https://www.roadracingworld.com/news/kawasaki-launches-all-new-16000-rpm-inline-four-ninja-zx-4rr/
When this was originally announced it seemed like a long shot to actually hit production. I'm interested to see it in action.
I'm hoping the other manufactures will follow suit !
I've read a couple of articles as well as the official announcement at Kawasaki's website but have yet to see or read a HP #?
It's also looking a bit heavy almost 520lbs. 😳
EDIT: 420lbs not 520.
Still too heavy!
if thats true, thats about the same weight my 2014 cb1100 is now (with the aftermarket exhaust). either thats just wrong or insane on Kawasaki's part. talk about a bike that needs a deltabox frame. :burnout:
Claimed power is just under 80HP (for the EU version, should be similar here).
Torque is 26.5 lb-ft @ 11,000 rpm.
Weight (wet) is 414.5 lbs
ZX4RR KRT Edition is $9699 MSRP. That means the dealers here will have them tagged at about $11799 with ADM. :rolleyes:
420 lbs & 80 HP = FUN! :thumbs: I wouldn't be able to ride one with those ergos and my back but it is good to see Kaw release something besides the usual stuff. :gentleman:
Awesome. We missed out on 400 repli-racers the first time around (except the FZR), so it's about time!
Quote from: Evans Ward on February 02, 2023, 12:50:57 PM
420 lbs & 80 HP = FUN! :thumbs: I wouldn't be able to ride one with those ergos and my back but it is good to see Kaw release something besides the usual stuff. :gentleman:
I'm happy they are bringing it in, but my Aprilia RSV4 weighs basically the same. (At well over 2 1/2 times the HP)
They really should have at least used an aluminum frame/swingarm.
Quote from: busa1300 on February 02, 2023, 03:44:13 PM
They really should have at least used an aluminum frame/swingarm.
exactly. theres no excuse not to. that should be in the 345-360 range weight wise.
Yup. That was the real draw of the 80s and early 90s JDM race reps. The manufacturers dumped all their highest tech bits on the 250 and 400 cc bikes. Now, not so much.
kinda like when they made the sv650 go from 365 lbs in 99 to 430 in 2014. I literally gave the 430 lb one away. no-thank-you. :busey:
they should add a supercharger and change the name to H1 :righteous:
Ahem, I don't think "We" are the target audience!
actually, we are i'd think. we are a bunch of middle aged men with disposable income that see the value in a small cc 'replica' of sorts race bike.
I just think they should have done better chassis wise. :twocents:
Just outta curiosity if you really had to have this and don't like the weight could you lighten it up with a motor swap?...say a KX500 motor? :clint:
I guess I figure one reason where it can weigh a bit more is all the extra electronics to sort out epa compliant fuel delivery on a modern four stroke.
How much, I don't know but I would think an aftermarket exhaust and rear fender eliminator would drop some decent weight.
oh that would have to be at least 35 pounds lighter with those mods...
stuff that motor in an nsr frame. :whistle:
Quote from: m in sc on February 03, 2023, 10:06:30 AM
actually, we are i'd think. we are a bunch of middle aged men with disposable income that see the value in a small cc 'replica' of sorts race bike.
I just think they should have done better chassis wise. :twocents:
I agree. Me and my riding mates have been pining for small displacement multi-cylinder motors for years. We are all in that demographic. The generic 4-stroke twin cylinder motor leaves us cold. Bring back the 400 arms race! I'm personally waiting for Yamaha to launch a 400/450 three cylinder - baby sibling of the FZ09/XSR.
oooh a 400 triple would be sweet indeed. :olaf:
There was a story about it in the weekly Cycle World Sunday Best email
2023 Kawasaki Ninja ZX-4RR KRT Edition Coming to the US; Four-cylinder 400cc sportbike forbidden fruit no more!
UPDATED: This article was updated on February 2nd, and now includes horsepower figures that were previously not available to us.
https://www.cycleworld.com/motorcycle-news/kawasaki-zx-4rr-krt-edition-coming-to-usa-2023/
"...our European correspondent informed us that the UK press kit lists power at 77 hp (without ram air), and 80 hp (with ram air)."
Does anyone have some solid numbers for what a 90s 400 supersport weight was? I tried using the google machine and saw some conflicting numbers.
I got a little curious since weight was mentioned so much in this thread.
gsxr400 is between 350-365
fzr400 is in the same 350-360 ballpark.
Quote from: m in sc on February 06, 2023, 03:12:24 PM
gsxr400 is between 350-365
fzr400 is in the same 350-360 ballpark.
I'm guessing those are dry weights? I see posted wet weight of the fzr right around what the wet weight of the RR is.
Here's the official weight from my 1989 owners manual:
FZR400W 410 lbs.
FZR400SWC 417 lbs.
(with oil and full fuel tank)
this is where i shut up and listen.... doh.
:whistle:
The Canadian version is rev limited to 11500rpm due to noise regulation.
I went through my archives and pulled this out.
Thought it could be of some interest here.
(https://www.advrider.com/f/attachments/55b8832a-a1c8-4806-8bf5-d920f2d5caa8-jpeg.4559093/)
(https://www.advrider.com/f/attachments/ac045337-655c-4cc6-b006-cc628e66c13e-jpeg.4559103/)
(https://www.advrider.com/f/attachments/00cc49d5-ee5f-4891-a334-231b6388b462-jpeg.4559095/)
The 250's were restricted by Japanese government to 45 at the crank up to 92...in 93 they were limited to 40
And speed limited to 180 kilometers per hour.
Although when unrestricted they will easily put 60hp at the rear wheel (RGV-NSR) The 3MA is very difficult to tune.
(https://www.advrider.com/f/attachments/59f4233d-475a-4495-a94b-47a3e9936aad-jpeg.4559097/)
(https://www.advrider.com/f/attachments/9cd4be62-0daa-4176-a6d5-09a6ce6e2f0d-jpeg.4559099/)
(https://www.advrider.com/f/attachments/9701aa6c-f73f-4fb4-ad81-d5e84a8994b0-jpeg.4559101/)
(https://www.advrider.com/f/attachments/4cb43f10-fb00-40fd-ad6b-e5089b12f16a-jpeg.4559105/)
Quote from: m in sc on February 03, 2023, 05:57:34 PM
stuff that motor in an nsr frame. :whistle:
The NSR250 frame is the same as the CBR400RR. At that point you might as well just import one for the money it'd cost.