Chris NewbyFraser Posted September 13, 2016 Posted September 13, 2016 Are all rotor brake surfaces similar or do they differ sufficiently to affect braking performance. I have put new Shimano brakes on my tandem but left the Magura rotors on. Wondering if I should replace with Shimano rotors. Any guidance from somewhere out there?
JXV Posted September 13, 2016 Posted September 13, 2016 Rotors get worn down, then they lose stiffness, heat up faster, start rubbing. Minimum working thickness for Shimano Ice-tech rotors is 1.5mm on the friction part. I think they are 2.0mm new. These are steel with alu sandwiched in between. Others likely to have different specs. Look up manufacturer's website for specs. As long as your rotors are in good nick and the pads are radially and axially aligned with the friction surface then the Magura rotors should be OK. I cant say enough good things about Shimano Ice-tech rotors though. Considering the loads on a tandem, maybe 203mm Ice-tech front and rear would be a good upgrade. Sent from my SM-G935F using Tapatalk
PeterF Posted September 13, 2016 Posted September 13, 2016 I believe that the Shimano rotors are a bit thicker.
Chris NewbyFraser Posted September 14, 2016 Author Posted September 14, 2016 The new calipers are SLX and the 203mm Magura front rotor is reasonably new. They're OK but I just don't get a solid biting feel out of them and am wondering if the friction surface of the rotors does not match the pads
bikebloke Posted September 14, 2016 Posted September 14, 2016 are the pads brand new ...because if they are they need a bit of bedding in before they bite so you will notice a different feel
BaGearA Posted September 14, 2016 Posted September 14, 2016 Ice-tech rotors and pads almost double the braking force But to answer your original question : YES most of the time its miniute
JXV Posted September 14, 2016 Posted September 14, 2016 The new calipers are SLX and the 203mm Magura front rotor is reasonably new. They're OK but I just don't get a solid biting feel out of them and am wondering if the friction surface of the rotors does not match the padsThe pads need a few km of riding to bed in. More important....are the pads and discs clean? Any grease or oily fingerprints on the disc or pads at installation and they'll not bite. Clean with acetone .... carefully. Also very important is that the pads must sit 100% parallel to the rotor surface. Alignment is critical. If levers are spongy then bleed the brakes. Sent from my SM-G935F using Tapatalk
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