Kathmandu with Bosch performance line cx motor and mounting bolts are coming loose every 100km. Tried locktite and 25NM torque to no avail. last ride battery error 610 & 640 appeared, but problem was loose engine bolts causing motor to flex and disrupt connections. Every time i remove the bottom cover, i find screws that have come loose. Am i doomed to remove and inspect cover before/after each long ride?