The Zee range bridges the gap between the Shimano Saint downhill and SLX trail drivetrains, though it is predominantly seen on DH bikes.

The Zee drivetrain is 1x specific and does not feature it's own dedicated cassette, Shimano recommend a road 105 cassette for DH use or an SLX cassette for trail applications.

The Zee brakes are also geared more towards the downhill riders and and made to be used in short aggressive bursts.