Originally Posted by
MudPie
I had a loose NDS bearing on an 2013 Madone, and took it to a reputable LBS that sells Trek (it's not a "Trek of ____" store name). The shop replaced the same diameter bearing (as the numbers matched the old one) and I assume it was chemically bonded into the BB, and charged me to the tune of $90 (replaced both bearings). Should this have been a warranty repair, and should the shop have used an oversized or carbon ring? It's water under the bridge for me, but just curious as to how Trek viewed this known problem. The real test will occur if I need to remove that bearing in the future.
The only thing used when installing BB90 bearings is grease. If a bearing is loose it should be replaced w/ an oversize bearing if that results in a proper fit. I can't think of an instance when it wouldn't be a warranty deal, maybe if there was a ton of corrosion? I never charged anyone for the service and parts, I ran all of them through the online warranty process and every one was approved.