On 2017-08-15 13:24, Joerg wrote:
On 2017-08-15 08:29, wrote:
On Monday, August 14, 2017 at 1:11:23 PM UTC-7, Joerg wrote:

There is no space down there on the MTB for outboard bearings.

There most certainly is. The cranks are recessed for the added width
or they are simply wider. ...


Right now there is less than 0.020" clearance so this would require
buying new cranks and throwing out the current ones I have that are
still good (less a tooth here and there but who cares). I'd also have to
try my best to calculate the chain line before ordering, often from
scarce data.


... They do not start creaking after a short
time as was stated and they have lower rotational friction under
load.


I understand that. What I don't understand is this: I have helped
replace wheel bearings on offroad motorcycles. These weren't much bigger
and they are exposed to way more load and hammering. Fully loaded bike,
rider, tent, food, booze, clothes, air mattress and so on, blasting over
rutted trails at 40mph or more. Those bearings lasted north of 50k
miles. They weren't even shot, it was just PM.

If there just was an ES25 replacement where the left cup isn't plastic
I'd be happy. For my 1982 road bike there was but maybe I am out of luck
for the MTB even though it's a 2103 model year.


I meant 2013, of course :-)

--
Regards, Joerg

http://www.analogconsultants.com/