Honda CBR650R, from 15 to 14 teeth JT sprockets. To make it accelerate faster.
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- čas přidán 5. 09. 2024
- You can buy it here on ebay.
www.benl.ebay....
JT Sprockets catalogue : Honda CBR650R 2019
www.jtsprockets...
Torque settings : Front sprocket =54Nm
Torque settings : Rear wheel = 98Nm
Haynes manual : 6461
www.amazon.nl/...
I did it the other way on my Vstrom 650. Got an aftermarket 51t rear with stock 15t front. VERY good. And I can easily go back to stock by switching to a 17t front and don't have to change the chain anymore.
This was helpful, Jan. Thank you.
very good .thank you
I found your video very informative. Thanks
Mine is 33,000 Km and my chain is still in perfect condition.
Not sure if that is normal, as you mentioned changing yours at only 20,000 km.
Hello, with my previous bike, the honda cbr600fa PC41 from 2011, the chain and sprockets always were worn out at about 20.000 km.
At this moment i have 22.000 km on the 650R and the chain is still good. But maybe i will be replacing it this year, at the end of the year. Spark plugs i will replace in 2.000 km (it is a 24.000 km maintenance item)
im in same boat, chains in good nick, and same km as you 33,000km. Adjusted and it still in green zone good tension and working well. Will replace when needed
Besser hinten 3 Zähne mehr, als vorn 1 Zahn weniger,. Sonst wird die Kette zu lang, um später mal nachzuspannen.
Das mag durchaus stimmen. Das Hinterrad ist nun etwas nach hinten gewandert.
If you change the Sproket, the ECU can not correct calculate the Speed. With the 14 Sprocket, the Dashboard will show a higher Speed as real.
And the smaller Sproket will not help for better Accleration in the Gear 6 because the Ignition Timing limite the Power.
Speed is usually calculated from the front wheel and what are you talking about with ignition timing? Changing the gearing ratio in this way increases rear wheel torque and therefore increases acceleration but reduces the top speed in each gear i.e. if you could go 110km/h in first at redline, with this change now you will only be able to do 102km/h. This will also slightly increase fuel consumption.
@@The.JZA.
A CBR650 calculate the Tacho Speed not from the Front Weel.
You can cut off the ABS Fuse and you will see by yourself.
The Speed is calculated by the ECU with Motor RPM, the Transmission, the Gear and the Reartyre.
And in the ECU are different Mappings for Injection and Ignition by different Gears programmed.
The most Power have the first 4 Gears and Gear 6 is an Overdrive Gear, long Transmission, late Ignitiontiming, less Fuelinjection.
@@rolandrieser2828 Interesting. Thanks for the info! I wonder why they didn’t calculate speed from the front wheel. That’s how most motorcycles calculate the road speed.
@@The.JZA.
The ABS is separeted from the ECU and the Frontweel have only a ABS Sensor.
All modern Hondas i know, calculate the Speed with RPM and Transmission.
@@rolandrieser2828 So you can’t recalibrate it if you change the gearing?
Are the gears shorter with the sprocket? How happy are you with it?
Hi, what year model is your bike? I heard from multiple people that 2022 bikes onwards do not read the speed from the transmission but from the ABS sensor in the rear. No idea if that's true or not
Hello, my bike is a 2019. For bikes onwards 2022 if the read the speed from the abs sensor i can not say.
Has anyone had maybe 2 to 3mm play after fitting this to the cbr650 definitely got the correct one, i bought the standard one and also the -1, when fitting the -1 front there is lots of play left to right when torqued up properly, when putting the new standard one on it fits perfectly with no play at all, even tried turning it around the wrong way and its the same, any ideas? Dont like the idea of that movement on the shaft with the -1
Great video thank you mate. Where did you buy the service manual from please as dealers dont seem to sell it? Thanks
Hello, i bought it from amazon.nl
www.amazon.nl/Honda-Cb650f-Cbr650f-Cb650r-Cbr650r/dp/1785214616/ref=sr_1_1?__mk_nl_NL=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=60G2X5YVZUAQ&keywords=haynes+6461&qid=1697789736&sprefix=haynes+6461%2Caps%2C77&sr=8-1
Greetings.
Only in english.
is it ok that new sprocket is without rubber demfer in middle as original 15t sprocket?
Yep, it is perfectly ok, works perfect. No problems are wathever with it.
Drives the same like the orginal one (with the rubber) only it accelerates faster. And top speed dropt.
I tested the top speed. Only 197 km/h on gps now.
Is you bike still restricted though?
@@NickToneguzzi-mw3ow Of course, this JT sprocket is available especially for the cbr650r
how is the vibration on yours?
my cb650r vibrates hugely
Hello, on the elbow of my right arm, i have also a little bit pain of vibrations. So indeed, also mine vibrates a lot.
Mine does the same
Above 4k rpm its insane…
My old hornet did run 129393000 times smoother then this one.😢
@@Jacksteelmachines Hello, my old 2011 Honda CBR600fa PC41 did also run smooter and faster. Probably by wat the engineers had to do to pass emissions anno 2019.
Hi, can you tell me the time to attain 0-55kmph gps after the modification?
Hello, not yet tested it. I think about 3,6 sec
Did you notice a big difference in acceleration ?
I think it accelerates about 7% faster. From 0 - 100. Front wheel lifts a little bit with fast start.
Where did hou buy this,you have link
Hello, i bought it on ebay.
Here you can find it.
www.benl.ebay.be/itm/284415890523
A couple of questions, do you know roughly the added acceleration for 0-60 and how much does it take off the top speed. With having a smaller sprocket is there added stress on the chain as it required to make a tighter turn
Hello, i have done a few tests before and after replacing the front sprocket.
Original
50km/h on dash = 45 on GPS
70 = 65
90 = 84
With the front sprocket changed
70 km/h on dash = 63 km/h on GPS
90 = 75 on GPS
Top speed i did not test. I will do so in spring or summer time on german autobahn.
JT sprockets does provide 14 / 15 / 16 for the front for this bike, so it is no problem to do so.
@@JanSV perfect, thank you!
@@JanSV and for the rpm ?
@@yasdnil97twoo Hello, i have not checked that.
@@JanSV Isn't the speed sensor on the wheels?
Hello! Did this change make the gearing longer? Our bike cant get through an interaction turn without needing to shift into 2nd with the stock configuration. Thank you!!
I actually only notice that he accelerates faster. I suspect that I shift slightly earlier than with the original ratio. But I myself had no problem with choosing which gear to enter a corner in either ratio. It should only have 25 to 30 hp more and a little less vibration in the steering wheel, sometimes my right elbow hurts. Driving many kms in a few days.
@@JanSV HP? Changing gearing doesnt affect HP. It does affect rear wheel torque and the change you made will slightly shorten the gears i.e. if you could go 110km/h in 1st before, now you will only be able to go 102km/h but with slightly increased acceleration.
Sell the bike and Just buy the CBR1000RR!!!!!! Wasting time to get more performance on a CITY BIKE, this motorcycle it wasn’t made for “speed” it was made for comfortable ride! next video just slap a new exhaust system😖😖😖😖😖 and BTW I have the same bike cbr650r! She is perfect the way was designed
At the gent moto meeting one week ago i asked the honda dealer when the cbr600rr will be back. He said, ask me questions i can answer. (the cbr1.000rr is overkill for me) so the 600RR you could not buy anymore from 2017 (last year you could buy it new in europe was 2016) Because of emissions. This 95hp is not enougd, new exaust only gains 3hp, so that is not worth the 1,2K€.
Buth indeed it is a beautifull bike, everyone tells me also. But 120 or 130hp is ideal.
@Jorge Vera HA what a load of bollocks what are you talking about
Personally I have no interest in a bike with alot more than the 48hp I currently ride. You can't go fast anywhere anyway. And the Autobahn is boring (because you're just riding in a straight line).
I'm also hard considering the 650r, or maybe just swap my cb500f for a newer cbr500r (which I can't redline for shit either since the bike does 90kmh in 2nd.)
@@itstherealjammin I think there is some sarcasm in the guys comment
@@JanSV You can buy the new 600rr from the US or Asia and Import it over to Europe, was thinking of importing the Kawasaki ZX25rr, but now we're getting the zx4r in Europe 🤩🤩