Stay Strong REACTIV 2 Disc Wheelset. REACTIV 2 Alloy Rim features an aero profile design with a pinned joint and Stay Strong overflow graphics. The REACTIV 2 rim is laced to the sealed Disc REACTIV 2 hub at the rear with 6 pawls and 180 points of engagement. 17T cassette included. The front is laced to a sealed alloy 10mm REACTIV 2 hub. Brake disc kit and adaptor sold separately.