Rated 4 out of 5 by Anonymous (Almost) Excellent
This is a high quality product which I am really please with. I use it on a (medium size, 56cm) Kona Paddy Wagon road bike with sloping top tube. One minor issue, the QR is very bulky, and as other reviewers have noted, can brush your leg (which is why I only gave it 4-stars). I think this would be the same with any of the three different versions, as the clamp is always basically in the same place. The solution is simply to get an M5 x 40 bolt, and a couple of washers, to put in place of the QR lever.
The Topeak website describes the sizing of the different models as follows:
MTX BeamRack (A-Type) - For XS and S size frames
MTX BeamRack (E-Type) - For S and M size frames
MTX BeamRack (V-Type) - For M and L size frames
I could have picked a V-type, but the E-type is fine on my 56cm / M frame.
16 September 2012
Rated 4 out of 5 by Anonymous Useful piece of kit
Used this on a summer expedition to the alps to carry my tent. Had it clamped on my carbon seatpost and did a lot of fairly technical xc with it. A little on the heavy side, but it's reassuringly strong. I didn't like the rubber/elastic strap that came with it, but it might be useful for smaller loads. The quick release was great for helping set up camp quickly or taking it off for chair lifts.
01 January 2012
Rated 5 out of 5 by Anonymous Stable rack
I've used this to carry the laptop bag with a full load. When tightened up properly it does not swing or move. I have used it on a carbon seat post and though the instructions recommend against this I have had no problems to date. A great rack that's is to attach.
09 April 2010
Rated 4 out of 5 by Anonymous Sturdy rack
This rack is sturdy and easily survived a crash where a lot of the force was transmitted through it! I wish that Topeak would provide details on the angle to the seat post and the A and V type offsets. I bought the E type but should have gone the V type. Consequently it attaches at the bottom of my seat post which has the benefit of putting less strain on the seat post but it does mean that my leg brushes past the QR lever every rotation which can get a bit annoying on longer rides. That said, I did a 200km Audax ride with this setup and it wasn't really a problem.
I only wish it were a little lighter as combined with a MTX bag it makes for a reasonably heavy setup. I've ended up using a handlebar bag where possible (including a recent 400km Audax ride) as this saves a bit over a kg and provides a more equal weight distribution on the front/rear wheels.
15 November 2009