The current rotor on my '92 GSPD is an aftermarket "floating rotor". Two other bikes of mine also have this rotor and they seem to be great. However, the one on the PD has a lot of FLOAT! It's to the point that it rattles when going down a bumpy road. While at the recent 2026 Super Tech, another attendee relayed that the rivets used to hold that rotor on are made of aluminum and do wear out, allowing for the play I'm experiencing. His recommendation was to replace it before it became dangerous. 

My inquiry here is, has anyone tried the Sieberock Big Front Brake Rotor Kit for the R100GSPD? I'm sure replacing the existing one with another of the same would be just fine. But, in doing some research, I came across this kit that increases the rotor diameter to 320mm, thus providing greater braking leverage. In order to accomodate the larger rotor, an adaptor is used to allow the existing caliper the proper clearance it needs. The product description says that replacing the brake line may also be necessary. 

Before taking the leap of extra money spent, I thought it would be worthwhile to see if anyone in the club has any advice regarding this kit. 

Thanks,

J.T.