Originally Posted by
bobbyl1966
Thank you for your answer. 13-28 cassette do you feel big gaps bettween the gears or not? I mean some people want 12-23 cassette because say is keep good cadence. But me i say you think good 13-28 is much better. i replace tires in one man bike and had 7 speeds cassette 12-28. this man have one bike cannondale R300 have the 52/42 and the 7 speeds cassette 12-28. I have the same bike but mine i buy from pawn shop. the man bike have original wheels and groupset. My bike had different wheels and i change the crank to 53/39 and i put 9 speeds cassette 12-25 but now i am thinking put 13-28 cassette. 53/42 crank is working better for you? is better than crank 53/39?
I don't mind 2 tooth cog jumps even at the small-cog end of the cluster. Sure, 1 tooth is nicer, but I can vary my cadence 5-10% without difficulty. Yes, I would generally find a 53-39 crank to be more useful than a 53-42 crank, but Campy didn't make Super Record with a small enough bolt circle in the early 1980s. Later, they did. I've considered replacing my Super Record Crank with a Chorus 53-39 crank, but frankly, given the terrain that I generally ride that bike, I don't need it, since I'm in better shape now, and my existing gearing on that bike covers most of the terrain I ride. I also own other bikes, one of which has much wider range gearing (9x3 including a front triple that covers 51-39-29) and if I'm riding MAJOR hills, I ride that bike, but less than 20% of my rides put me out of my comfort zone with the narrower range Tommasini. Again, multiple bikes. But if I only had one bike, and I rode very hilly terrain, I would not use just a 7x2 drivetrain, I'd use at least 9x3. That's enough gears for both narrow spacing and wide range.