I just took my zx4-rr to my first track day last Sunday. Tune, brembo corsa corta front master and lines, but regular old exhaust. I'm 5'8 and 144 and it feels like they finally made a bike for us folk. I'm glad you guys are going thru the trouble of material for this bike. Not very many made, not very popular, not any real point to it yet, but you're going forward with the bike anyway. I feel "seen", as kids said 8 or 9 years ago.
I really recommend you do go thru with that ABS delete and think about the new master if you wanna throw the cash too. The factory brakes never felt normal to me. Really hot-and-cold.
@@joek81981 Instead of the ABS delete, if the 4RR does not have the option to turn off ABS, would recommend removing the abs sensor or the motor rather than removing the feature altogether if you are planning to daily it. Can even make a switch system to cut off the signal to the abs motor! This is something we do with our RC390s to compete in the national championships here in India!
..I'm an older rider (62) been riding since 87' and don't think I'll be doing track days. Currently been cruising around on a Ninja 650 since 2018, which I love. I heard an unverifiable rumor coming out of Japan and even a Kawasaki dealership, that they may offer an SX version of ZX-4. Kinda like the Ninja 1000 SX sport tourer. If that happens, I would go that route but if not I may go for the ZX-4. EXCELLENT review !
Thanks! Glad to hear you are enjoying our content. I can't wait to get this bike more sorted to haul butt and ride it at many different tracks. I think we will have more content from the different stages of our project
Great content ! Over here in the UK we're starting a junior (15 - 21 yrs) championship on these bikes, I think they'll be a brilliant bike for budding racers to learn their craft, plus they'll be more exciting than the 300/400 class singles and twins they race atm...50 % more power and long rev range, sweet chassis....what's not to like 🙂👍
I am really looking ofrward to seeing what becomes of race classes that permit these bikes. For now we will try to race them against the bigger twins and then just take the DQ sinnce ours is not a twin. Performance on paper wise I think that is where the bike belongs. We can also enter it in middleweight on the tighter, more technical tracks. If the race orgs all adapt a class for this bike I bet other manufacturers will be inclined to launch a competing bike in the near future.
Thanks for the nuanced review. Looking forward to picking up my ZX-4R SE next week. Any thoughts on how the bike would handle being geared down for street torque -1/+1 or -1/+2?
@@lancemorgan2187 thanks for the feedback. Do you shift down to first year for hairpin turns? There's a lot of really tight roads where I ride, so that's why I was thinking of gearing down
Really detailed review but one thing I would like to point out is the foot clearance issue is solely due to you having a more relaxed body position and its a rider side fault. As someone who races and does track days very frequently. your toes are way out of the foot pegs which tells that you are not that used to the aggressive/race foot positioning. From what I've seen this is the perfect bike to get into track racing/riding for any beginner riders.
@@TSTindustries might be funny to you if you are a bigger rider and feel cramped because of that and its understandable. I'm 5'7 and had no issues with the rc390 foot rest during trackdays or when racing in the stock category, and it has one of the worst footrest for a stock bike for trackdays. Would even understand if you said that a stock R3's pegs scrape which it does at higher leans, but doing that on a ZX4RR, its solely on the rider positioning unless you are doing GP rider laptimes and lean angles which pretty sure none of us are!
At the moment Yoshimura only offers a slipon exhaust so it is not worth tuning that. Our stock exhaust unrestricted tune will be just fine with any slipon. The next two we are doing consecutively are Graves and M4. Our custom Graves header with four bungs should be here Friday so we should start on that next week.
Great video! Im glad you gave your honest thoughts and review it for what it is. Too many people are quick say its too expensive might as well get a zx6r. I dont think it was meant to take over the world lol
At this point there are no real comparable bikes so comparing this to a 600 does not make sense. If and when other manufacturers come out with comparable bikes we can start comparing. It is a whole different clas sof bike. We are hoping that a racing class emerges for htis bike and that may draw out the likes of Yamaha, Honda, Suzuki to make a machine capable of competing with the ZX4RR.
Awesome, hope i get to try it out soon. It is always a shame when they make a bike like this too street oriented. Its inconvenient on the street anyways just make it as race as possible 😅 its such a waste of money to have to replace everything.
Nine out of ten people will be using the bike on the street so Kawi had to do what they did. I just wish they had a version with no ABS to choose. Paying extra for a system I will have to put effort to eliminate is one of the thuhmbs down points.
I don't see any reason for this bike to be sold in the US. The 400 is an awesome bike for a lot less money. For the price of the 400rr I would just spend the extra money and get a 600. I hope you prove me wrong can't wait for future videos
I bought it because I wanted a 4cyl engine, but was not ready for 600 power. I love the bike. Sure, its a bit overpriced, but It checked all of my boxes.
A 600 is harder to exploits fully on the street without risking jail or your licence. Here you can get the full experience without problems. It's fast enough and a 600cc 4cyl is more expensive. In Europe it's 3000€ cheaper than a zx6r, for 80hp vs 120hp. Oh and it's lighter than your typical 4cyl 600cc. A zx6r is 210 kg, the zx4rr is 190.
This is made for people who are passionate about riding track and wanted something similar to a 600 but smaller so easier to practice on and finetune your riding. This isnt meant for riders who want more power for every $ spent. If its not made for you then move on and get the 600. Kawasaki isnt begging people like you to buy this
The price is, what the price is, who else is making a 400cc inline 4 that has all the same tech as the bigger bikes ?!, No one yet, and this bike will still hold good value, and over the years will be worth more, that's the whole point of rarity items. Sure, it doesn't have 100+ hp to the ground right out of the box, it's not hitting 190+ mph speeds, but that's not the point of it, and why there's many different bikes out there for different purposes at different costs. My opinion, this is a bike you buy, ride it every now and again, and have a different bike that makes up for what you really want, or you buy two.
I think its the initial hype of the bike, honestly after going through the specs the only thing that is its selling point is the inline 4 but its still a 400. Considering the Honda 650 is also available in the same cost the bike is over priced. When I looked at it logically this bike didn't make sense. As I could get the ninja 400 and it can do whatever this bike could do with a fraction of the cost or I could go for the larger Honda. Asking $10,000 for a 400 doesn't make sense, kawasaki should bring down the cost of this product as the cost itself is one of the reasons not to go for this bike.
A lot of that weight can be shed pretty easily. Most of the street homologation components on this bike are developed in a very cost effective way that uses heavier and cheaper materials. Kawi did this most likely knowing that they have to include those parts for homologation but most owners will be pulling them off.
@@TSTindustries While I understand your point here given the price Kawasaki is asking I (and everyone else) should expect more honestly. I mean this little bike weighs as much as an R7!!!
Like everyone has said, this bike is meant for track riding. And when a bike becomes a track bike itll be shedding a lot of weight since everyone is throwing money into it to build it. Kawasaki isnt begging people to buy this. It sells itself to actual racers and avid track riders. Youre obviously not one so go buy an r7
Eh, not really. It’s not much heavier than the old Yamaha FZR400. Throw on a pipe and a lithium battery and you’re comfortably under 400lbs without the inertia from a heavy crank.
@russinbot3172 Although I respect your opinion in the first part of your comment, I can't agree with the second part. We own two N400, this ZX4RR, plus a whole arsenal of other modern bikes for street and dirt ranging in size from 125cc to 1000cc. That little ZX4RR provides some emotions the other bikes do not.
I just took my zx4-rr to my first track day last Sunday. Tune, brembo corsa corta front master and lines, but regular old exhaust. I'm 5'8 and 144 and it feels like they finally made a bike for us folk. I'm glad you guys are going thru the trouble of material for this bike. Not very many made, not very popular, not any real point to it yet, but you're going forward with the bike anyway. I feel "seen", as kids said 8 or 9 years ago.
I really recommend you do go thru with that ABS delete and think about the new master if you wanna throw the cash too. The factory brakes never felt normal to me. Really hot-and-cold.
@@joek81981 Instead of the ABS delete, if the 4RR does not have the option to turn off ABS, would recommend removing the abs sensor or the motor rather than removing the feature altogether if you are planning to daily it. Can even make a switch system to cut off the signal to the abs motor! This is something we do with our RC390s to compete in the national championships here in India!
..I'm an older rider (62) been riding since 87' and don't think I'll be doing track days. Currently been cruising around on a Ninja 650 since 2018, which I love. I heard an unverifiable rumor coming out of Japan and even a Kawasaki dealership, that they may offer an SX version of ZX-4. Kinda like the Ninja 1000 SX sport tourer. If that happens, I would go that route but if not I may go for the ZX-4. EXCELLENT review !
Good review! Love seeing a small displacement i4 bike hit the US market for the first time in decades. Hope it sells well.
Amazing review - 100% honest and very helpful - unlike many other videos out there 🙂
Thanks! Glad to hear you are enjoying our content. I can't wait to get this bike more sorted to haul butt and ride it at many different tracks. I think we will have more content from the different stages of our project
@@TSTindustries Great - we are looking forward.
Well said Bart that’s exactly the ergo changes I’m looking forward to make
Great content ! Over here in the UK we're starting a junior (15 - 21 yrs) championship on these bikes, I think they'll be a brilliant bike for budding racers to learn their craft, plus they'll be more exciting than the 300/400 class singles and twins they race atm...50 % more power and long rev range, sweet chassis....what's not to like 🙂👍
I am really looking ofrward to seeing what becomes of race classes that permit these bikes. For now we will try to race them against the bigger twins and then just take the DQ sinnce ours is not a twin. Performance on paper wise I think that is where the bike belongs. We can also enter it in middleweight on the tighter, more technical tracks. If the race orgs all adapt a class for this bike I bet other manufacturers will be inclined to launch a competing bike in the near future.
Thanks for the nuanced review. Looking forward to picking up my ZX-4R SE next week.
Any thoughts on how the bike would handle being geared down for street torque -1/+1 or -1/+2?
The bike already comes geared very low. I wouldn’t go lower.
@@lancemorgan2187 thanks for the feedback. Do you shift down to first year for hairpin turns? There's a lot of really tight roads where I ride, so that's why I was thinking of gearing down
@@dblv if I’m just riding at a normal pace I usually go through turns in 2nd but if you wanted to be riding more spirited you could go down to 1st.
Really detailed review but one thing I would like to point out is the foot clearance issue is solely due to you having a more relaxed body position and its a rider side fault. As someone who races and does track days very frequently. your toes are way out of the foot pegs which tells that you are not that used to the aggressive/race foot positioning. From what I've seen this is the perfect bike to get into track racing/riding for any beginner riders.
This must be the funniest comment i read all week.
@@TSTindustries might be funny to you if you are a bigger rider and feel cramped because of that and its understandable. I'm 5'7 and had no issues with the rc390 foot rest during trackdays or when racing in the stock category, and it has one of the worst footrest for a stock bike for trackdays. Would even understand if you said that a stock R3's pegs scrape which it does at higher leans, but doing that on a ZX4RR, its solely on the rider positioning unless you are doing GP rider laptimes and lean angles which pretty sure none of us are!
Very nice, I waited for this
Thanks for the view!
The stock tires is Dunlop sportmax gpr300, not Bridgestone 13:24
Maybe on your bike, but not ours.
Almost all US bikes , the stock tire is dunlop sportmax gpr 300
nice review! do you think its fast enough? in comparison with a ktm duke 890gp? thank you very much
Fast enough as in top speed? That is a subjective question, and depends on the purpose.
Are you guys going to tune the new yoshimura?
At the moment Yoshimura only offers a slipon exhaust so it is not worth tuning that. Our stock exhaust unrestricted tune will be just fine with any slipon. The next two we are doing consecutively are Graves and M4. Our custom Graves header with four bungs should be here Friday so we should start on that next week.
nice exhaust! what model is that?
Hi, did you change the air filter or its the OEM?
We used the MWR filter
dream bike
And here I am, wanting to already trade mine in with 300 miles on it.
@@kmpaton Why?
@@kmpaton maybe you have more cash to afford higher end models.
Great video! Im glad you gave your honest thoughts and review it for what it is. Too many people are quick say its too expensive might as well get a zx6r. I dont think it was meant to take over the world lol
At this point there are no real comparable bikes so comparing this to a 600 does not make sense. If and when other manufacturers come out with comparable bikes we can start comparing. It is a whole different clas sof bike. We are hoping that a racing class emerges for htis bike and that may draw out the likes of Yamaha, Honda, Suzuki to make a machine capable of competing with the ZX4RR.
@@TSTindustries Well said!! I hope other manufacturers make bikes like the 4rr.
Great review
Thanks for the feedback!
Awesome, hope i get to try it out soon. It is always a shame when they make a bike like this too street oriented. Its inconvenient on the street anyways just make it as race as possible 😅 its such a waste of money to have to replace everything.
Nine out of ten people will be using the bike on the street so Kawi had to do what they did. I just wish they had a version with no ABS to choose. Paying extra for a system I will have to put effort to eliminate is one of the thuhmbs down points.
What track?
Roebling Road Raceway in Georgia.
I don't see any reason for this bike to be sold in the US. The 400 is an awesome bike for a lot less money. For the price of the 400rr I would just spend the extra money and get a 600. I hope you prove me wrong can't wait for future videos
I bought it because I wanted a 4cyl engine, but was not ready for 600 power. I love the bike. Sure, its a bit overpriced, but It checked all of my boxes.
A 600 is harder to exploits fully on the street without risking jail or your licence. Here you can get the full experience without problems. It's fast enough and a 600cc 4cyl is more expensive. In Europe it's 3000€ cheaper than a zx6r, for 80hp vs 120hp.
Oh and it's lighter than your typical 4cyl 600cc. A zx6r is 210 kg, the zx4rr is 190.
Because you're stupid
This is made for people who are passionate about riding track and wanted something similar to a 600 but smaller so easier to practice on and finetune your riding. This isnt meant for riders who want more power for every $ spent. If its not made for you then move on and get the 600. Kawasaki isnt begging people like you to buy this
The 400/4 is its own sort of mythical beast. Not as fast as a 600, but arguably more fun in most situations.
The price is, what the price is, who else is making a 400cc inline 4 that has all the same tech as the bigger bikes ?!, No one yet, and this bike will still hold good value, and over the years will be worth more, that's the whole point of rarity items.
Sure, it doesn't have 100+ hp to the ground right out of the box, it's not hitting 190+ mph speeds, but that's not the point of it, and why there's many different bikes out there for different purposes at different costs.
My opinion, this is a bike you buy, ride it every now and again, and have a different bike that makes up for what you really want, or you buy two.
I think its the initial hype of the bike, honestly after going through the specs the only thing that is its selling point is the inline 4 but its still a 400. Considering the Honda 650 is also available in the same cost the bike is over priced. When I looked at it logically this bike didn't make sense. As I could get the ninja 400 and it can do whatever this bike could do with a fraction of the cost or I could go for the larger Honda. Asking $10,000 for a 400 doesn't make sense, kawasaki should bring down the cost of this product as the cost itself is one of the reasons not to go for this bike.
So in other words it costs way too much for what you get.
That's subjective for sure. Right out of the crate for 90% of the street riders, this bike is as close to perfect as one could ask.
Tooo heavy. Almost same weight like zx6r.
The weight of this thing is embarrassing and totally ruins it. Typical Kawasaki
A lot of that weight can be shed pretty easily. Most of the street homologation components on this bike are developed in a very cost effective way that uses heavier and cheaper materials. Kawi did this most likely knowing that they have to include those parts for homologation but most owners will be pulling them off.
@@TSTindustries While I understand your point here given the price Kawasaki is asking I (and everyone else) should expect more honestly.
I mean this little bike weighs as much as an R7!!!
Like everyone has said, this bike is meant for track riding. And when a bike becomes a track bike itll be shedding a lot of weight since everyone is throwing money into it to build it. Kawasaki isnt begging people to buy this. It sells itself to actual racers and avid track riders. Youre obviously not one so go buy an r7
Eh, not really. It’s not much heavier than the old Yamaha FZR400. Throw on a pipe and a lithium battery and you’re comfortably under 400lbs without the inertia from a heavy crank.
Not worth the money buy a reg 400 and have somebody make you a few r's lol
I was looking at this bike then came across a 22 zx6r with 6k miles for 8k happy with my purchase 2 weeks in.
The rarity makes it worth it
@@duck8280 wait a few yrs and pick one up cheaper then a brand new 636 no way I would spend 10k or more on a 400 with 60hp But that's just me
@@russianbot3172 75 HP* tuned ;D
You don’t need a 600 for the streets lmao- perfect little bike
@russinbot3172 Although I respect your opinion in the first part of your comment, I can't agree with the second part. We own two N400, this ZX4RR, plus a whole arsenal of other modern bikes for street and dirt ranging in size from 125cc to 1000cc. That little ZX4RR provides some emotions the other bikes do not.
Yes Sir, that is a Cool Bike!
It sure is.