11-21-2017, 03:04 AM
I have been told that bikes are shipped with at least the front rim and tire assembly dismounted from the bike in the crate, If the wheel assembly is then cinched down tight on the tire, similar to compressing the front forks down for trailering a bike, then there would be a lot of pressure on one spot on the tire for several months until the bike is un crated by the dealer for set up. That might reasonably cause a flat spot on the tire. I did not feel vibration in my bike either, until I hit about 40 mph. at which point the wheel was spinning fast enough for the flat spot on the tire to cause vibration. Based on the experience with mine, I suspect that yours could be a combination of tire balancing, and a flat spot. From what I have seen over the years, frequently ( but not always ) there will be about a 20gm weight attached to a spoke directly across the wheel from the valve stem, to offset the weight of the valve stem. I now have that weight on my front rim. Given yours has a cast mag wheel the weight would be a stick on, if it is needed.