Originally Posted by Steve B.

The Topstone aluminum now has a GPX group I believe and simply one of the best bikes (mines a 105 group) I've owned in 30 years. I tend to use my road wheels/tires and ride asphalt, its a great regular road bike. I'm less impressed with the carbon Topstone which has a funky rear suspension and which has its rear wheels in an odd dish to make the wheel fit the rear with the suspension. Thats a bit funky for me, though folks owning them on the Topstone FB page love them. If I were looking at a carbon gravel, I would look at a more traditional design.