Sr suntour nrx fork the sr suntour nrx fork comes with 75mm of travel and hydraulic lockout its 30mm stanchions provide solid and stiff front end with minimal flex a smooth and elegant performing fork giving a comfortable and enjoyable ride shimano acera drivetrain a shimano acera 9 speed drivetrain is what powers the addition up the rough lanes or tracks making it that little bit easier for you to get to your destination the reliable and trusty shimano indexing should keep your confidence