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PR4 tire pressure suggestions


Casper
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With your bike and size, I would start at 36 front and 40 rear, go up from there if you are experiencing accelerated rear tire wear or cupping.

Your bike is light enough that I would not worry about cupping at those pressures.

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  • 3 months later...

I just bought a pair of PR4, on one of the 919. Running stock 36f and 42r to start. Seems acceptable. Thinking that would be harsh on a Dunlop rear. Might lower the pressure in the rear a bit. Running RoadSmart II on the other 919, at 36f 36r. Might raise the pressure in the rear a bit. The 42r is stock with two passenger. Pretty much ok to drop up to 15-25% of that pressure, and be correct for single rider. But I'd stay a bit on the high side of the choice of pressures. Not using anything else other than stock 36psi for the front tire from now on.

425+lb bike w/ 170lb rider - 120/70-17 - 180/55-17

 

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