Bicycle Mechanics - Replacing Ultegra with FSA Compact Energy

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




varanik
10-04-05, 03:15 PM
Hi,
can I replace this:
http://cycle.shimano-eu.com/catalog/cycle/products/component.jsp?PRODUCT%3C%3Eprd_id=845524441770447&FOLDER%3C%3Efolder_id=2534374302034840&ASSORTMENT%3C%3East_id=1408474395181175&bmUID=1128460214137

with this:
http://www.fullspeedahead.com/fly.aspx?layout=product&taxid=21&pid=52

Is this possible? I suppose I need to buy an Isis bottom bracket but which one?
http://www.fullspeedahead.com/fly.aspx?layout=product&taxid=29&pid=73

does everything else stay the same (apart from lowering the front derailleur)?

Thanks for your help


sydney
10-04-05, 03:30 PM
As I read it you need an isis 108 spindle BB to go with the FSA crank. Threading obviously has to match your frame threading.

ostro
10-17-05, 08:02 PM
I have a similar question, i am looking at the Vigorelli cranks for my pursuit frame, it has a 36x24 70mm italian bb, I understand that i need ISIS 108 spindle BB, but will this fit into the bb?

Can anyone shed some light, i have explored quite a bit and even read FSA tech articles, still mystery.