You probably need what is referred to as a 'peanut butter' wrench, which are normally 15mm for old square taper crank bolts.
15mm for Campag and 14mm for Shimano and Suntour..
@mr_lunch started
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You probably need what is referred to as a 'peanut butter' wrench, which are normally 15mm for old square taper crank bolts.