from the teaser image, it looks like there are at least 2 exhaust headers, but who knows, maybe they just took an R6 and dressed it up for the R4 photo shoot, lol
what looks nice is the rear swing-arm, has the look of the bigger sports bikes~
only time will tell just what Yamaha has in store for the 250 segment!
currently here in indonesia they have a 225cc air colled 1 cylinder road bike (Power: 19 PS / 8,000 RPM) that looks like this:
and a smaller 150cc liquid cooled 1 cylinder bike (Power: 11.10 kw (14.88 HP) / 8,500 rpm) that looks like this:
but yamaha doesnt have any full faring bikes here on the local market, so if they could get the R4 here.... that would be great to compete with the Kawasaki monopoly of the 250s sports bike!