Are 8 And 9 Speed Cassettes The Same Width? - Beau Turner Youth Conservation Center

At first look, the 8 and 9 speed cassettes appear to be very similar, but can they be interchanged with maintaining the bikes regular operation. A novices ability to differentiate these components is limited, and even experienced riders are frequently perplexed and unable to make decisions. Their breadth is commonly questioned in search of an answer to the possible substitution between 8 and 9 speed cassettes.