crank help

[way mars]

I have a cannondale xs800 with no crank or bb. I have an old Ultegra bb (109mm) and crank with 53-39 sprocket I tried to use this set up on it , the bb fits just fine but when I put the crank arms on the sprockets hit the chain stays my question is, is my bb to narrow or is my sprockets to big? any help will be appreciated. thank you Wayne

[modernist]

Your bottom bracket is too narrow. I have an xr800 with the same cranks on them (53-39) and no rub. My bottom bracket is 113 in width.

[way mars]

thank you so much modernist i will give it a try

[way mars]

Ok I just bolted my ultegra crank arms (hollow teck octlink) to a shimano bb-es71 113mm.It worked perfect thanks again modernist ...Wayne

[way mars]

Ok I just bolted my ultegra crank arms (hollow teck octlink) to a shimano bb-es71 113mm.It worked perfect thanks again modernist ...Wayne

[way mars]

Ok I just bolted my ultegra crank arms (hollow teck octlink) to a shimano bb-es71 113mm.It worked perfect thanks again modernist ...Wayne

[modernist]

Glad to hear it worked.

[way mars]

update ultagra crank arms will not bolt on to a bb-es71 yes it will bolt on and look good but when you use this set up the crank arms loosen and destroy the grooves. thanks anyway I know now...Wayne