On Apr 30, 9:06 am, Scott Gordo <
[email protected]> wrote:
> On Apr 29, 7:37 pm, "Bill Sornson" <[email protected]> wrote:
>
> > The real Duty-Honor-Country wrote:
> > > On Apr 28, 11:31 am, "Graham FM" <[email protected]> wrote:
> > >> Folks,
> > >> i've a 10 year old XT rear mech that i needs new Jockey
> > >> wheel bolts for.Anyone know what size they are?.Regards
>
> > > XT in that year used Haversham 250T's, 36 pitch with a dynaflux head.
> > > You could substitute a Rectocon 48B, 20 over 10 with a 3/32 backlash.
> > > $3.98 for a pack of 10 at Bike City.
>
> > I'll take two!
>
> For some reason, Duty-Honor-Country's reply doesn't show up in Google
> Groups. Must be because, you know, it's on-topic, useful, uncritical,
> and (I'm assuming) correct information.
Fish on!
It's all made up ****.
The bolt is a form of M5 (5mm by .8 thread). JD had it right ... it is
a specific type of M5. The bolt is 16mm long with only 4mm of thread.
The other 12mm is a smooth section where the bushing rides. Assuming
that the RD is 10 years old, then it is an 8sp M-739 ... the bolt head
is stepped to fit into the outer cage and uses a 3mm allen to
tighten.
For the OP, your best bet is to salvage. I doubt that Shimano has
those parts available.
You might try Part # Y-53M 24000 or Y-56954900. The first is a pulley
bolt from an M-760 XT (2004)... but it was the same part for the M-750
(1999). The second is from a 2004 tourney, but the head looks similar
to the M-739.
Look at the backside of the parallelogram, the model number will be
stamped there.
<snip>
R
