Trekking bars will take all the control levers off your straight/riser Bar Hybrid.
both are 7/8" tube [22.2mm] off the center that being 1" [25.4mm]
my bikes with Rohloff hubs both have trekking bars, [Koga WTR, BiFri PLlama]
the R'off grip shifter is made for That diameter.
I have some drop bar bikes too, derailleur drive train on those. [Bar end shifters]
Last edited by fietsbob; 07-27-12 at 11:25 AM.