monster brake upgrade weight comparison

Started by BK_856er, November 08, 2008, 08:32:28 PM

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BK_856er

Just for giggles I weighed my old/new rotors + calipers (both sides combined) on a digital bathroom scale:

- 300mm rotors + 2-piston floating calipers (OE on the M695 and S2R800) = 10.5 lbs.

- 320mm Brembo narrow-band rotors + 4-piston/pad calipers (similar to xx9 SBK) = 9.5 lbs.

Not too shabby.  No unsprung weight penalty!

BK

DucSteve

Only con is a lighter wallet. Oh hey, that's even less weight...

desmoworks

I wonder if the weight difference is negated due to the rotors being 20mm greater in diameter therefore the weight farther from the center of the axle...
Anthony Creek
Pro Italia Online || mota-lab

BK_856er

Quote from: desmoworks on November 08, 2008, 11:21:37 PM
I wonder if the weight difference is negated due to the rotors being 20mm greater in diameter therefore the weight farther from the center of the axle...

Could be.  I was happy to find that the whole change resulted in less unsprung weight as opposed to more.  I couldn't get accurate weights of the individual components due to the limitations of my scale, but the 320mm rotors felt noticeably lighter than the 300mm ones, so it might be a wash in terms of the new larger diameter since most of the weight reduction seemed to come from the rotors anyway.  My main objective was improved braking, which should now be in abundance!

BK

desmoworks

For sure that thing must stop great now!  [thumbsup]
Anthony Creek
Pro Italia Online || mota-lab