February 27th, 2013, 10:09 PM | #1 |
ninjette.org member
Name: Jason
Location: Northwest FL
Join Date: Dec 2012 Motorcycle(s): 13 ninja 300, 04 crf 250, 06 yz125 Posts: 43
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Gearing
Has anyone tried a 16t front with the stock 42t rear or a 40t rear with a 15t front? Is there enough clearance to run a 16t front?
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February 27th, 2013, 10:31 PM | #2 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
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Dunno man... gunna be tight at the very least. Why not just run 15/42 or 15/41 and get very similar results?
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February 27th, 2013, 10:32 PM | #3 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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Oh! Stock rear is 45t.
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February 27th, 2013, 10:36 PM | #4 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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I myself run a 15/42 for street and for 1 track. If you search, you will find many riders that run similar gearing while still using the stock chain or a stock length chain.
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February 28th, 2013, 10:30 AM | #5 |
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Name: Yakaru
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March 1st, 2013, 08:23 PM | #6 |
ninjette.org member
Name: Jason
Location: Northwest FL
Join Date: Dec 2012 Motorcycle(s): 13 ninja 300, 04 crf 250, 06 yz125 Posts: 43
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stock is 14/42. Im running 15/42 now which is much nicer and want to try 16/42. It may hurt accelleration but Im running 50 miles of interstate each way to work so the lower rpm will help there. I just am not sure if there is room for a 16 tooth. They sell up to 17 tooth for the 250 so If the cases are the same it should fit. If not I can drop two teeth or more on the rear.
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March 1st, 2013, 09:26 PM | #7 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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I should have noticed what forum this is in. Fail
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March 1st, 2013, 10:46 PM | #8 |
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To fit a 16t in the 250, you have to shave off material to fit the sprocket.
I'm not sure if a 16t will fit in the 300 or not. Search for a rear with fewer teeth if you really want lower rpm's. How many rpm's are you turning at 65 with 15/42? |
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March 3rd, 2013, 02:00 PM | #9 |
ninjette.org member
Name: Jason
Location: Northwest FL
Join Date: Dec 2012 Motorcycle(s): 13 ninja 300, 04 crf 250, 06 yz125 Posts: 43
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from memory around 7k rpm.
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March 5th, 2013, 06:37 PM | #10 |
ninjette.org member
Name: Jason
Location: Northwest FL
Join Date: Dec 2012 Motorcycle(s): 13 ninja 300, 04 crf 250, 06 yz125 Posts: 43
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I ordered a 39t rear today. I could not find a 16t front for anything after 07. Should be about the same though.
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March 12th, 2013, 09:10 PM | #11 |
ninjette.org member
Name: Jason
Location: Northwest FL
Join Date: Dec 2012 Motorcycle(s): 13 ninja 300, 04 crf 250, 06 yz125 Posts: 43
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Put on the 39 tooth rear today (42 stock), (previously installed 15t front, 14 stock) and it is much nicer now. Can actually complete a left turn and accellerate some before shifting. I was able to roll on from 25 mph in 5th into my neiborhood which is uphill about 15 degree grade and go from 25 to 35 in short order so the bike has the torque to pull the taller gearing no problem. Starting from a stopsign uphill no problem. This is how it should have been geared stock.
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January 17th, 2014, 07:23 PM | #12 | |
ninjette.org newbie
Name: jean-pierre
Location: chicoutimi q.c. canada
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Quote:
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January 18th, 2014, 08:12 AM | #13 |
ninjette.org sage
Name: Jim
Location: NJ
Join Date: Nov 2012 Motorcycle(s): Ninja 300, KTM EXC610SMR Posts: 913
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I went to 15/39 for a few hundred miles.
For me, it was hitting the "too tall" end of useable gearing. I could ride it, but it was just a little much at my 200 lbs. and I'd not have enjoyed a passenger added to that in that gear ratio. I'd run it again if I was going across country on interstate (I hope that never happens!). I dropped it back to 14/39 and it is pretty much the same as 15/42 now. |
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