I have a 2016 turbo levo fsr 6fattie, purchased 12 months ago. The first bike was soon completely replaced under warranty because of various control issues. The new bike did make noises in the lower bracket, clicking and rattling. Not sure why, but I discovered that if you back pedal a little, the noise would go away. After maybe a 100 miles or so of rides, the noise disappeared. I assumed it was something in the belt drive. I continue to have some quirks in motor performance, which over time I have decided is related to motor temperature rise. Specialized Mission Control says that the motor will start cutting power when you reach 85-90C (185-194F), but I find it often starts as you approach 160F. I have repeatedly tried to get recommendations on tuning parameters, but can't get any answers. The dealer I bought it from, a large locally owned sporting goods store in NJ, when out of business. Specialized leaves a lot of warranty responsibility with the dealer, and so here I am with a $5500 bike, and no service support. The Mission Control people no longer respond to emails, as they had last fall, and Specialized says they have little control over that. I recently learned independently that there are firmware updates for the battery and motor, "required" by Specialized, but it's not covered under the factory warranty. The other dealers in the area have never sold a levo fsr, and only do warranty work on bikes they've sold. So much for customer support from Specialized. I found a shop that's a little farther away that is willing to do the updates, once they have the correct apparatus, but it looks like I'll be paying for it. If you bought a bike from Walmart, you wouldn't expect much support. Buying a $5500 bike from Specialized should have PLATINUM support. Very disappointed on service. Very happy with the ride and handling, and general quality, except for motor control issues on long ascents, which is the only I can get back home! Perhaps firmware updates will improve that. Thanks, rede.