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  #1  
Old 11-14-2012, 06:46 PM
Wess23
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Default Front brake upgrade questions

I recently put some EBC HH pad's on the front of my 2007 non ABS and while they helped I want something better. I am looking at getting some CBR 600 calipers and the adapters from SV Racing.

My question is in regards to the master cylinder, I see quite a few comments that the stock unit is marginal at best. There are quite a few a CBR caliper sets listed that include the master cylinder, can this be made to work on my Wee or do I need to spend another 200 for a radial from SV Racing? I'm assuming the plumbing won't be a problem but what about the brake light?

Thanks
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  #2  
Old 11-14-2012, 09:24 PM
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I did the upgrade with Tokico calipers and Galfer HH pads from Blair, and the result is awesome.

No problem keeping the stock master cylinder whatsoever.
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Old 11-14-2012, 10:56 PM
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I did the upgrade with Nissin calipers. It works great! The stock master is fine.
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Old 11-15-2012, 12:58 PM
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Same here stock master with the 4 piston upgrade, It works well. I would like to experience what it is like with the upgraded master.
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Old 11-15-2012, 03:18 PM
Wess23
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Thanks for the replies. I will concentrate on getting a good set of calipers and not worry so much about whether the master is part of the deal.
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Old 11-15-2012, 05:50 PM
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Quote:
Originally Posted by Buffalo rider View Post
Same here stock master with the 4 piston upgrade, It works well. I would like to experience what it is like with the upgraded master.

The upgraded master that SV Racing sells is a Radial Master Cylinder. The wee has a Axial Master. The Axial design flexes . I doubt anyone would notice a difference.

Having said that, my KTM Superduke 990 has a radial master with radial calipers. They are the best brakes I've ever felt... ever.

"The relatively new radial mount caliper design virtually eliminates this torsion flex problem since it more efficiently spreads the load both fore and aft to the line of force."



Here is a brief explanation of radial of the master cylinder...

" Radial and conventional/axial master cylinders differ in the orientation of the piston relative to the handlebar and to the pull direction of the lever. The conventional design places the piston axis parallel to the handlebar and perpendicular to the lever pull direction. The radial design puts the piston axis parallel to the lever pull direction and perpendicular to the handlebar. Radial and axial master cylinders are functionally the same.

The main advantage of the radial design per se is that it moves the lever pivot point inward toward the centerline of the bike so that the same pull force develops a smaller moment about the connection point to the handlebar. This reduction in bending moment results in less flexing of the master cylinder housing. Any reduction in flexing of brake parts such as in the lever, MC housing, brake lines, calipers and caliper mounts add up to better brakes with better feel (modulation.) Also, aftermarket radial designs are generally stiffer than the OEM designs because they are machined from alloy billet material.
"
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