Complex sentence: While there is no official definition of an Alleycat many messengers feel that Alleycats are a part of their culture that they would like to retain and though they're often happy to see others getting excited about cycling wish they would not refer to their races as Alleycats.
Split into simpler sentences: While there is no official definition of an Alleycat, many messengers feel that Alleycats are a part of their culture that they would like to retain. Though they're often happy to see others getting excited about cycling, many wish they would not refer to non-messenger races as Alleycats.