Warning to all. DO NOT buy a speed concept. I was riding at 20ish mph when out of nowhere the rear drop out snapped. the derailleur then spun around breaking the chainstay and seatstay and bent my wheel beyond repair. Somehow I managed to get away with minor injuries, but it could have been catastrophic. I always thought that Trek was a leading manufacturer of bikes but clearly either my bike had a manufacturing flaw or their engineering department needs to put more thought into rider safety!
Hah! Funny you post this.
The same thing happened to me, but it was on a 2.5 (the aluminum frame). It was working perfectly fine when I put the bike of the car. I drove 20 minutes to the trailhead and took my bike off the rack. Low and behold, my RD was hanging by the chain.
I don't know if it's a manufacturing defect or what, but the guys in my local shop couldn't believe it. Fortunately Trek replaced it with the 7 series frame.
I'll be buying another SC because of it.
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