Handlebar attachments

Dave Grant said:

Sorry if this is a stupid question, but is it possible to replace an
ahead h/b attachment with a quill type?

The basic answer is no. Quill stems require a threaded headset, and
threaded headsets require threaded forks. A-head stems are used on
threadless forks (and also threaded forks via an adapter). Also the
internal diameter and material of the fork steerer must be appropriate for
a quill stem, not all are.

Quoted message said:

Given the importance of fit with cycles, I'v e never understood why
the barely adjustable ahead type is so poular now (or am I missing
something)?

The threadless system is arguably cheaper, stiffer, lighter and more
reliable.

~PB

On Mon, 27 Jun 2005 20:55:14 +0100, Dave Grant <[email hidden]>

Quoted message said:

Sorry if this is a stupid question, but is it possible to replace an
ahead h/b
attachment with a quill type?

Not really (you could replace the forks). What are you trying to
adjust? Do you want more rise, or a different length reach? A new
stem might do the trick, and would probably be cheaper than any
conversion job.

--
jc

Dave Grant said:

Given the importance of fit with cycles, I'v e never understood why the barely
adjustable ahead type is so poular now (or am I missing something)?

YOu have a good point.I am glad I don't have any ahead set devices.
Since upping my mileage this year I have tinkered with my bar position
on all three bikes in recent months, higher, lower in a bid to get them
all similar. This wouldn't have been so easy with the other system. Of
course Petes points about weight etc are very valid (as always).

in message <[email hidden]>, Dave Grant

(') said:

Sorry if this is a stupid question, but is it possible to replace an
ahead h/b attachment with a quill type?

No, not at all easily.

Quoted message said:

Given the importance of fit with cycles, I'v e never understood why
the barely adjustable ahead type is so poular now (or am I missing
something)?

Lighter, cheaper, easier to assemble. But I completely agree with you -
although these are benefits for a manufacturer, for a retailer (who
also gets to sell lots of replacement stems) and for a racing team
which can afford to find exactly the right stem for each rider, it's
not a sufficient benefit for the average user to outweigh the
difficulty in adjusting.

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/

For office use only. Please do not write or type below this line.

In article said:

Dave Grant said:

Sorry if this is a stupid question, but is it possible to replace an
ahead h/b attachment with a quill type?

The basic answer is no. Quill stems require a threaded headset, and
threaded headsets require threaded forks. A-head stems are used on
threadless forks (and also threaded forks via an adapter). Also the
internal diameter and material of the fork steerer must be appropriate for
a quill stem, not all are.

On the other hand, some are, in which case you could replace the stem
with a collar like this:
http://www.sheldonbrown.com/handsup.html#threadless
and then stick a quill stem inside the steerer like this:
http://sheldonbrown.org/thorn/index.html