the 3 tires you mentioned cost more than the ku31. and r1r with 140 treadwear is into semi slick rating
also, kumho comes with 2 version of ku36. once was china made comfort ku36 and another one was ecsta ku36 which is performance orientated and comes in limited size.
again, dry and wet grip is good for its price. 205/45/r16 used to cost less than 250 last year while the re001 and r1r you're comparing with cost more than 300 bucks. in term of price and performance, the ecsta ku31 even beat the lousier yokohama a drive r1.
if you're used to re001 sidewall, just stick with re001. even the discontinue ad07 has a softer sidewall compare to re001.
i've seen people using ku31 for track. although its not really suitable.

waja stock 16" is 205/50/r16. so, 205/45/r17(slower speedo reading) or 215/40/r17(faster speedo reading) is fine with minimal tolerance in braking capability, fc and speedometer reading. make sure to get the lightweight wheels.
also, you need to look at the suspension setup coz' 215 with profile 40 / 45 width might touch the inner fender during heavy load.

both re001 and re050 has a speed rating of 'w'.
also, re050 is more sticky with 140 tread wear rating(semi slick rating) while re001 rated at 220.

the reason kumho categorized the ecsta ku-31 as a summer tire is mainly to suit the european market where there
are 4 season. unlike winter tire, summer tire class does not have a traction / grip on ice / frozen surface.
ie; ps3, v12, f1 asymmetric falls into summer tire category too.
raining and winter season is 2 different world.

try ps3. 15" should be below 260 bucks. tires tread may not as menacing as parada but it perform better

btw, continue the discussion at V2

this thread is already well over 125 pages.
continue the discussion HERE

This post has been edited by yngwie: Jun 20 2011, 07:53 AM