Forum bmwbike.com

I've read through some posts on piston markings and picked up some good info. I expected to find the work "vorn" on my pistons but now understand that because the R69S pistons are not offset, there really isn't a front marking. But there is a letter "H" stamped on the crown. Can someone tell me what that means? I failed to note which way the pistons were installed before I removed them. Just wondering if the "H" gives me any clues...

Thanks...Kurt San Antonio TX