September 11th, 2015, 01:03 PM | #1 |
ninjette.org member
Name: Jimmie
Location: Durant, OK
Join Date: Sep 2015 Motorcycle(s): 2012 Ninja 250R Posts: 15
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2012 Ninja 250R Sprocket Change
I am thinking about changing sprockets on my ninja 250R but ive heard good and bad things about it. Any opinions? I use it for work and school and just general cruising around.
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September 11th, 2015, 01:16 PM | #2 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
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A common upgrade is +1 on the front sprocket. It's easy, inexpensive to do, and if your not happy, can be easily switched back. It's enough of a change to make a difference, but not too much to have too many negative effects.
One must keep in mind that the Ninjette loves RPMs, so don't worry about them. I've done the +1 on both my Ninjette and EX and I'm happy with the results, as I use them both for community mostly.
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September 11th, 2015, 01:41 PM | #3 | |
Daily Ninjette rider
Name: Hernan
Location: Florida
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Quote:
If so, what are the bad things that you have heard?
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September 11th, 2015, 03:25 PM | #4 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
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It's a choice that each individual rider must make. If you want to cruise at a lower RPM, then bumping the front sprocket up one tooth is good. The trade-off is that the acceleration will be a little slower.
(I ran my Ninjette with one additional tooth in the front and one less tooth in the back and was happy with it). |
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September 11th, 2015, 04:45 PM | #5 |
ninjette.org member
Name: Mike
Location: Grand Forks, ND
Join Date: Aug 2015 Motorcycle(s): 2009 250R, 2014 CBR650F Posts: 46
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With the +1 sprocket change, what is the change in RPM's at 70 mph? I understand the 250 likes to rev, but my hand goes numb at 9k rpm after about 10 minutes. I suppose it's something I could get accustomed to after a while but I'm reluctant to try again (noob).
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September 11th, 2015, 05:04 PM | #6 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
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It's about 600 or so RPMs.
As far as vibrations goes, you could try heavy bar ends. https://www.ninjette.org/forums/blog.php?b=8348 Also better grips, Pro Grips brand are a good choice. Another thing is try relaxing your grip, most noobs grip the too tightly, often called death grip.
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. |
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September 11th, 2015, 06:14 PM | #7 | |
ninjette.org member
Name: Mike
Location: Grand Forks, ND
Join Date: Aug 2015 Motorcycle(s): 2009 250R, 2014 CBR650F Posts: 46
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Quote:
I remember you've given me advice before Ghostt, and it's much appreciated! There are great people on this forum. I was actually thinking about the death grip when my hand went numb. I loosened my grip a bit but at that point, I wasn't too far from home. I suppose I need to just go try another highway run. Unfortunately, the mornings here are already dark and a bit on the cool side already. Was 42 degrees this morning. Brr. |
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September 11th, 2015, 06:23 PM | #8 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
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My numbers might be a little off, so check out this link http://www.gearingcommander.com/ and see for yourself.
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. |
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September 11th, 2015, 06:44 PM | #9 |
Rev Limiter
Name: Jay
Location: WI
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September 11th, 2015, 09:03 PM | #10 |
ninjette.org guru
Name: Kevin
Location: central Illinois
Join Date: Apr 2011 Motorcycle(s): 2011 Green 250R Posts: 346
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September 12th, 2015, 08:35 AM | #11 |
ninjette.org member
Name: Jimmie
Location: Durant, OK
Join Date: Sep 2015 Motorcycle(s): 2012 Ninja 250R Posts: 15
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Havent been on in a day guys sorry but I read all the replies so a front +1 and a rear -1 tooth? Correct?
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September 12th, 2015, 08:36 AM | #12 |
ninjette.org member
Name: Jimmie
Location: Durant, OK
Join Date: Sep 2015 Motorcycle(s): 2012 Ninja 250R Posts: 15
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I go about 40 miles or so to school everyday and then to work so maybe itll help with gas mileage?
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September 12th, 2015, 10:35 AM | #13 |
Wannabe Reborn
Name: Unregistered
Location: Cincy Ohio
Join Date: Mar 2009 Motorcycle(s): Blue 2008 Ninja 250 Posts: 302
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+1 front and -1 rear will help bring the RPM's down at cruising speed. Will back off the acceleration, but will add a couple of MPH on the top end. Should help with gas mileage. Will be more cruising friendly. Relatively easy upgrade, sprockets could be had in Amazon for less than $100 total.
I highly recommend the +1 in front. Makes it more rider friendly.
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September 12th, 2015, 12:07 PM | #14 | ||
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
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Quote:
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The savings of getting 62 MPG instead of 60 MPG is negligible, however. If you ride 10000 miles per year, that represents a 5 and a half gallon savings. |
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September 12th, 2015, 12:23 PM | #15 |
Fast-Guy wannabe
Name: Jason
Location: Brentwood, Ca
Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot.
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I originally had 15-42 but I use 15-41 now and like it a lot. I have no problems in slow traffic or city driving but most of the time I'm averaging between 70-80mph on most of my rides. 15-41 is almost a 1-100 ratio so at 80 mph your just a hair above 8000rpms.
I recommend trying the 15t first because it's only $15 then if you like the change and want more you can drop 2-3 teeth from the rear. 15-45.....15-41 can all be used with stock chain length and reasonably sized tires. |
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September 12th, 2015, 06:10 PM | #16 |
Rev Limiter
Name: Jay
Location: WI
Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot.
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September 12th, 2015, 06:26 PM | #17 | |
Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
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Quote:
Same for me too. And haven't looked back. Bike doesn't struggle one bit at hwy speeds. |
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September 13th, 2015, 08:42 AM | #18 |
ninjette.org member
Name: Jimmie
Location: Durant, OK
Join Date: Sep 2015 Motorcycle(s): 2012 Ninja 250R Posts: 15
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Thanks for the info guys. So best bet for lowering RPMs on the highway is to change both?
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September 13th, 2015, 09:22 AM | #19 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
Blog Entries: 25
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Yes, but lower too much will effect the acceleration, it's a trade off.
I personally run 15/43 set up, and 130/90/16 tire, @ 70 mph it's about 7,500 RPMs. It's not as snappy off the line, but it's not too bad. If I need to pass in a hurry(passing zone area) I generally will downshift to 5th. I rode about 700 miles on the interstate from Kentucky to North Carolina coast, and it wasn't issue as I was going about 80mph, which was about 8,500 RPMs
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. |
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September 13th, 2015, 11:03 AM | #20 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
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September 13th, 2015, 11:27 AM | #21 |
sammich maker
Name: snot
Location: West Ohio - in the kitchen
Join Date: Feb 2012 Motorcycle(s): 2013 white 300, 09 KLX 250 SF, 09 thunder blue 250(traded) Posts: A lot.
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+1
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September 13th, 2015, 06:13 PM | #22 |
ninjette.org member
Name: Fred
Location: St. Louis MO
Join Date: Jan 2014 Motorcycle(s): 1996 Ducati 900SS/SP 45k miles Posts: 132
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Ninja 2XXX,
I have a near new 15 tooth front sprocket I will send you for $30. PM me if you want it. I'm in STL so you will have it before the end of this coming week. Fred
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