JIMS Twin Cam 02 sensor wrenches (tool No. 755) allow users to reach the wide band 02 sensors on 2012 Harley-Davidson Dynas, V-Rods and Softails (front sensor only). Tool No. 756 works on the rear sensor of Softails. Both tools eliminate the need to remove the vehicle’s exhaust pipes in order to reach the band. www.jimsusa.com.