https://www.tirerack.com/tires/tires.jsp?ti...XL&i3_Qty=2
The 225/50R15 won't be a fit under stock rear fenders, but will be for some cars. The 195/55R15 will likely fit just about any 914 with 15-inch wheels. Overall diameter front to rear within 0.6 inch, so a bit better than running the more common 205/50R15 & 225/50R15 combo.
Tagged as "Extreme Performance Summer" with super simple sidewalls and a very 1980s tread pattern, at price of $177ea and $191ea. Also available in 195/50R15, 205/50R15, 205/55R16, 225/50R/16, and 245/45R16—with the latter three being ideal for 914s and 911s on 16s. 200 treadwear rating would be more than enough for me, given the limited mileage my 914 gets.
I suspect the performance is pretty impressive...
Anyone try them yet?