In response to:
Quoted message said:Quoted message said:Quoted message said:I have a late 80's (1987?) Cilo road bike. It has a shimano biopace dual
crank and 6spd cassette. I like the bike and would like to upgrade it to be
a triple crank (for hills) and 9 spd cassette. I was thinking of Shimano
105 components. Is this practical / doable?
Alex Rodriguez said:Quoted message said:
Yes it is doable. It will take some work. You will need to have the spacing
on your rear triangle re-set to 130 to accept a 9spd wheel. You will need to
buy:
rear wheel
9spd cassette
9spd chain
9spd cranks
matching BB
That is a minimum. If you want to go to STI, then you will also need the STI
levers and an index compatible derailleur. Check the prices on these parts and
then you can decide if it is worth it to you.
Francesco Devittori said:
Maybe new cranks, BB and front der are not needed?
For conversion to 9-speed, they're not needed, but the original poster
also mentioned that he wanted to upgrade to a triple in front.
The O.P. could save a lot of money by going to a wide range cassette and
leaving the cranks alone. This would require a new rear derailer, but
derailers are cheap. He could get much lower gearing than he or she has
now without changing the cranks. Going from a 42 to a 38 tooth small
chainring would also help, again at a much lower cost than going for a
triple.
Sheldon "Decisions, Decisions..." Brown
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