Can't answer your question about practical experience with the product, but the OP has a set on his Strom and has also been helping me get a set going for my bike as well. The top clamp bolt pattern from the drop down menu on the order form page is 100x38/40. I really, really, really want to add these to my Vee, a 10 mph low side in the sand last fall busted up a mirror and handguard and I really think these would be such a great addition - I am simply having trouble getting my mind around the $230 price tag... one-off quality like these are not cheap, a Colorado man out of labor of love developed these and brought them to market (a very small niche market at that) and all those expenses are not cheap. So yea, bump this thread back up to the top and see if anyone will post pictures of these installed on a Strom. From experience I can tell you if you email Paul (the owner of HDB), he can be a little tough to get ahold, but be patient and he will respond to all your questions.