Hi,
I have a Surly New Hub with a blown cartridge bearing (snap, crakle *and* pop). The Surly docs spec a 7901 cartridge (12mm x 24mm x 6mm) as replacement bearings for all the Surly New Hubs.
The 6901 or Phil Wood PW901 are available with the same dimensions. Are they adequate replacements for short term or long term use?
I would like to ride tomorrow and I'm certain I can find a 6901 locally. Today I hit up a few shops looking for the 7901 but came home empty handed.
Tonight I looked at the
Enduro spec sheet for their 7901 offering and I could not glean any information as to what makes the 7901 different than the 6901 other than a note next to the description of the 7xxx series stating
*These are Special
Angular Contact Type
Bearings to be used
ONLY with a hub
or component designed
for their usage
I found this thread,
http://www.bikeforums.net/showthread.php?t=95774 regarding a swap of a 7901 for a PW901 (I assume this is the phil woods 6901 analog) but nothing else regarding the 6901/7901 differences on bikeforums.net or google showed up.
Of course I could ask Surly, Enduro or Phil Wood but it's the weekend...
Thoughts or experience with this?
Thanks much.