Originally Posted by nickf829
i too ride where there is alot of hills, some pretty big, theres some flats and some low rollers but for the most part its just small hill, big hill, bigger hill, repeat. would going from a 11-25 to a 12-27 make sense, or would it not be noticable? what disadvantage would i have to switching?
i have a 9spd 105 rear der. btw in case it matters
I'm interested in this too. I won't be losing anything on the low end, and having a 27 cog instead of a 25 *could* give me a little more of a climbing advantage, but how much?
I was just looking at this the other day:
Link to Ebay Shimano 105 CS-5600 12-27 Cassette