October 19th, 2010, 06:00 AM | #1 |
ninjette.org member
Name: Clint
Location: Niagara Region, Ontario
Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61
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Front sprocket, help!!
Hey guys and gals.
I know a lot of people have used the 15T sprocket to help bring the RPM down a little on the highway as well as making first gear a little more useful. What sprocket are you using as I have viewed the JT Sprocket website and they do not make a 15T for this model (08-10 250r). I dcided to use this sprocket once I ordered my R-0990 filter and Factory Pro Jet Kit. http://www.jtsprockets.com/52.0.html...sel_uid=963&p= I have searched and have found no definitive answer. If you have done this sprocket swap, I would love to hear which one you used. Also, can I still use the factory chain or does that need to be replaced as well? Thanks in advance!!! |
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October 19th, 2010, 06:02 AM | #2 | |
ninjette.org member
Name: Clint
Location: Niagara Region, Ontario
Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61
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Quote:
Duhhh! Just found this.. http://www.ninjette.org/forums/showthread.php?t=55430 Can anyone else that has done this swap that has a full exhaust, R-0990 filter and jetting inform me how their bike performs now compared to when it was stock? I do not want to slow the bike down with a 15T sprocket, I am hoping that the additional power from the above mentioned mods will over come that and make the top end a little better. |
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October 19th, 2010, 06:09 AM | #3 |
Ninjette CPT
Name: Vince
Location: jacksonville, fl
Join Date: May 2009 Motorcycle(s): Black 08 250r Posts: A lot.
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factory chain is fine.
here is the sprocket you need: http://www.motorcycle-superstore.com...-Sprocket.aspx |
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October 19th, 2010, 06:18 AM | #4 | |
ninjette.org member
Name: Clint
Location: Niagara Region, Ontario
Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61
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Quote:
The link you attached is asking me for what model, year, etc. When I click on Kawasaki 250r, it only goes up to 2007? Am I missing something? |
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October 19th, 2010, 06:21 AM | #5 |
Ninjette CPT
Name: Vince
Location: jacksonville, fl
Join Date: May 2009 Motorcycle(s): Black 08 250r Posts: A lot.
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pre-gen and new-gen are interchangable. pre-gen is what you want, (order the 07').
ride happy |
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October 19th, 2010, 06:23 AM | #6 |
ninjette.org member
Name: Clint
Location: Niagara Region, Ontario
Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61
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Thanks for clearing that up! Much appreciated!!
Does anyone have any input on the 15T swap after riding with it? |
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October 19th, 2010, 06:28 AM | #7 |
Ninjette CPT
Name: Vince
Location: jacksonville, fl
Join Date: May 2009 Motorcycle(s): Black 08 250r Posts: A lot.
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happy reading
http://www.ninjette.org/forums/showt...=sprocket+swap "search" is your friend...... btw, welcome to the forum |
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October 19th, 2010, 06:43 AM | #8 |
ninjette.org certified postwhore
Name: Jason
Location: Jacksonville, Florida
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Careful which one is ordered. MCSS doesn't show me a part #. Seems their website is not working for me right now. One has to be shimmed and one does not. Here's a link to one that doesn't require any shimmimg.
http://www.denniskirk.com/jsp/tpl/pr...=p80985&mmyId=
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October 19th, 2010, 06:45 AM | #9 |
Ninjette CPT
Name: Vince
Location: jacksonville, fl
Join Date: May 2009 Motorcycle(s): Black 08 250r Posts: A lot.
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jd,
the '07 JT is the one we installed on mine..... |
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October 19th, 2010, 06:48 AM | #10 |
ninjette.org certified postwhore
Name: Jason
Location: Jacksonville, Florida
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Yeah I figured since it was the one you were recommending. The DK site actually shows the one I linked to fit the pre-gens also. Just wanted to make sure the part # was verified prior to him ordering.
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October 19th, 2010, 11:54 AM | #11 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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those are parts # for the old gen...
new gen the thickness is 9.3mm... old gens the thickness is 8.8mm or 8.3mm... So to get it PERFECT, you need a shim. Some run without shim...but they're not perfect |
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October 19th, 2010, 12:17 PM | #12 |
ninjette.org certified postwhore
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Hmm... I may need to double-check myself I guess.
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October 19th, 2010, 12:23 PM | #13 | |
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Quote:
http://www.jtsprockets.com/52.0.html...el_uid=5001&p= Time to look for a shim I guess.
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October 19th, 2010, 01:22 PM | #14 |
IC2(SW)
Name: Kerry
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October 19th, 2010, 01:50 PM | #15 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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^^ If I buy any, I would check part # against JT's website to be sure...cuz pre-gens will fit...just diff thickness...unless you use shim of course.
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October 19th, 2010, 02:55 PM | #16 |
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I wonder if 1/2 a mm could really matter. My bike seems perfect...
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October 19th, 2010, 03:06 PM | #17 |
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October 19th, 2010, 03:15 PM | #18 |
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Ok...ok...
Anyone know where I can find a shim. My guess is it will be a $.42 part with $9 to ship.
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October 19th, 2010, 03:45 PM | #19 |
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http://www.cheapcycleparts.com/model...semblies/25721
or http://www.bikebandit.com/houseofmot...-250r/o/m17215 Part# 92200A-1389 (92200A is the common part number both retailers use - I think the full number is the "official" number). This is a splined washer that is used inside your transmission, but is also the perfect shim (also what I use).
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October 19th, 2010, 05:36 PM | #20 | |
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Name: Jason
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Quote:
1. Part listing only says "washer" How thick is it? 2. Part is on back-order 3. $15 for a washer... Maybe a new sprocket would be better
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October 19th, 2010, 09:22 PM | #21 |
self wrencher
Name: john
Location: houston
Join Date: Dec 2008 Motorcycle(s): 08 250r and 07 600r Posts: A lot.
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If I were doing it I'd buy it from local dealer for a buck or so. But if I install it already I wouldn't worry it. Def not going to pay $9 for shipping.
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October 19th, 2010, 11:20 PM | #22 | |
ninjette.org certified postwhore
Name: Bob
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Quote:
2) I know, it sucks.... I'm waiting on a break rotor, which isn't due until mid Dec. 3) It is insane what you pay for shipping for these little nothing parts, which is why it is usually best to wait until you have a substantial shippment, or use it as an excuse to buy a nice tool or accessory to justify shipping. And yes, it would be ideal to get the sprocket that is specific to the '08+, but if you are unable to get your hands on one and have to go with the pre-gen model, shoot me a PM... I'll hook you up.
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October 19th, 2010, 11:33 PM | #23 |
ninjette.org sage
Name: Jonathan
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I bought mine from here: http://www.solomotoparts.com/product...cat=319&page=1
it was same thickness as stock sprocket(measured with caliper), installed and worked perfect without any shim or washher . |
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October 20th, 2010, 05:35 AM | #24 | |
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Quote:
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October 20th, 2010, 06:09 AM | #25 |
ninjette.org member
Name: Clint
Location: Niagara Region, Ontario
Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61
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I think I am just going to buy the 43T rear sprocket that JT offers for the 08-up Ninjas.
I dont want to worry whether I have to shim or not.. Thanks for all the input. |
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October 20th, 2010, 06:31 AM | #26 |
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That will cost much more.
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October 20th, 2010, 08:11 AM | #27 |
ninjette.org Monkey Spank
Name: Kevin
Location: Illinois
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Swapping a 42T in the rear is the closest to a 15T front.
If your planning on fully modding the bike as described and you weigh less than 150 lbs a 41T is the fastest in the quarter mile. 175 lbs i would run a 42T. 200 lbs and I would run the 43T for the 1/4.
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October 20th, 2010, 09:37 AM | #28 |
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Name: Bob
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I have extra shims.
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October 20th, 2010, 11:46 AM | #29 | |
ninjette.org member
Name: Clint
Location: Niagara Region, Ontario
Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61
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Quote:
Still researching this... Actually, a 1mm shim would be almost factory spec. The 08-up front sprocket is 9.3mm thick, while the pre-gen is 8.5mm thick. So it is actually a .8mm difference between the two. I am definitely going to purchasing the pre-gen front 15t sprocket with the above mentioned shim. Thanks for the help guys!! |
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October 20th, 2010, 11:59 AM | #30 |
Join Date: Nov 2008 Posts: Too much.
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October 20th, 2010, 12:05 PM | #31 | |
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Quote:
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October 21st, 2010, 11:32 AM | #32 |
ninjette.org certified postwhore
Name: Bob
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If you couldn't order a shim from the same place (no additional shipping charge), send me a PM and I'll send you a shim.
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October 21st, 2010, 03:07 PM | #33 | |
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October 21st, 2010, 03:27 PM | #34 | |
Ninjette CPT
Name: Vince
Location: jacksonville, fl
Join Date: May 2009 Motorcycle(s): Black 08 250r Posts: A lot.
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Quote:
thanks, much appreciated. Jason (dubojr1, from above) actually put the catalog together - so he deserves the recognition. i look forward to doing business with you, pm me with questions about items, pricing, etc. thanks again! |
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November 14th, 2010, 10:52 AM | #35 |
ninjette.org member
Name: DJ
Location: DFW, TX
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The Drivenracing.com sprocket 1098-520-15T measures to 9.3mm if anyone is searching.
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