J
Hi All,
I have 2007 10s Campy Mirage/Xenon QS on my son's road bike. The
crank, however is not Campy. I wanted short 150mm crankarms, so I used
a "Bulletproof" cheap crankset with 110 BCD rings. I used a NOS SR 34T
inner ring and a 44T outer ring which I believe is a BMX ring for
3/32" chains. The front derailleur is a Compact Mirage. I chose
Compact because I thought it would match the radius of the smaller
rings better. The outer ring is on the think side and has no pins or
ramps, so I had no expectation that shifting would be great, which of
course it is not.
I was about to bite the bullet and go find some "real" 110BCD rings,
but during some fiddling on the stand, the chain would pretty
consistently not shift down to the small ring and would skate along
between the rings.
I don't want to buy new rings if they won't make any real difference.
But maybe a non-CT front der would help.
So will real rings with pins/ramps help the skate problem down to the
small ring in addition to making shifting onto the big ring easier? Or
should I just hit the faces of the crankarms with a file to get the
rings closer and call it a day? Will a non CT der maake any
difference?
Joseph
I have 2007 10s Campy Mirage/Xenon QS on my son's road bike. The
crank, however is not Campy. I wanted short 150mm crankarms, so I used
a "Bulletproof" cheap crankset with 110 BCD rings. I used a NOS SR 34T
inner ring and a 44T outer ring which I believe is a BMX ring for
3/32" chains. The front derailleur is a Compact Mirage. I chose
Compact because I thought it would match the radius of the smaller
rings better. The outer ring is on the think side and has no pins or
ramps, so I had no expectation that shifting would be great, which of
course it is not.
I was about to bite the bullet and go find some "real" 110BCD rings,
but during some fiddling on the stand, the chain would pretty
consistently not shift down to the small ring and would skate along
between the rings.
I don't want to buy new rings if they won't make any real difference.
But maybe a non-CT front der would help.
So will real rings with pins/ramps help the skate problem down to the
small ring in addition to making shifting onto the big ring easier? Or
should I just hit the faces of the crankarms with a file to get the
rings closer and call it a day? Will a non CT der maake any
difference?
Joseph