Of course no doubt.. With super charger the H2 is much more faster than rc8r. H2 having 206 bhp with RAM AIR. and rc8r having 187 bhp.

H2

Fastest bike is Ninja H2

The fastest one from both is the Kawasaki Ninja H2. The bike is the only one to have a supercharger in the motorcycle industry and comes with a 998 cc, 4-cylinder engine producing 207.1 BHP @ 11,000 rpm and 132.8 NM @ 10,500 rpm. The bike comes with a six speed gearbox and takes 2.5 seconds to reach 100 kmph from stand still. It comes with a 17 liter fuel tank and comes with Kawasaki supercharger for high performance. It comes with 238 kg of kerb weight and 130 mm of ground clearance. It can be bought in India for INR 29,00,000 and has a top speed of 300+ kmph whereas the KTM RC8 R stays at 287 kmph only.

Kawasaki Ninja H2 - Built Beyond Belief

The KTM 1190 RC8 R is the fastest one out of both the bikes. The bike comes with a much bigger engine than the R25's 250 cc twin cylinder motor. The 1195 cc, twin cylinder motor produces 173 BHP @ 10,250 rpm and 123 NM @ 8000 rpm. The power values are nearly 6 times the once being produced by the R25. The RC8 comes with twin 320 mm disc brakes for the front and a single 220 mm disc for the rear. The top speed of the massive machine comes out to be 287 kmph and it weights 186 kg only. It takes 3.1 seconds for a 0-100 kmph sprint and comes with an expected price tag of INR 20,00,000.

All You Need to Know about KTM 1190 RC8 R

The R6 is a 599cc beast, produces 122bhp of raw power and an amazing ride. But yet, it has nothing in front of the 1190 cc, produces huge 173 bhp through its amazing V-twin engine, clocks around 300kph and one of the most extreme road legals. R6 is a much better day to day and a track day quite so often, and the RC8 is a track beast, with the most mean look ever.

KTM RC8

KTM RC8 is the faster model when compared to Yamaha R6. Both the bikes belong to different categories as the 600 cc middle weight racer lacks far behind from the huge 1200 cc KTM beast. The RC8 R is powered by a 1195 cc engine, producing 173 BHP @ 10250 rpm and 123 NM @ 8000 rpm. The values are huge when compared to the R6. The KTM RC8 R comes with a top speed of 287 kmph with stock components. It has a 16.5 liter of fuel tank, returning only 10-12 kmpl on normal riding. It comes with an adjustable seat height of 805-825 mm and comes with nearly the double price of R6. It is expected in India with a price tag of INR 20,00,000.

All You Need to Know about KTM 1190 RC8 R

Yamaha R6 is 599cc & RC8 is 1195, almost twice, hope that answers your query.