Re: [CR]Stem expander thread

(Example: Component Manufacturers:Avocet)

In-Reply-To: <20050714174209.55255.qmail@web81002.mail.yahoo.com>
References: <20050714174209.55255.qmail@web81002.mail.yahoo.com>
Date: Thu, 14 Jul 2005 14:07:19 -0400
To: Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net>, classicrendezvous@bikelist.org
From: "Sheldon Brown" <CaptBike@sheldonbrown.com>
Subject: Re: [CR]Stem expander thread


Quoth Jerry Moos:
>I've just cut down a Nitto Technomic stem that was too long for a
>headtube on a 53cm frame with the bars set fairly low. Problem is,
>the expander bolt is only threaded the last few cm, so if I cut it
>to match the reduced stem length, I will cut off the threaded
>section. Fortuitously, it happens the Nitto expander uses a
>standard M8 x 1.25 thread and I've found a net site that sells
>stainless M8 x 1.25 socket head cap screws as long as 140mm, which
>should be sufficient. I will probably order one or two, but if
>these will work for most European and Japanese stems, I may order
>several more. Does anyone know if the M8 x 1.25 thread is common to
>all major European and Japanese stem expanders?

We wish!
>Or does it vary from brand to brand? I imagine the older UK stems
>are probably English thread.

The M8 thread is pretty common in Asian stems, but I've never found a European stem that used any identifiable standard threading.

Sheldon "Nittophile" Brown +---------------------------------------------+ | If your bike has drop handlebars, but you | | rarely or never ride on the drops, it's a | | sure sign that your bike is not properly | | fitted or is not properly adjusted! | | See: http://sheldonbrown.com/handsup | +---------------------------------------------+ --
    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
    Useful articles about bicycles and cycling
            http://sheldonbrown.com