Those of You who have installed the wunderlich bar risers should consider changing the new longer bolt (M10x90mm) to something with a higer quality classification. The bolt that Wunderlich ships with the risers are the cheapest possible (8.8 quality). When You drop the bike the handlebar often takes up most of the impact which together with the length of the bolt will bend it. My bike has been dropped twice on hard surface so I know it for fact... I went to the hardware store and bought new bolts of 12.9 quality. Costed me $2. Those bolts *should* hold better, but I have no intention of testing them I will send an e-mail to Wunderlich also.