Originally Posted by genejockey

After rydabent was complaining about 'huge heavy cassettes', it occurred to me that while dinner plate sized cogs do add weight, you also lose weight at the other end of the drivetrain, especially because he's complaining about replacing 3x with 1x. So I took a quick look....

So, a Campy Chorus 11 speed cassette is about 236g. Ekar 13 speed cassette is 410g, so there's 174g heavier.

OTOH, the Chorus 2x crank weighs 728g, while the Ekar 1x crank weighs 615, so that's 87g LIGHTER. This reduces the weight penalty for 1x over 2x to 87g.

As luck would have it, the Chorus FD weighs.... you guessed it! 87g! Bringing the total weight penalty to ZERO.