May 3rd, 2017, 04:33 AM | #1 |
ninjette.org member
Name: eric
Location: lompoc, ca
Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71
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Bike geometry
Currently have my forks 22mm above the triple on my 2010 250 track bike. Decided to mess with the rear height (stock shock) and ordered dog bones that raise the rear 1.25". Was wondering if any one else had similar numbers before testing it out at the track.
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May 3rd, 2017, 06:29 AM | #2 |
Track Clown
Name: Chris
Location: Kingman, AZ
Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot.
MOTM - Sep '15
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Stock shock?
What track? Stock forks? |
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May 3rd, 2017, 09:48 AM | #3 |
ninjette.org member
Name: eric
Location: lompoc, ca
Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71
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Stock rear shock, stiffer springs and thicker oil up front. Trying to get out to buttonwillow next week.
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May 3rd, 2017, 09:55 AM | #4 |
CCS Amateur #501
Name: Dave
Location: Iowa
Join Date: Jun 2015 Motorcycle(s): '09 250 SE 'Booger' Posts: 406
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Just curious what tires u runnin and your wt? Im going the opposite direction, ive got the front end raised up as high as I can and #3 on stock shock preload. Im on Evo S20 tires 110/140 and 230 lbs.
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May 3rd, 2017, 10:17 AM | #5 |
ninjette.org member
Name: eric
Location: lompoc, ca
Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71
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At the moment i have Alpha 13's 110/150 and weight 148lbs with no gear.
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May 3rd, 2017, 10:20 AM | #6 |
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
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By raising the rear that high you are drastically altering your swing arm angle which in turn is going to affect how the bike behaves once your in the corner as well as the acceleration out of the corner. It will do wonders for flick-ability with the front set at 22mm. speaking of which, is that measured at the front of the fork tube? If so that's right about where they need to be with proper rear ride height.
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May 3rd, 2017, 10:37 AM | #7 |
ninjette.org member
Name: eric
Location: lompoc, ca
Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71
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22mm measured in the middle where the triple pinches together.
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May 3rd, 2017, 01:52 PM | #8 | |
ninjette.org member
Name: Patrick
Location: NC
Join Date: Nov 2015 Motorcycle(s): DR350, Ninja 250 Posts: 69
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Quote:
I've got a pre-gen bike, but have a new-gen swingarm and shock & EX500 17" rear to install once I wear out the current rear tire. Will be swapping a 17" in the front, as well. From my understanding, EX500 dogbones are about the right length to get a 1-1.25" rise from the rear. Are you saying you'd drop to 22mm in addition to raising the rear the 1.25"? |
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May 4th, 2017, 03:48 PM | #9 |
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
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May 4th, 2017, 03:54 PM | #10 | |
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
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Quote:
Last futzed with by bruce71198; May 4th, 2017 at 03:55 PM. Reason: punctuation |
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May 4th, 2017, 04:15 PM | #11 | |
ninjette.org member
Name: Patrick
Location: NC
Join Date: Nov 2015 Motorcycle(s): DR350, Ninja 250 Posts: 69
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Quote:
What I want is for the bike to handle, and for there to be adequate ground clearance so that I can avoid dragging hard parts. I'm not fixating so much on how they get there so much as the end result. I plan to use it at the track, but not necessarily race... Just track days. I currently ride at an upper B / intermediate pace. |
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May 4th, 2017, 07:43 PM | #12 |
ninjette.org guru
Name: john
Location: placerville
Join Date: Apr 2016 Motorcycle(s): ninja 300 Posts: 386
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my 300 f04 the track is 1 1/4 dbones and 6.8 mm thru at the pinch slice
handles great but i also run a lot of sag on the front. |
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May 5th, 2017, 10:31 AM | #13 | |
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
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Quote:
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