A
Alpha Beta
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Having read the following article: http://www.geocities.com/SiliconValley/Port/2945/Gears/Gears.html
I want to try the half-step and granny crankset setup describe below:
For my RANS Rocket I want a 53-50-30 crankset. (The Rocket comes with a 62-52-39 so I won't be
chaning the teeth count differential.) I have been experimenting a little the problem seems to be
the impossiblity of finding a front derailer which will allow this. A inner plate of the triple
front derailleur chain guide cage, because the plate is so deep, seems to get blocked by the middle
chainwheel when trying to shift into the large chainwheel.
I though of using a double derailleur since the inner plate is shallower. I thought that if I
loosening the low stop as much as I can, this might work but the double does not have enough travel
to accomodate the a triple crankset.
Does anyone know of derailleur which will allow this odd crankset setup? Has anyone had experience
with a half-step and granny setup?
Since Ultegras have replaceable chain guide cages, I was thinking of buying a Ultegra triple front
derailleur, but replacing the chain guide cage with a double's chain cage.
Does anyone know if the the mount of the replaceable chain cages allow for this swap?
Can anyone having both a double and triple Ultegra front derailleur take a look and tell me if they
judge the chain cages to be swapable?
I want to try the half-step and granny crankset setup describe below:
For my RANS Rocket I want a 53-50-30 crankset. (The Rocket comes with a 62-52-39 so I won't be
chaning the teeth count differential.) I have been experimenting a little the problem seems to be
the impossiblity of finding a front derailer which will allow this. A inner plate of the triple
front derailleur chain guide cage, because the plate is so deep, seems to get blocked by the middle
chainwheel when trying to shift into the large chainwheel.
I though of using a double derailleur since the inner plate is shallower. I thought that if I
loosening the low stop as much as I can, this might work but the double does not have enough travel
to accomodate the a triple crankset.
Does anyone know of derailleur which will allow this odd crankset setup? Has anyone had experience
with a half-step and granny setup?
Since Ultegras have replaceable chain guide cages, I was thinking of buying a Ultegra triple front
derailleur, but replacing the chain guide cage with a double's chain cage.
Does anyone know if the the mount of the replaceable chain cages allow for this swap?
Can anyone having both a double and triple Ultegra front derailleur take a look and tell me if they
judge the chain cages to be swapable?