I'm looking for some advice on tires for my R90/6. I have a Metzeler Lasertec front tire (fairly new) and need to replace my Metzeler ME 88 Marathon rear tire. Apparently that model in my size is no longer made. So, I could go with a Lasertec on the rear which has a modern looking tread, or with a Metzeler ME 77 which has the more traditional block tread that might look more appropriate for my 1976 bike.
I'm wondering which tire to go with (I'm not sure the newer style tire would look right on my bike), and whether the newer style more expensive Lasertec would have better handling characteristics (it's about $50 more than the ME 77).
Advice would be appreciated.