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I am about to convert my roadbike from an RSX triple chainset to a Tiagra
double so need a new bottom bracket.
I am probably going for the Un 52/53, however looking at www.wiggle.co.uk
this seems to come in a bewildering array of axle widths and shells
(threads?). Could anyone advise which one I need please, the frame has an
English thread.
Thank you in advance for any advice.
Psyron said:I am about to convert my roadbike from an RSX triple chainset to a Tiagra
double so need a new bottom bracket.I am probably going for the Un 52/53, however looking at www.wiggle.co.uk
this seems to come in a bewildering array of axle widths and shells
(threads?). Could anyone advise which one I need please, the frame has an
English thread.
See: http://sheldonbrown.com/bbsize
Tiagra double wants a 68 x 110, very common size.
Available at: http://sheldonbrown.com/harris/bottombrackets.html#shimano
Sheldon "Not That Bewildering" Brown
+--------------------------------------+
| Any event, once it has occurred, |
| can be made to appear inevitable |
| by a competent historian. |
| --Lee Simonson |
+--------------------------------------+
Harris Cyclery, West Newton, Massachusetts
Phone 617-244-9772 FAX 617-244-1041
http://harriscyclery.com
Hard-to-find parts shipped Worldwide
http://captainbike.com http://sheldonbrown.com
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