palerider5763
Fossil Fuel User
Hello all -
I am going through a new-to-me 84 R100CS LE, trying to address a number of age-related and sitting-related issues. A point of contention between the bike and I has been the front brake. It's the brembo dual disc setup, with a 15" master, and the rubber-distribution piece-steel-rubber-steel hose/pipe configuration going down to the calipers. The rotors are the stock, fixed type (possibly also by brembo). Everything appears original to 1984.
Issue is the front brake keeps locking up, sometimes after it's stationary for a while, sometimes it's fine for a few miles and then begins to drag the bike slower (along with the smell). I've bled the brakes, replaced the fluid, attempted to clean the little holes in the master cylinder, but no dice. And since everything on it is original, and I don't want to die on it, I've decided to replace everything from the master on down to the calipers and rotors to give me piece of mind. And a project to do when my kids are away.
As I'm collecting my parts I'm debating whether to buy the OEM rotors again (34 11 236 005) or go for something potentially better, like EBC floating or semi-floating discs. Prices for either are around $220 each, more or less. Any thoughts on the pros/cons?
On one hand, I want to keep the bike original; on the other, I ride it and would appreciate better stopping power and/or more even wear. But with new Brembo OE single-pot calipers and pads installed (they still make them!), would semi-floating/floating rotors be better, worse, or have no effect? What would you do?
Thanks for your collective wisdom! Ride safe-
James
I am going through a new-to-me 84 R100CS LE, trying to address a number of age-related and sitting-related issues. A point of contention between the bike and I has been the front brake. It's the brembo dual disc setup, with a 15" master, and the rubber-distribution piece-steel-rubber-steel hose/pipe configuration going down to the calipers. The rotors are the stock, fixed type (possibly also by brembo). Everything appears original to 1984.
Issue is the front brake keeps locking up, sometimes after it's stationary for a while, sometimes it's fine for a few miles and then begins to drag the bike slower (along with the smell). I've bled the brakes, replaced the fluid, attempted to clean the little holes in the master cylinder, but no dice. And since everything on it is original, and I don't want to die on it, I've decided to replace everything from the master on down to the calipers and rotors to give me piece of mind. And a project to do when my kids are away.
As I'm collecting my parts I'm debating whether to buy the OEM rotors again (34 11 236 005) or go for something potentially better, like EBC floating or semi-floating discs. Prices for either are around $220 each, more or less. Any thoughts on the pros/cons?
On one hand, I want to keep the bike original; on the other, I ride it and would appreciate better stopping power and/or more even wear. But with new Brembo OE single-pot calipers and pads installed (they still make them!), would semi-floating/floating rotors be better, worse, or have no effect? What would you do?
Thanks for your collective wisdom! Ride safe-
James