Just took it apart and it was lubed so I have my answer. Noticed the o-rings were trashed. Not too happy with this bb set-up already needs a bearing according to LBS less than 2 months use.
yogreg / Would I be able to use the FSA crank with that set up? Or is that also a weak link? Hook me up on what I need JSA style / MKIII expert bike. We are talking deore xt right not raceface x-type?yogreg said:That crankset/BB is pretty weak. I suggest cutting your losses and go with an XT set-up.
Here are some options for you.broncbuster said:yogreg / Would I be able to use the FSA crank with that set up? Or is that also a weak link? Hook me up on what I need JSA style / MKIII expert bike. We are talking deore xt right not raceface x-type?
I'm pretty sure that you can't use an x-type bb with your fsa cranks. you can however swap your bb bearings and cups to xt if you so desire but I don't know what the benefit would be in that.yogreg said:Here are some options for you.
Ditch the stock bottom backet and replace with something better like a Race Face diabolus x-type. This will work fine with your FSA cranks.
g-funkg-funk said:I'm pretty sure that you can't use an x-type bb with your fsa cranks. you can however swap your bb bearings and cups to xt if you so desire but I don't know what the benefit would be in that.
The resistance on the external bb is goung to be greater than an internal due to the increased leverage with the larger bearing. a little play isn't a bad thing and isn't noticible. I think it compliments the loose heim joint perfectly!!!!
Bronc...Not sure I understand...broncbuster said:harky
Called FSA they said that is normal about the rings coming apart in fact designed to do so. Purpose is to aid in setting crank tension at initial installation / what most people might call pre-load. The conclusion I drew from that would be after the rubber comes off the inner metal ring part of the o-ring you would be left with a very minute amount of slack.
Those are the o-ring I am talking about they look like all rubber but they have a little metal washer in the middle. I also asked that about being a dust seal. I guess they could get chewed up if you had too much slack between the bearings and the crank. Which to reduce binding/don't want to say set pre-load some people back their cranks out a hair. Didn't act like the dust would be a problem, which was one of my concern pos. damaging the spindle. If you are one of those who slackens your crank you pretty much eliminate that seal anyway. They may have been just telling me a story who knows?harky said:Bronc...Not sure I understand...
I've seen small o-rings on the crank shaft between the crank arm (or chainring hub) and the bearing. I have these on my FSA and on my XTR Hollowtech as well. I thought that this was some kind of dust seal. Are these what you are talking about? or are you referring to something inside the bearing itself?
I dont know how these would get chewed up as they normally rotate along with the bearing. Now if the bearing seized, then I can see that there would be a problem with the o-ring getting chewed up. Didn't you say that your LBS diagnosed a bearing problem??
Check the price and availability of chainrings for that XT Hollowtech. I have an '03 XTR Hollowtech and the replacement chainrings are VERY expensive. I could only get them from Shimano and they were different from the regularre XTR rings. The 2 replacement rings (44T & 32T) cost more than a complete new FSA V-Drive crankset. (Doah!) Maybe things have changed with the newer XT...Jodiuh said:I ordered the FSA's from my local bike shop yesterday with confidence. It seems when the forum is taken in context with the reviews, they seem to be the favored choice vs XT Hollowtech. Maybe I'll get both and do a head to head.