I've lived thru the 90s when RGV250, TZR250 and NSR250 were the rage and they were. The GSXR400, VFR400 ZX400RR all were bad ass bike in the 90s that America never got! The ones lucky enough to find gray market imports with CA tag were super expensive and rare. For me, I'm just getting something I were never able to get in the USA and the 40th livery reminds me of my late mother. I'm also one of those guys that believe a 600 is still a bit too much bike for a 5'7'' guy?
Just got my zx4rr and it is soo much fun!!! It has a fantastic sounding engine, it’s easy to ride, and phenomenal engagement with the machine every time. Great bike!
It is way more fun to ride a slow bike fast instead of a fast bike slow. On my R6 I never had to change the gears to reach the speed limit. Not much fun at all. I picked up an R3 after I had a nasty back injury. The truth is that I have more fun on the R3. It now my daily rider.
i believe this is the perfect bike for me. coming from riding dirtbikes and quads and who wants to transition to a begineer street inline 4 bike. this is the one for me.
Av the 40th anniversary zx44rr I payed 10.800 for mine had gsxr600 before that ninja 650 then z900 I love the zx4rr real screamer and the quick shifter so smooth
Watched the whole video. Florida weather is so nice! Thinking to get the ZX4RR but it’s wayy too expensive where I live. The base variant starts at $13k
People are hung up on the price, that’s why they make the ninja 400. I think it has quality hardware and a screaming engine that sings like nothing else out there. For me that’s all I need 😎🏍️
ZX6R you can't ride it to it's potential legally on the street. You just can't. ZX4RR you can, which means you get the joy of riding the hell out of a bike, while not breaking every law on the planet. It's also cheaper now than it was. Kawasaki listened...with the year end discount, and military discount I got a 40th anniversary edition 4RR for about $9500, out the door for a hair over 10K. The 6R would have been 12.5K+ easy. That's 25% more for those of you who are paying attention. I have been riding for 35 years....I own a Ducati Streetfighter V2 and an R1....and this little 400 is SO fun to ride. If I were building a track day bike I'd go with the 6, but the daily rider is the 4RR ALL DAY.
The entire purpose of a supersport is extra-legal speed and sharp cornering ability... why spend similar money on a 400 and kneecap yourself for no benefit beyond saving a couple grand? Makes zero sense to buy the zx4rr when the zx6r exists. Maybe if the 4 was 100lbs lighter but... it's not
Wrong! YOU can't ride a ZX6R to its full potential on the street, but some people sure can. "The law," "speed limits,"and "staying out of trouble" is an oxymoron for crotch rockets, dude. That's the most regurgitated bullshit line. People who have no idea what they're talking about repeat it because it sounds safe and conservative. You don't have any business giving advice about what should someone should ride for the money they spend.
The thing with the power niche. I think this thing fills a good spot where it's a cool 399cc i4 that is fast for just street riding and is a good tool to learn with on the track. Someone could buy this, then later buy a 1000cc and still have a reason to keep the 4RR. Someone who gets a 600cc just because it is fast will probably just sell it to get a 1000 because it is just faster and has more features.
The zx6r maybe a better value in the short term but long term. The high theft, the insurance, the traffic tickets. Yeah It may go 180mph but I live in Ohio I'm not racing supercars like they do in LA, Florida, or Texas. People drive Kias and Volkswagens up here and I'm sure the zx4rr would do well enough, my HD Softail does. Now what makes me want a zx4rr is the noise.....it reminds me of a Carrera GT or LFA the way it howls and I'm to poor to afford those cars. The Cbr650, Xrs900 all good sounding but the zx4rr is the best sounding motorcycle on the market to me.
Kirk, Happy New Year to you and your family. I can't thank you enough for turning me off of the Mt09. I wish Kawasaki &/or the like would come out with your ZX4RR platform but in a street / naked version. My arms are too short for the ZX4RR. Meanwhile, I hope you will review when they arrive in US: 2025 Aprilia Tuono 457 2025 Yamaha Mt07. ( I wish Yamaha would bring in the Y-AMT Version but I fear they are holding back on it as a marketing ploy until 2026 ). Yamaha may lose customers if the latter happens. Thanks. Love & greatly appreciate videos.
ZX4RR is def a track bike for the guys that know how to lay it down on the track. If the ninja 400 is great on the track then I can imagine that this would be all the more so. Street riding tho- I'd get a ZX4RR over the ZX6R because it's more forgiving.
i guess it varies heavily by state but the majority of people id say looking at the zx6r, like me, vs this one, the zx6r insurance compared to 4rr is crazy about a grand more per year for the 6r for me at least
It is way more fun to ride a slow bike fast instead of a fast bike slow. On my R6 I never had to change the gears to reach the speed limit. Not much fun at all. I picked up an R3 after I had a nasty back injury. The truth is that I have more fun on the R3. It now my daily rider. Between the ZX4RR and the ZX6R. Both are great looking bikes. I would choose the ZX4RR. To me it is worth the money.
Kirk please do a video on why you chose this over an R7, if you havent already. Same power as your bike tuned with double the torque. I think R7 is best street bike imo and would love to hear your thoughts, it has the most hardcore ergos out of all the non super sports and a lot of people dont like it for that reason🤔
Unfortunately I'm vertically challenged at 5'7" so I will be getting the ZX-4RR, as the seat height on the 6R is too tall. And when you're riding a motorcycle confidence is everything. I can flat foot on the ZX-4RR so that's my choice.
@aarongendron1356 I know my friend, but when you can flatfoot a motorcycle it gives me infinitely more confidence than not doing so. Maybe that concept doesn't apply to you.
Perfect video!! Man, i've been stuck for weeks trying to decide on a bike. #1,2 and3 factors for me is the FUN, SOUND and safety....hence don't want a bike larger than a 500. My choices are a used Ninja 400, a New 500 SE or a new ZX4RR. The sound on this is unbeatable and looks the funnest of the bunch. I can do all the mods on a 400/500 but would it even sound close to this zx4rr machine?
2:12 that CA law is counterintuitive. Why reduce power on this bike to limit noise pollution? Now people have to rev out higher just to reach speed limit, rather than revving less and less sound producing.
I'm torn between R7, zx6r and zx4rr. I'm actually leaning towards the zx4rr so I can ring it out on the streets lol. Unless i find an amazing deal on the zx6r.. the zx4rr might be the way!
I had almost the same bike options, I went zx4rr because of the 4 banger symphony. And I’ll be able to be in high revs from Street light to street light.
Zx6r definitely is the better buy based off performance to dollar value but the main difference is the ZX6r is stupid uncomfortable for regular riding compared to the Zx4rr
@@worst-hd-player because the clipons should be positioned and tailored for each rider. Companies use a standard default set for everyone, but it doesn’t suit all riders. Ergonomics is easy to skip because it has no flash, but it makes the bike more personalized for the rider and allows them to get the most out of their bike by increasing comfort and control. Many track riders use aftermarket clipons to widen them and reduce their angle. Almost all the super sport bike clipons from the factory are very narrow and have a sharp angle downwards.
Though I would to still hear his review. I rode here in OK during an Aprilia event in Tulsa. The bike is gutless. Low HP, and there is something funky in 2nd gear. Feels like it just dies. Really funky part, when I mentioned it to them, they said they "know about." Okay! What is it???
Not really fair to add in the price of a flash when comparing these two. Most people are going to flash ANY bike they get, since they’re all restricted
This bike is really weak specially in lower reps which is used more in the city start stops . My Duke 390 makes more torque than this Kawi at lower rpms and it’s much lighter, but I feel it’s veryyyy weak. I don’t know how you’re enjoying so much. Maybe because I have at least 15 years of experience with a gap of 10 years. But whatever works and you like is important ❤
I've lived thru the 90s when RGV250, TZR250 and NSR250 were the rage and they were. The GSXR400, VFR400 ZX400RR all were bad ass bike in the 90s that America never got! The ones lucky enough to find gray market imports with CA tag were super expensive and rare. For me, I'm just getting something I were never able to get in the USA and the 40th livery reminds me of my late mother. I'm also one of those guys that believe a 600 is still a bit too much bike for a 5'7'' guy?
Just got my zx4rr and it is soo much fun!!! It has a fantastic sounding engine, it’s easy to ride, and phenomenal engagement with the machine every time. Great bike!
Congratulations 👏
It is way more fun to ride a slow bike fast instead of a fast bike slow. On my R6 I never had to change the gears to reach the speed limit. Not much fun at all. I picked up an R3 after I had a nasty back injury. The truth is that I have more fun on the R3. It now my daily rider.
Exactly
i believe this is the perfect bike for me. coming from riding dirtbikes and quads and who wants to transition to a begineer street inline 4 bike. this is the one for me.
That quick shift up and down I’m very jealous.
Av the 40th anniversary zx44rr I payed 10.800 for mine had gsxr600 before that ninja 650 then z900 I love the zx4rr real screamer and the quick shifter so smooth
Watched the whole video. Florida weather is so nice! Thinking to get the ZX4RR but it’s wayy too expensive where I live. The base variant starts at $13k
People are hung up on the price, that’s why they make the ninja 400.
I think it has quality hardware and a screaming engine that sings like nothing else out there.
For me that’s all I need 😎🏍️
ZX6R you can't ride it to it's potential legally on the street. You just can't. ZX4RR you can, which means you get the joy of riding the hell out of a bike, while not breaking every law on the planet. It's also cheaper now than it was. Kawasaki listened...with the year end discount, and military discount I got a 40th anniversary edition 4RR for about $9500, out the door for a hair over 10K. The 6R would have been 12.5K+ easy. That's 25% more for those of you who are paying attention. I have been riding for 35 years....I own a Ducati Streetfighter V2 and an R1....and this little 400 is SO fun to ride. If I were building a track day bike I'd go with the 6, but the daily rider is the 4RR ALL DAY.
Yes you can. It's called smaller front sprocket and larger rear
You guys are just falling for the news articles
No one really cares about "legally"
The entire purpose of a supersport is extra-legal speed and sharp cornering ability... why spend similar money on a 400 and kneecap yourself for no benefit beyond saving a couple grand? Makes zero sense to buy the zx4rr when the zx6r exists. Maybe if the 4 was 100lbs lighter but... it's not
Wrong! YOU can't ride a ZX6R to its full potential on the street, but some people sure can. "The law," "speed limits,"and "staying out of trouble" is an oxymoron for crotch rockets, dude. That's the most regurgitated bullshit line. People who have no idea what they're talking about repeat it because it sounds safe and conservative. You don't have any business giving advice about what should someone should ride for the money they spend.
@@trippleoseven Actually, many of us do. Because we aren't douchebags.
There’s nothing like leaning on a zx6r. Not the best daily but the zx6r is an experience like no other
The thing with the power niche. I think this thing fills a good spot where it's a cool 399cc i4 that is fast for just street riding and is a good tool to learn with on the track. Someone could buy this, then later buy a 1000cc and still have a reason to keep the 4RR. Someone who gets a 600cc just because it is fast will probably just sell it to get a 1000 because it is just faster and has more features.
The zx6r maybe a better value in the short term but long term. The high theft, the insurance, the traffic tickets. Yeah It may go 180mph but I live in Ohio I'm not racing supercars like they do in LA, Florida, or Texas. People drive Kias and Volkswagens up here and I'm sure the zx4rr would do well enough, my HD Softail does. Now what makes me want a zx4rr is the noise.....it reminds me of a Carrera GT or LFA the way it howls and I'm to poor to afford those cars. The Cbr650, Xrs900 all good sounding but the zx4rr is the best sounding motorcycle on the market to me.
It goes 145 stock... 150 downhill. Tuned maybe 170
There is a video going around on YT of the ZX4RR doing 0-60 MPH in 4.19 seconds.
Kirk, Happy New Year to you and your family.
I can't thank you enough for turning me off of the Mt09.
I wish Kawasaki &/or the like would come out with your ZX4RR platform but in a street / naked version.
My arms are too short for the ZX4RR.
Meanwhile, I hope you will review when they arrive in US:
2025 Aprilia Tuono 457
2025 Yamaha Mt07. ( I wish Yamaha would bring in the Y-AMT Version but I fear they are holding back on it as a marketing ploy until 2026 ). Yamaha may lose customers if the latter happens.
Thanks. Love & greatly appreciate videos.
Happy new year! Thanks for enjoying the content.
Reviewing bikes can be tricky, but I'll see what I can do in 2025!
Pushing it really hard at a track day - how do the brakes hold up?? Power/fade??
ZX4RR is def a track bike for the guys that know how to lay it down on the track. If the ninja 400 is great on the track then I can imagine that this would be all the more so. Street riding tho- I'd get a ZX4RR over the ZX6R because it's more forgiving.
i guess it varies heavily by state but the majority of people id say looking at the zx6r, like me, vs this one, the zx6r insurance compared to 4rr is crazy about a grand more per year for the 6r for me at least
It is way more fun to ride a slow bike fast instead of a fast bike slow. On my R6 I never had to change the gears to reach the speed limit. Not much fun at all. I picked up an R3 after I had a nasty back injury. The truth is that I have more fun on the R3. It now my daily rider. Between the ZX4RR and the ZX6R. Both are great looking bikes. I would choose the ZX4RR. To me it is worth the money.
So you rode around in 1st?
@ only on days that I felt lazy and just did not want to change gears. Our highest speed limit is 55 mph.
@@Maui-Moto ok,thanks
Kirk please do a video on why you chose this over an R7, if you havent already. Same power as your bike tuned with double the torque. I think R7 is best street bike imo and would love to hear your thoughts, it has the most hardcore ergos out of all the non super sports and a lot of people dont like it for that reason🤔
4RR has better brakes, better suspension, and is a four cylinder.
@@Rothbardysuspension is arguable. The kawa forks are only preload adjustable according to the web.
Easy question for me 6r die quick I know me if I had that kinda power zx4rr sound good got enough to get into trouble and looks great the 40th edition
Unfortunately I'm vertically challenged at 5'7" so I will be getting the ZX-4RR, as the seat height on the 6R is too tall.
And when you're riding a motorcycle confidence is everything.
I can flat foot on the ZX-4RR so that's my choice.
You don’t ride with your feet on the ground!!!!! With that said I’m 5’6” n have an Aprilia 1100factory. Also the zx4rr 😊
@aarongendron1356
I know my friend, but when you can flatfoot a motorcycle it gives me infinitely more confidence than not doing so.
Maybe that concept doesn't apply to you.
I fully agree. It’s what my race buddies tell me when on the rsv4 factory. Just wanted to pass it on. lol
Perfect video!!
Man, i've been stuck for weeks trying to decide on a bike. #1,2 and3 factors for me is the FUN, SOUND and safety....hence don't want a bike larger than a 500.
My choices are a used Ninja 400, a New 500 SE or a new ZX4RR. The sound on this is unbeatable and looks the funnest of the bunch. I can do all the mods on a 400/500 but would it even sound close to this zx4rr machine?
A twin will never sound like a screaming four.
A parallel twin is never going to sound like this high pitched i4 whine. Even with mods.
Every time I think you’re going to be riding both bikes and then it hits me
how do we feel about flashing it before the warranty is up ?
Maybe a separate video
What bike would you recommend for a 5’2 beginner, female?
grom, lowered ninja 400, lowered r3. If you can manage stock height it's better though.
2:12 that CA law is counterintuitive. Why reduce power on this bike to limit noise pollution? Now people have to rev out higher just to reach speed limit, rather than revving less and less sound producing.
I love that bike. Im trying to sell my yamaha r3 to get that.
Besides owning a zx4r because it is more of a novelty, there is no reason to go for it over the zx6r
did you watch? cheaper insurance, better ergos, better Q/S, etc.
Considering supersport bikes, The best buy in 2025 is the cbr 600rr!!!
In America we still get the old one. UK has the new generation 😭
I'm torn between R7, zx6r and zx4rr. I'm actually leaning towards the zx4rr so I can ring it out on the streets lol. Unless i find an amazing deal on the zx6r.. the zx4rr might be the way!
I had almost the same bike options, I went zx4rr because of the 4 banger symphony. And I’ll be able to be in high revs from
Street light to street light.
The bike is also unique...there is nothing else like it out there currently, which makes it fun on another level entirely.
Zx6r definitely is the better buy based off performance to dollar value but the main difference is the ZX6r is stupid uncomfortable for regular riding compared to the Zx4rr
It’s very easy to get higher clipons (risers) and have a more upright back angle.
@ but why get a supersport just to raise the bars?
@@worst-hd-player because the clipons should be positioned and tailored for each rider. Companies use a standard default set for everyone, but it doesn’t suit all riders. Ergonomics is easy to skip because it has no flash, but it makes the bike more personalized for the rider and allows them to get the most out of their bike by increasing comfort and control.
Many track riders use aftermarket clipons to widen them and reduce their angle. Almost all the super sport bike clipons from the factory are very narrow and have a sharp angle downwards.
Try review Aprilia RS457
Though I would to still hear his review. I rode here in OK during an Aprilia event in Tulsa. The bike is gutless. Low HP, and there is something funky in 2nd gear. Feels like it just dies. Really funky part, when I mentioned it to them, they said they "know about." Okay! What is it???
@@jamespreacherbeck4306Every time Kawasaki over Aprilia
Not really fair to add in the price of a flash when comparing these two. Most people are going to flash ANY bike they get, since they’re all restricted
Good point mate. Cheers.
Screaming bike but stock headers sounds like F1 car
in my country zx6r still 18x minimum salary more than zx4r its 1/3 or 30% more expensive
Can’t go down from a zx6r to a zx4r.
Have you tracked against a zx4R? lol you’d be surprised.
Since you like redlining it in a straight-line so much maybe you should do a video about attending the Rickey Gadson Drag Racing School.
No choice. Florida is only straight and flat
ZX6 waaaaay better bike. Period.
This bike is really weak specially in lower reps which is used more in the city start stops . My Duke 390 makes more torque than this Kawi at lower rpms and it’s much lighter, but I feel it’s veryyyy weak. I don’t know how you’re enjoying so much. Maybe because I have at least 15 years of experience with a gap of 10 years.
But whatever works and you like is important ❤
636 is superior, you can still prefer the 4RR though
Yeah idk why anyone gets a zx4. None of your points were valid.
LOL....90% of riders say IT"S THE SOUND and FUN FACTOR.....no other 400 or 500 comes close!
Go race against one on track day lol
@@GhadSpeed I plan to one day for sure!
Youre paying for the experience not the horsepower. You just cant rip on a zx6r everywhere, unless you like tickets and/or death.