After hearing that the CR500 will be un available in the near future I have opted to get a set of the new ZZS.
They arrived this morning from Caterham & are now sitting in the garage waiting to be fitted a little later in the year once I've worn the last mil out of the CR500's
They have 5mm of tread. Think that is same as the CR500's.
Tread patten looks good & is similar the the CR500.
Looking forward to trying them out. 
Superlight 'R' forever 
Looking forward to a few blats to help lose that last 1mm
Garry Hooton
LT - Merchandise Lead
Gary, do you happen to know if the 15" versions are available yet ?
Roadsport SV 2006 DVA 1.8K 190bhp
Steve
I have no idea.
Superlight 'R' forever
If you can put them on the kitchen scales before fitting, I'd like to know how heavy they are, thanks [/weightweeniemode]
Actually, disregard - Just saw JulianH has answered it in the Tech section...
A quick check in Tech Talk has resulted in the CR500 175/55/13 weighs 6.05kg & 205/55/13 weighs 7.03kg compared to 7.65kg & 8.80kg for the ZZS respectivley.
Superlight 'R' forever
Have you got the CR500 195/45/R15? as according to the Avon website these are not available until end of June.
I am looking or a replacement to mine so looking at options (and will probably need them sooner rather than later ater Dunsfold tomorrow !!
195/50/r15 R888 on Tyreleader at £81.60 a corner delivered.
Keep an eye out on Openeo.co.uk. I bought a set of these at £63 delivered earlier this week (was going to post a link but they've sold out). I missed out on some R1R's at £32 a tyre becuase I dithered
Bu
er, don't come in 14" 