Originally Posted by
fietsbob
A doubleizer for the single chainring new Brompron cranks was what came to Mind for Me, they dont have the centering shelf . the arm is outside the chainring. **
so It + a longer spindle would do . the trick .
** Campag Record Off Road crank did Similar, Back In The Day ..
Wait, what?
How do you mount this on a crankset with shelves/ledges? Or does it only work with those cranks that
don't have ledges?