Originally Posted by
acceleration
Haha ok, great! I'm a bit of a newcomer to biking (and bike speak) haha. If you don't mind explaining, what does all that mean?
He is saying that the front two Chainrings on the Secteur Elite 105 are 50 tooth and 34 tooth on the second ring.
Then the rear cassette ranges in tooth size from 12 to 27.
Using the previous explanation I gave you for climbing a hill, you want to be on the smallest front cog, so in this case 34 and the largest rear cog of 27, this gives you a ratio of 1.26(34/27).
The Giant Escape 2's ratio is 0.875(28/32), and for climbing hills, the lower the ratio, the easier the peddling.