Why would you want to? just buy the 4446 that comes w/o the adapters and buy the triumph adapters for $19. I think the 4446 is less expensive due to the fact it comes w/o an adapter anyway, then buy the 8840 triumph adapters. ( i think those are the correct numbers) Thats what i did. i mean, if you buy the harley version you're payng for the pegs and adapters you can't use. By the way, i found the switchblade pegs because of the way they are flat, i don't even tend to use the stirrups.They're comforatble even w/o them. Much better than the stock pegs.