hello, i am looking to buy bar end shifters for my vintage raleigh pursuit. i have put vision tt bars on it, and i need bar end shifters. the rear freewheel is 5sp and groupset is 2. it is friction shifting. i am wondering weather if i buy 10 speed bar end shifters, is one shifter 5 speed and the other 2 speed? if so which ones should i get that are friction compatable?