I have a new (2 weeks old) Trek 7.6FX with linear brakes and Bontrager SSR wheels. The front end chatters HORRIBLY under moderate to hard braking, I can literally watch the front wheel and forks shaking as I brake. I looked around for advice in prior threads, and experimented with toeing in the front brake pads, which just resulted in horrible brake squealing plus the same chatter. It has symmetrical brake pads on it, and I've seen contrasting information on whether symmetrical pads should be toed in or not. Any advice on what else to look at would be appreciated. I've already crashed once due to this chatter, was braking going around a corner and lost the front end on damp pavement, first time I've ever crashed a bicycle on the street. I've pretty much given up using the front brake for now, it's just not safe like this. My old Trek 7500 was nice and smooth on braking, no chatter at all, I'd like to have the new one feel the same way. I'm planning to take it back to LBS this weekend.