Bicycle Mechanics - bb size

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fishingjld
06-12-10, 11:04 PM
anyone know the bottom bracket size of a early 1990s giant iguana? say it's a 1991 or so?


AEO
06-12-10, 11:52 PM
should be ISO, but it's not too hard to check for yourself.

http://www.sheldonbrown.com/gloss_bo-z.html#bottom

Jeff Wills
06-13-10, 06:10 PM
anyone know the bottom bracket size of a early 1990s giant iguana? say it's a 1991 or so?

Look out for those Giant Iguanas... they'll bite your head off.

A really rough, random guess is English thread, 118mm length spindle. Without knowing the exact crank model, it's hard to be more precise. The model name should be printed on the outer face of the crank, the model number is probably stamped on the inner face. The model number will be "FC-Mxxx". Fill in the blanks.