Re: XT hub : to service or not ?
- From: Paul Kopit <pkopit@xxxxxxx>
- Date: Wed, 31 Oct 2007 12:27:51 GMT
On Wed, 31 Oct 2007 10:01:03 GMT, "news.virgin.net" <anon@xxxxxxxx>
wrote:
Hi,
I bought a wheel for my tourer with an XT hub after trashing many wheels
over the years and it's been wonderfull. The bearings are still completely
smooth and have no detectable play. The question is - should I bother to
replace bearings and grease ? It has done about 4000-5000miles, mosly on
road and is just over a year old. I understand that replaceing the bearings
on a free hub is more involved than on a free-wheel so I'm wondering if I
should bother until some play is detectable. I was on a ride a while back
with a guy who had XT hubs for touring and he said he hadn't touched them
for years.
Thanks in advance,
Bruce.
Once the hub becomes unsmooth, it's frequently too late. The how to
doesn't get much better than the Park Tool site
<http://www.parktool.com/repair/readhowto.asp?id=105>
I live in SoCal and I rarely ride in rain and rarely need to open hubs
and the hubs I have go much >5,000 miles between cleaning and
regreasing. However, the OEM grease on Shimano balls is light.
I'd open the hubs, replace the bearings, and regrease. The grease
that is on my bench is Mobile Synthetic, which is red in color. I
almot always change the ball bearings when removing. They are
inexpencive and it's easy to put in new ones and not clean old.
Setting the preload on bearings properly will increase the lifetime of
a hub.
.
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