Maybe they just over torqued the bolts? before thinking about changing the bearings I would undo the bolts and make a "finger check" to feel if the bearings are moving smoothly, and eventually go back to the shop that changed them.Funny that I just read this thread as currently I'm going through pivot bearing hell . My Trek only has like 1,000 miles on it purchased 8 months ago. Pivots started creaking around 500 miles. Since parts have a two year warranty I took it to my LBS 3 miles away from me who is a Trek dealer, but it is not a corporate store. He replaced the upper and lower pivot bearings last week. Yesterday temps were back in the forties so I had a chance to ride it again. Now the creaking is 2-3 times as loud and appears to be coming from the upper pivot which he said was the easiest one for him to replace.
Last night I decided this AM I'm going to call the corporate Trek store located 25 miles north of me. I'm hoping they are better staffed with a tech or techs there. I figure since they have 15 electrics in stock on their website they might be more experienced with this type of issue. I'm sure they do a lot more work on EMTB's than my LBS as I only saw one electric in his show room.
I know what this is going to involve for me now . . . First I'll have to drive 25 mph north just for them to diagnois the issue and then tell me they have to order the correct bearings. Then drive home again. Then drive up there again when bearings come in. Then leave it there over night and drive back home again. Then drive back again to pick it up and pay them the labor charge as Trek's warranty says it only covers parts . . . I'm guessing $200 in labor. I think my LBS Trek store had the bill reversed as he charged me like $100 for the bearings and Trek's warranty states they don't pay for labor.
So I'll clock another 150 miles to get this done now a 2nd time.
And this corporate store might even give me a hard time telling me to take it back to where I bought it. I tried to order my model from them originally and they told me I wouldn't see it for a year! So Trek corporate located one for me 2.5 hours west of me (was 5 hrs round trip). I can see this turning into me having to drive another 5 hrs and also book an over night at a hotel there waiting for it to get done. I will make sure they have the bearings in stock or pre-ordered.
Bottom line is in the future I will change or re-grease the bearings myself (Does Trek use sealed bearings that ca't be re-greased?) I have a Park stand and I've watched the how to vids on Youtube. Coincidently, today I was going to order from somewhere a bearing remover/ press kit (and a crank puller to get at the bottom bearing) and this AM I see this thread resurrected on where to buy bearing tools. So far just looking at Park's combo set it is over $700 with tax and I don't need such a complete set more geared for someone doing professional bike shop repairs on various models.
My plan this AM is to make a vid of the sound and where it's coming from then send it to the corporate Trek store 25 miles north of me and see if they can diagnois it which would save me a trip back an forth.
Question . . . what might this LBS bike shop have done potentially wrong to have replaced all 4 bearings (one on each side) with both upper and lower pivots to cause the creaking now to be 2-3 times louder now than before he repaired it?
It was hard to replicate the creaking before he repaired it, If I sat on the bike and moved my body weight up and down I found I could replicate it before he changed the bearings. But now all I have to do is lean my body weight on the seat move up and down and I can hear the loud creakning while seeing the upper pivot flexing. I can even put my hand on the pivot and feel the creaking now!