Originally Posted by
anga
Can I use disc brake rotors as spoke protector discs?
Possibly.
Originally Posted by
anga
If yes, have the following questions.
1. Should I use centerlock or 6-bolt rotors?
I don't think it matters as you'll have to remove the centre anyway.
Originally Posted by
anga
2. For a 11-36T cassette, diameter of 36T cog is 150mm (6 inches).
Is it better to use 180mm or 203mm rotors?
I just checked a 32t cassette against a 160 mm rotor and that looked a bit close, so I'd go for the 203 mm on 38t.
Originally Posted by
anga
3. Should I attach the rotor to the spokes or the 36T cog?
Probably more effective bronze welded to the back of the cassette than zip tied to the spokes.
Originally Posted by
anga
4. How close to the 36T should the rotor be to prevent chain derailment?
The regular spoke protector doesn't prevent chain drop, it just catches it before it chews the spokes or jams the freewheel. You'll need it far enough back that the derailleur doesn't hit it in normal operation.