January 11th, 2013, 11:01 PM | #1 |
Nerd
Name: Chris
Location: Tujunga
Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672
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Which Master Cylinder should i get?
So I've tried to get an easier pull on my lever for ninja 250 by replacing stock with an R6 master cylinder. It was almost impossible to squeeze and downright dangerous, with very very little lever travel. Im guessing its because the leverage was changed in the wrong direction? Which lever should i get if I Want:
Lever to pull closer to bar, but be easier to pull? Does this make sense, Im not sure how to explain it.
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It doesn't LOOK that steep. But you can go first... |
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January 11th, 2013, 11:45 PM | #2 |
Fast-Guy wannabe
Name: Jason
Location: Brentwood, Ca
Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot.
MOTM - Jan '13
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Look here for my update this weekend http://www.ninjette.org/forums/showthread.php?p=617484
I've tied 4 masters of all different sizes. |
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January 12th, 2013, 05:44 AM | #3 |
ninjette.org certified postwhore
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.
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I think the mc is too big, and the volume of fluid is too large for the stock brake calipers.
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Ethioknight Memorial Fund- Sticker sale http://www.ninjette.org/forums/showthread.php?t=111700 |
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January 12th, 2013, 10:32 AM | #4 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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When looking at m/c setups, the relationship between the combined area of the caliper pistons and m/c pistons will have a drastic effect on feel. When using the stock caliper, a m/c replacement should be close to the piston diameter of the stock m/c.
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January 12th, 2013, 10:41 AM | #5 | |
Fast-Guy wannabe
Name: Jason
Location: Brentwood, Ca
Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot.
MOTM - Jan '13
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Quote:
by the way does anyone know what the piston size is on our stock Master cylinder? |
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January 12th, 2013, 10:51 AM | #6 |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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From everything I've read, I think you'd probably want a 18x16 Radial or 12mm Axial MC.
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January 12th, 2013, 11:14 AM | #7 |
Fast-Guy wannabe
Name: Jason
Location: Brentwood, Ca
Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot.
MOTM - Jan '13
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18x16 radial is to big, I've got a 16x18 paired with my 4 Piston R6 caliper and it seems to be the perfect balance if still a bit on the stiff side. The ninja 250 caliper is 2 piston and they're smaller then the R6 pistons and estimate the surface area of the 250 is 40% of the R6. I'd estimate a 12-13 radial piston MC is needed but good luck figuring out what bike that comes on as it's OEM because I'm not sure where else your going to find it.
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January 12th, 2013, 01:01 PM | #8 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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what was wrong with the oem mc anyway? still too hard?? i find its not difficult to lock up the front with the stocker MC and cheap double H pads.
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