Re: [CR]campy crankbolt socket size

(Example: History)

In-Reply-To: <>
References: <>
Date: Sun, 26 Aug 2007 14:36:22 -0400
To: "bmaster flex" <>,
From: "Sheldon Brown" <>
Subject: Re: [CR]campy crankbolt socket size

Barry Scott inquired:
>What size crankbolt heads has campy used throughout the years . I
>typically use
>the peanut butter wrench but this guy says he has a crank bolt with a head
>that none of his tools fit. He says he has gone through the range of metric
>and even attemted to see if any standard sockets would fit. Any odd half
>sizes perhaps.

Back in the day, it was 15 mm. Not all 15 mm sockets have thin-enough walls to fit through the dust cap heads.

Your best bet is a major brand 6 point 3/8" drive. I know Snap-on and Craftsman sockets fit.

No 1/2" drive socket will fit, and cheap 3/8" drive sockets have thicker walls to make up for cheesy steel, so they won't fit either.

See also:

Sheldon "Snap-On" Brown

Harris Cyclery, West Newton, Massachusetts
Phone 617-244-9772 FAX 617-244-1041
Hard-to-find parts shipped Worldwide
Useful articles about bicycles and cycling