. The front tire appears to be headed the same way.

I would prefer to go lighter rather than heavier and it appears that my only current lighter option is the Kojak folding tire.

Its advantages appear to be:
- Slightly lighter (185 g vrs 260 g each)
- Higher load capacity (75 kg vrs 70 kg)
- Faster (smaller cross section and 115 psi vrs 85 psi)
- Easier to carry as a spare

For road use, possible disadvantages apart from extra cost appear to be:
- Will ride a bit harder (I expect suspension to deal with this)
- not as good for occasional dirt (This is infrequent and I can live with it)
- May be more susceptible to punctures but as both tires are Raceguard, perhaps not?
- May be hard to install and remove?

The biggest question in my mind is whether there would be difficulty getting the kevlar bead Kojak off and onto the 355 Birdy wheel to a degree that puncture repair would be a problem.

David