I need to put fat bars on my 06 sherco 290 because I keep destroying little 7/8 ones. Aside from getting a new upper triple clamp for 1 1/8 bars, has anyone done this:

My link

I converted an 02 290 using similar Pro Taper parts. With the adaptors and a factory Suzuki/ KTM bend bar, the grips come out in almost the same position as stock. I ran them for several years with no issues. The Protaper bar pad even covers up the adaptors. I did not put them on a scale but total weight was also less than the stock bar with cross bar.

I converted an 02 290 using similar Pro Taper parts. With the adaptors and a factory Suzuki/ KTM bend bar, the grips come out in almost the same position as stock. I ran them for several years with no issues. The Protaper bar pad even covers up the adaptors. I did not put them on a scale but total weight was also less than the stock bar with cross bar.

Sweet! I have my stock bars off my 08 ktm 300 i want to put on, the only downer is I cut them down to 29.5" so it may be a bit strange on a trials bike. As a rule of thumb, how wide should bars be on a trials bike?