Hmm. I'm very late to this party. Have an old 10 speed road bike with friction shifters on the neck. Would love to find a way to be able to shift from flat bars. Don't see anything made anymore for friction shifters. Saw the comment about using index thumb shifters. I would be willing to try that. Does anyone have any experience with this kind of thing? Do you think say Shimano TX30 thumb shifters would have the range to be able to shift to all my speeds? I have a feeling I'm going to be like stuck in between gears with indexing not being as flexible as friction shifting.