Ask a Mechanic | Wide Range Cassettes With Shimano Road Derailleurs Ask a Mechanic | Wide Range Cassettes With Shimano Road Derailleurs Daniel2015-12-16T17:01:42-08:00 Question: I have an 11-27 cassette but wondered if a 12-30 would fit my Ask a Mechanic | Wide Range Cassettes With Shimano Road DerailleursDaniel2015-12-16T17:01:42-08:00