I have this bike: http://www.cxmagazine.com/blue-bicycles-norcross-al-cyclocross-bike-review, with a 48/34 chainring and 11-26t cassette. I'd like to add some lower gearing.
SRAM offers at 11-32 cassette (https://www.sram.com/sram/road/products/pg-1050-cassette), and it's supposedly for Apex, but I've been told I'll need a new rear derailleur as well - is this true? And will the 11-32 cassette work with the compact crankset? Thank you!