slybonesjesse
Sport Tourer
I have had the Tokico 6 pot calipers on the stock rotors for quite a long time. And given how well they worked I have not been in a huge hurry to blow money on 320mm rotors. Back when zrxmopar was building the brackets, he and I worked out a trade of parts, where I scored the brackets for the 320mm rotors. Had these sitting out in the garage for quite some time. I figured someday when the stock rotors wore out I would upgrade at that time.
I have been keeping an eye out for 320mm rotors and even started that Chinese knock-off thread a while back. One of the things I observed was used factory rotors going for $100 range each on ebay. Thats still $200 for factory rotors that are used, some even say warped in them. For a hundred bucks? The knock-offs look better. And just not ready to pay $350-$500 for killer 320mm wave rotors unless the stock ones are toast and MUST be replaced.
Then one day not too long ago while searching for ZZR1200 Rotors, I found a thread on the ZG Fanatics forum that listed a ZZR site that was selling brand new ZZR1200 parts. The claim was they purchased 5 ZZR1200 crate bikes for the motors, and were selling the remaining parts on ebay. -- They listed a pair of brand new ZZR1200 320mm factory rotors for $200 shipped. This is now competing with the knock-offs in terms of price. No they are not wave design, but at least a known product as they are factory momma K rotors.
I think these 6-pots were ideal for 310mm rotors. They are a little big for the 300mm rotors. With the pad aligned all the way at the front of the surface area, they are a bit larger than the rotor and have a funky wear pattern to be aware of. With these 320mm rotors and the extra surface area, the pads are located at the outer edge of the rotor with the outer edge of the pad. There is extra surface area left over the pads are not using. They could be even bigger yet.
All in all the Rotors are a bolt up swap. You need brackets to move your existing calipers out further to accommodate the larger rotor.
Some info from the calipers:
The 320mm rotors are thicker as well as larger diameter. New thickness on stock listed as 4.5mm, and 5.1mm for the ZZR. Mine measured right at 5.1mm. Min thickness for stock is 4.0mm, and 4.5mm ZZR.
There one was a post (debate) on the forum ages ago where some said the 320mm rotors had no more pad surface area, just the surface area is moved out farther from the center. I supposed overall some of this depends on the calipers and pads, but purely from a rotor point of view, the extra 20mm adds quite a bit of surface area. 1.20 inches for stock and 1.35 inches for ZZR.
The drill pattern is different. The stock drill pattern was somewhat directional, and the rotors have an arrow on them pointing the direction they are supposed to rotate. ( notice mine are backwards. Rode then that way for 78K mi ). The ZZR ones have no directional arrow that I could find.
Did a small test ride last night and to work this morning. They have a whole 25mi on them. So it is hard to compare at this time. Have to give a report later.
I have been keeping an eye out for 320mm rotors and even started that Chinese knock-off thread a while back. One of the things I observed was used factory rotors going for $100 range each on ebay. Thats still $200 for factory rotors that are used, some even say warped in them. For a hundred bucks? The knock-offs look better. And just not ready to pay $350-$500 for killer 320mm wave rotors unless the stock ones are toast and MUST be replaced.
Then one day not too long ago while searching for ZZR1200 Rotors, I found a thread on the ZG Fanatics forum that listed a ZZR site that was selling brand new ZZR1200 parts. The claim was they purchased 5 ZZR1200 crate bikes for the motors, and were selling the remaining parts on ebay. -- They listed a pair of brand new ZZR1200 320mm factory rotors for $200 shipped. This is now competing with the knock-offs in terms of price. No they are not wave design, but at least a known product as they are factory momma K rotors.
I think these 6-pots were ideal for 310mm rotors. They are a little big for the 300mm rotors. With the pad aligned all the way at the front of the surface area, they are a bit larger than the rotor and have a funky wear pattern to be aware of. With these 320mm rotors and the extra surface area, the pads are located at the outer edge of the rotor with the outer edge of the pad. There is extra surface area left over the pads are not using. They could be even bigger yet.
All in all the Rotors are a bolt up swap. You need brackets to move your existing calipers out further to accommodate the larger rotor.
Some info from the calipers:
The 320mm rotors are thicker as well as larger diameter. New thickness on stock listed as 4.5mm, and 5.1mm for the ZZR. Mine measured right at 5.1mm. Min thickness for stock is 4.0mm, and 4.5mm ZZR.
There one was a post (debate) on the forum ages ago where some said the 320mm rotors had no more pad surface area, just the surface area is moved out farther from the center. I supposed overall some of this depends on the calipers and pads, but purely from a rotor point of view, the extra 20mm adds quite a bit of surface area. 1.20 inches for stock and 1.35 inches for ZZR.
The drill pattern is different. The stock drill pattern was somewhat directional, and the rotors have an arrow on them pointing the direction they are supposed to rotate. ( notice mine are backwards. Rode then that way for 78K mi ). The ZZR ones have no directional arrow that I could find.
Did a small test ride last night and to work this morning. They have a whole 25mi on them. So it is hard to compare at this time. Have to give a report later.