Rear rotors
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    Thread: Rear rotors

    1. #1
      Junior Member rlvdesign's Avatar
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      Question Rear rotors

      Hello, has anyone changed the rear rotors to match the front slotted rotors? If you had, what size rotors and brand did you used? Thanks
      '16 V60 Polestar

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    3. #2
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      Subscribed!
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    4. #3
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      I bet Adam's Rotor will make a pattern matched set. I have used them before on my previous cars and have never had any issues.

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    6. #4
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      Slotted rear rotors ( = discs in the UK). What do you mean by "slots" ? Internal ventilation or machined grooves on the braking surface ? My Polestar as supplied has ventilated rear discs.

    7. #5
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      You cannot fit larger rotors in the rear due to the E-Brake. If you want to spend money on slotted rotors that are the same size, KPAX offers them for over $400, http://www.kpaxperformance.com/shop/...ormance-rotors. Opus007 has them on his P*. The reality is that you will not notice any difference in performance from them as the majority of braking is handled by the front rotors.
      Current: 2015.5 V60 Polestar Matte Gunpowder #50
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    8. #6
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      Rear rotors

      I bought those Brembo rear slotted rotors during KPAX's sale this past summer at 50% discount. No more rusty OEM rear rotors for my P*!



      Note they are opposite slotted direction compared to the front rotors, but they should be different due to the closed rear calipers and open front calipers.

      Last edited by Opus007; 12-09-2016 at 10:11 AM.
      2015.5 Volvo V60 Polestar #15/80, Matte Rebel Blue
      1993 Volvo 850 GLT, Red, 170K miles (gift to family)
      1979 Volvo 265 GL, Blue (sold)

    9. #7
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      Opus any perceptible improvements in braking dept ?

    10. #8
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      Not that I notice. As P50GT said it's the front six pot Brembos that handle the majority of the braking.

      I may now have cooler rear brakes with the slotted venting but most importantly to me they don't rust like the OEM rotors.

      I wouldn't have bought them at the full K-PAX price. But 50% off was worth the improvement for me. Your mileage may vary... 😜
      2015.5 Volvo V60 Polestar #15/80, Matte Rebel Blue
      1993 Volvo 850 GLT, Red, 170K miles (gift to family)
      1979 Volvo 265 GL, Blue (sold)

    11. #9
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      Did you also change braking pads for non OEM ?

    12. #10
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      Any reason they can't be swapped side to side so the slots match up with the ones in front? Are the internal vanes directional like the fronts? If not, you should be able to swap them.
      2015.5 Volvo V60 Polestar #13 | 1976 Triumph TR6

    13. #11
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      The P* rear brake pads are already spec'd to be Brembo pads. I have the correct spec rear pads. No need to change them. I'm now running 100% Brembo rotors and pads at all four corners. :-)

      The install instructions for the KPAX Brembo rear rotors was that direction. Mounting in the other direction you will be ejecting debris and gases into the rear caliper. As the OEM rear caliper is closed there is nowhere for that stuff to go.
      Last edited by Opus007; 12-09-2016 at 03:38 PM.
      2015.5 Volvo V60 Polestar #15/80, Matte Rebel Blue
      1993 Volvo 850 GLT, Red, 170K miles (gift to family)
      1979 Volvo 265 GL, Blue (sold)

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