2023 Kawasaki ZX-4RR KRT with ECU Flash First Ride Review || Iconic Bike of the Day 

I have this bike and the internet has all sorts of suggestions of what I could've bought instead. I'm like, Oh yeah, an Aprilia. Why didn't I buy the bike I *didn't* want? GoOd tHiNkInG. I got this bike because it speaks to me. It reminds me of the 250r ninja I cut my teeth on twenty years ago. I love how you have to be acting like an absolute s**thead before this bike misbehaves. I get 59 mpgs, but I'm not mobbing on it the entire life of the bike. This bike is in the same insurance category as the regular 400, and I paid $308 for the YEAR on it. It makes people smile, it has such a friendly demeanor, its so forgiving, you can see it all the way from Duluth, and it has all kinds of stuff that a proper, modern bike should have, but they gave it all to the model with the tiny engine this time for a change. Its such a dumb idea for a bike, and its made for nobody I can think of, and it makes such a goddamned racket just riding around town and 100% I love it. And yes, its expensive, but here's a little secret of mine: Work a little more and it won't be a big deal.

You get all the fun of a high revving sport bike, but don't have to break all speed limits in the universe to let it sing. The 90's 250 and 400 inline fours deserve a comeback.

Thank you Thank you Thank you Kawasaki for once again bucking the trend and just making bad a$$ $hit. While Yamaha turned the iconic R7 into squid twin, Kawis keeping it old school with the little displacement screamers.

Guy that bought this bike got so lucky ✌

In a world of parallel twins in everything, it seems expensive. If you don’t want to see inline fours go away, if you think small displacement inline fours still belong in motorcycling, this might not seem like it’s priced badly. What are your smiles worth?

I’d take this over an R7 any day.

Your laughing reaction is the same one I have every time I ride my 4RR. Lots of laughs

I need that Yoshimura slip on exhaust.

Just bought this bike last night! Beautiful bike. Can wait to save up for my mods.

Back in the 80's when I was pretending to be Freddie Spencer on a Honda NS400R the best I got was 30mpg worst was a wallet busting 22mpg😂😂👍👍

Just got one of these. Super fun. You can redline it thru 1st and 2nd and halfway thru 3rd look down and you’re only doing 70. It’s a riot

I'm just looking at starting my test and this is definitely on my radar. My biking friends will call me a bender and tell me to get a 600 i'm sure, but i've got a feeling this will fit me better than the 650.

Finally, a rider riding like we do. So, it’s going to have to be piped, flashed, brakes lines done, and fork done. Very nice.

USA is the best country! (Cries from India who sees only 150cc bikes :(

A renaissance of 400's would be awesome! Especially a naked bike.

This is my ideal track bike. It’s not so fast that you’re on the brink of becoming a pile of mush but has all the same controls and feel of a big bike. Wringing out a small bike is always fun compared to half riding a monster every day of the week. I can’t wait to get it. 1 more day.

If i had the money for a second bike i would love one

6:43, that Lambo can't go through traffic, but a sub $10,000 bike can. lol which is better?

Got one of these about a month ago, been bone stock other then a fender eliminator kit since I got it. I will say it’s just a little disappointing bone stock, you can definitely feel the power drop off after 11.5k rpm and it sounds like… well a stock inline 4 😂 Plan on putting a graves slip on and a new air filter on there, then the flash (probably from 2 wheel dynoworks, open to recommendations) VERY excited to do all that and get this little thing moving

The thing with Yoshimura was similar to what happened to me with Toce. Reached out to them for something else and they asked if I would donate the FZ-07 for the slip on and then eventually the full exhaust. PS. If I get back into riding, I think this is going to be the way I go. I have ridden 600's all the way up to a Busa, and even the 2016 R1 that Toce has which I think is around 194 RWHP. The power profile of the parallel twin wasn't great nor was the suspension, the lack of fairings wasn't ideal, and the vibrations kinda sucked. So having something that makes similar power, but is smooth...yeah, that sounds just right.

I want to see Bimota do something with that engine.

Amazing cute bike ❤

I'm too big for one of these to be my only bike, but I can't think of anything I'd prefer as a number 2 in garage ride.

What a shame , stuck squiding around in the city on a jewel of a sport bike....suspension probsbly set up for a 145 lbs rider....

Amazing bike

My dream bike. I love the sound, look and everything. I had Kawasaki ninja zxr 400 1992 for 8 years. Good old days.

This is what the R7 should have been.

Hell yeah Abhi! Great review.

You can filter in LA, I have to split in Tampa

These are the bikes we should have been getting for the street and beginners I’ve been waiting to see a bike like this because I don’t want to buy a bike that I’ll not love and feel like I’m going to out grow after a season or two. this bike is expensive but for someone like me who just wants to start and keep the bike I start on this price will be small and in the longer run it won’t matter because I have no intention of selling it 💚

Hi, 1. Can we have this the only bike as a daily commuter bike in country like India with high traffic 2. How is low end torque ? Possible to ride at 50-60kmph at 6th gear ?

That thing sounds amazing for a tiny displacement. I saw Moore Mafia get one up to 72 hp

Great scoop man!

Sounds fantastic!

🔥👍🏽

People are saying 70-75hp after pipe+tune. It's a sick little bike

I wonder reliability of the engine. That's alot of pressure and stress in that little thing

thanks for doing a good review instead of only riding for five minutes mumbling into the mic like some others do

I rode on that the Kawasaki demo trailer had I was told I was the first person not affiliated with Kawasaki to ride the bike had 100 miles on it. Insanely impressed

After flash how much bhp it's making and how high the rpm is going now ?

How was the rear suspension setup. Soft or stiff?

Nice bike but it weighs as much as the sister ZX6R.

Well i think we are reaching a point where the 400 can get into the speed of a 1000 cc bike

Always been a 600 guy, but damn this thing is sexy

Anyone pls tell me that whether this bike will come to India or not?

Sport bikes aren't built with 200 pounders in mind. That shouldn't even be a complaint. just buy it and plan to do suspension work if you're a big boy. Don't expect them to come from the factory suspended for you.

First gear tops out at 53-55, plenty fast!

This bike will never touch the indian shores

Saludos desde México ✌️

do you know when the slip-on would be out for retail sale?

So, Kawasaki is selling a bike that has to be illegally modified to make it perform acceptably. Pretty sleazy.

Hp Total?

I still think 250cc Zx25r sounds way better and way safer to ride .

ZX4RR or Honda CBR650R. Help me to decide

I wanted one. But now I'm not sure.

man is lane splitting pretty fast for being on someone else's brand new motorcycle.

lane filtering is next level..

How tall are you?

Might as well swallow the mic... TF!

Not to hard to find. My dealer has had 4 of them. They sell in a week. If I want one he will give me the next one. I passed. It's a turd. It's also heavy for a 400.

Once you go liter, you'll never go back to a small beater.

Just buy a RS660 and be done

Why buy an underpowered bike and try to get more power......just get the 600 version

lol these are not hard to find