August 25th, 2015, 10:10 AM | #1 |
ninjette.org member
Name: red
Location: KL, Malaysia
Join Date: Nov 2011 Motorcycle(s): ninja 250r Posts: 34
|
Ninja with a different wheel
Hi everybody,
Since we allo knows that the Ninja didnt have that much power, weight loss is a good idea. lighter wheel is the common /most sensible mods, but i dont see anyone having a different wheel in their Ninja. Did Anyone have done it? I want some details of the new wheel weights if possible, as the standard one is more than 12kg with rim mounted, sprocket and disc. |
|
August 25th, 2015, 10:18 AM | #2 |
Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
|
Reducing weght increases acceleration, but does nothing for top speed.
Reducing weight far from the axis also reduces the resistance to rotation (moment of inertia = m*r^2); for that reason reducing weight of tires and rims is more significant than reducing the weight of brake discs or sprocket. http://www.engineeringtoolbox.com/mo...que-d_913.html
__________________________________________________
Motofool .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
|
August 25th, 2015, 10:40 AM | #3 |
ninjette.org guru
Name: Kurgan
Location: Texas
Join Date: Aug 2011 Motorcycle(s): '09 Ninja 250R Posts: 265
|
The shop that just tuned my bike had a set of aluminum rims on display that would fit the 250R, I'm guessing the weight at between 5 and 7 pounds per rim.
They said the lighter rims would make the bike accelerate faster, turn easier, and stop quicker. All good things on a bike with so little power. The only real problem was the price.......$2200 for a front & rear set fully mounted and balanced. Basically he said that it wasn't worth it unless I was going to be racing on a track. |
|
August 25th, 2015, 01:22 PM | #4 |
EX500 full of EX250 parts
Name: Bill
Location: Grand Rapids-ish, MI
Join Date: Jul 2012 Motorcycle(s): '18 Ninja 400 • '09 Ninja 500R (selling) • '98 VFR800 (project) • '85 Vulcan VN700 (sold) Posts: A lot.
Blog Entries: 1
MOTM - Aug '15
|
According to this post, the stock wheels themselves are 4.60kg (10.1lb) and 5.30kg (11.7lb). Average tire weights to fit those wheels are 3.691 kg and 4.740 kg, to keep things in perspective.
https://www.ninjette.org/forums/show...749#post892749 has some wheel/tire weight info too. The bare VRossi wheels were 1.68lb lighter in front, but the wider rear wheel is 0.41lb heavier compared to stock. Short of spending a lot of money, you're not going to get major weight savings on the wheels. Even spending a bunch of money on really good wheels, you're still only saving a few pounds. The best place to trim weight is unsprung, rotating mass, and it's definitely an improvement (my bike sure seems to accelerate a bit more easily with the VRossi wheels), but you're talking about half the bike's MSRP. Most people simply don't think the results are worth the price.
__________________________________________________
*** Unregistered, I'm not your mom and I'm not paying for your parts, so do whatever you want with your own bike. *** |
1 out of 1 members found this post helpful. |
August 26th, 2015, 03:39 AM | #5 |
ninjette.org member
Name: red
Location: KL, Malaysia
Join Date: Nov 2011 Motorcycle(s): ninja 250r Posts: 34
|
Yeah, i'm glad we all were in the same page, my concern is killing laptime.
I forgot to mention that i raced with the Ninja and with the regulations so strict that we must race the bike in 'showroom condition' i have to look elsewhere to fight with those big teams that race that have the bike setup worth a zx6r,which still looks 'showroom condition' My bike currently resides at 146kg wet (after race weight). I didn't weigh the bike with another scale than the one provided by the scrutineering, but that is the one that counts. |
|
August 26th, 2015, 05:06 AM | #6 |
Freedom for Germany
Location: This World
Join Date: May 2011 Motorcycle(s): Ninja 250R-FI Posts: A lot.
|
Red with a weight of 146 kg wet you'd at least reach the best value already
It only makes me wonder what all you'd take away since that's around 25 kg down? |
|
August 26th, 2015, 05:23 AM | #7 | |
modaholic junkie
Name: Nick
Location: Athens, Greece
Join Date: Sep 2012 Motorcycle(s): 2001 ZX-12R, 2009 ninja 345cc and plenty of others in the past... Posts: 438
Blog Entries: 2
|
Quote:
maybe you should look for some other kind of upgrade for making better lap times (tyres, suspension, brakes, engine, electric etc...) For example... I am currently experimenting with an electric water pump off a piaggio scooter that seems to let more power from the engine reach the rear wheel... have just began cathcing up with my project again, will update as soon as I have solid results... Since you have lights removed and only need charge for the fuel pump, injectors and PC V, if the race is below 15km of distance you could run it on a 12pack or more Li-ion battery with the stator/rotor assembly (and maybe the starter too) removed for some extra quick revving and a few extra torque... Imporatnt weight saving could come from a plastic stock-looking fuel tank... but it is difficult to make and costly...
__________________________________________________
If noone has tried it before, I will !!! |
|
|
August 26th, 2015, 10:00 AM | #8 | |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
|
Quote:
|
|
|
August 26th, 2015, 04:11 PM | #9 |
modaholic junkie
Name: Nick
Location: Athens, Greece
Join Date: Sep 2012 Motorcycle(s): 2001 ZX-12R, 2009 ninja 345cc and plenty of others in the past... Posts: 438
Blog Entries: 2
|
well that would be an interesting option Bruce !! hope you will find it, still fiddlling with fitting the ZX-6 moving parts on the crank and block, so take your time and try to find it, please... thank you in advance for the assistance !
__________________________________________________
If noone has tried it before, I will !!! |
|
August 26th, 2015, 05:47 PM | #10 |
Freedom for Germany
Location: This World
Join Date: May 2011 Motorcycle(s): Ninja 250R-FI Posts: A lot.
|
Congrats Nick, that's a great plan - the electric waterpump means min. 3 hp more.
The Bosch nr. is 0 392 020 024, good luck for your project And a word about the Diesels, since they have a much higher efficiency than a benzine engine the problem is that they don't become so warm/hot and therefore they need as an addition the electric waterpump or better an auxiliary heating. |
|
August 26th, 2015, 05:59 PM | #11 |
ninjette.org certified postwhore
Name: .
Location: .
Join Date: Feb 2011 Motorcycle(s): . Posts: Too much.
MOTM - Feb '13, Feb '14
|
...benzine engine?
|
0 out of 1 members found this post helpful. |
August 26th, 2015, 06:35 PM | #12 |
ninjette.org member
Name: geno
Location: granite city
Join Date: Oct 2013 Motorcycle(s): gsxr 750, sv650, 250 ninja Posts: 110
|
we have the bosch pumps on our bikes , they work great, drill 2 small holes in thermostat to prevent dead heading pump
|
1 out of 1 members found this post helpful. |
August 26th, 2015, 06:47 PM | #13 |
Freedom for Germany
Location: This World
Join Date: May 2011 Motorcycle(s): Ninja 250R-FI Posts: A lot.
|
Thanks Chon to remind me, yes the right name is: Ottomotor
|
0 out of 1 members found this post helpful. |
August 26th, 2015, 07:01 PM | #14 |
ninjette.org certified postwhore
Name: .
Location: .
Join Date: Feb 2011 Motorcycle(s): . Posts: Too much.
MOTM - Feb '13, Feb '14
|
Good grief, stop being an asshat, rowland. I was asking a question. I've never heard a gas engine referred to as a benzine engine so I asked...
|
0 out of 1 members found this post helpful. |
August 26th, 2015, 07:40 PM | #15 | |
ninjette.org member
Name: red
Location: KL, Malaysia
Join Date: Nov 2011 Motorcycle(s): ninja 250r Posts: 34
|
Quote:
some more things that is in my list is the front stay from motoholders, and the wheels. Suspension have been upgraded with gsxr shock-complimentary from the write-ups here, and heavier front spring with the new 146kg |
|
|
August 26th, 2015, 07:43 PM | #16 | |
ninjette.org member
Name: red
Location: KL, Malaysia
Join Date: Nov 2011 Motorcycle(s): ninja 250r Posts: 34
|
Quote:
|
|
|
August 26th, 2015, 07:46 PM | #17 | |
ninjette.org member
Name: red
Location: KL, Malaysia
Join Date: Nov 2011 Motorcycle(s): ninja 250r Posts: 34
|
Quote:
|
|
|
August 27th, 2015, 03:07 AM | #18 |
modaholic junkie
Name: Nick
Location: Athens, Greece
Join Date: Sep 2012 Motorcycle(s): 2001 ZX-12R, 2009 ninja 345cc and plenty of others in the past... Posts: 438
Blog Entries: 2
|
well, can't argue with that !!
__________________________________________________
If noone has tried it before, I will !!! |
|
August 27th, 2015, 03:13 AM | #19 | |
modaholic junkie
Name: Nick
Location: Athens, Greece
Join Date: Sep 2012 Motorcycle(s): 2001 ZX-12R, 2009 ninja 345cc and plenty of others in the past... Posts: 438
Blog Entries: 2
|
Quote:
well what you say about the diesels I don't quite understand it, but to ask in simpler words, do you think there are drawbacks with this option ?? or something I should be careful of ?
__________________________________________________
If noone has tried it before, I will !!! |
|
|
August 27th, 2015, 03:17 AM | #20 | |
modaholic junkie
Name: Nick
Location: Athens, Greece
Join Date: Sep 2012 Motorcycle(s): 2001 ZX-12R, 2009 ninja 345cc and plenty of others in the past... Posts: 438
Blog Entries: 2
|
Quote:
but I do not understand what you mean by "dead heading pump" is that some kind of problem ?
__________________________________________________
If noone has tried it before, I will !!! |
|
|
August 27th, 2015, 04:03 AM | #21 |
Freedom for Germany
Location: This World
Join Date: May 2011 Motorcycle(s): Ninja 250R-FI Posts: A lot.
|
Red I'm not sure if someone's done this mod up to now, but I guess nobody did...
If I still would live in Germany I'd have done it long ago. Nick, there must be no fear about drawbacks, the only risc I see is that the pump is not working and you won't realize that while riding. Some guys in Germany did this with bigger bikes and from what I'd read in most cases the raise in power was up to 4 hp (different from bike to bike), so I think for the Ninjette also 3 hp should be possible. But maybe genosr1 could give some more detailed information? I would install it with a switch and turn it on after the engine's running and after turning the engine off I would let it run for 30 to 60 seconds longer. About the Diesels you must know that the heater is never as warm as with the Ottomotor, so you need a second system to get the inside of the car warm. A car with a Diesel in Germany or another northern country in Wintertime without this secondary system will not be very different to a refrigerator. |
|
August 27th, 2015, 12:32 PM | #22 | |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
|
Quote:
Geno's the guy who turned me on to this, he may be able to supply a part number. |
|
|
August 27th, 2015, 06:53 PM | #23 |
modaholic junkie
Name: Nick
Location: Athens, Greece
Join Date: Sep 2012 Motorcycle(s): 2001 ZX-12R, 2009 ninja 345cc and plenty of others in the past... Posts: 438
Blog Entries: 2
|
thank you all for the very interesting info !! An electric pump is schedjuled !!
I think RacerX has been running his bike on one...
__________________________________________________
If noone has tried it before, I will !!! |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Fix for front wheel squeak noise/Front wheel removal | cuong-nutz | 2008 - 2012 Ninja 250R Tech Talk | 13 | April 23rd, 2014 12:25 PM |
250 ninja front wheel and 300 ninja front wheel | JasonG134 | 2013 - 2017 Ninja 300 Tech Talk | 2 | March 30th, 2014 09:12 PM |
[roadracingworld.com] - Wheel Jockey Wheel Rotation Tool | Ninjette Newsbot | Motorcycling News | 0 | March 4th, 2013 08:50 PM |
[sportrider - latest stories] - Wheel-to-Wheel AMA Pro Flat Track Action Returns to S | Ninjette Newsbot | Motorcycling News | 0 | September 26th, 2012 04:00 PM |
[sportrider - latest stories] - Wheel to Wheel AMA Pro Flat Track Action Returns to S | Ninjette Newsbot | Motorcycling News | 0 | September 24th, 2012 06:40 PM |
Thread Tools | |
|
|