I had the same Trek 850 I rode it to work for years, wore the rear rim out and it split.
Unfortunatly the frame was plagued with incorrectly jigged seatstays, rear wheel would sit central in the chainstays but one seatstay was a lot closer to the tyre than the other.
Also had the same problem but worse on a Diamond Back AscentEx and a flatland BMX as well
Unfortunatly the frame was plagued with incorrectly jigged seatstays, rear wheel would sit central in the chainstays but one seatstay was a lot closer to the tyre than the other.
Also had the same problem but worse on a Diamond Back AscentEx and a flatland BMX as well