The Next Level In Performance...
For Arm Pump
I have to admit, when I first saw the Boyesen's ShockOut, I thought it was a gimmick. But Boyesen gave us a few of these and told us to try them out, so we put them on the bikes and didn't pay any mind to them. All the test riders told me they didn't even notice the ShockOut while riding. The test riders rode a lot longer and did not get nearly as much arm pump as they normally get. This thing really works! This product is one of those products that you might not even realize is working - but it really is doing a lot.
Boyesen Website