Bell GT6 Pro RD-4C Helmet - Titanium JMSTX1920DCX4 Stock engine vacuum pressure is

Stock engine vacuum pressure is 18 pounds

Defender offers Outlaw Wrap-Around Windshields

These new coils mount directly in place of the factory coils and accept the factory connectors

530" Gasket Bore

Heavy Duty 3/8 in

Bell GT6 Pro RD-4C Helmet - Titanium JMSTX1920DCX4 Stock engine vacuum pressure isThe GT6 RD 4C features the same modern and aggressive design as the HP6 RD 4C, developed for racers in closed car environments, featuring a wide eyeport for extended vision with a lightweight premium carbon glass shell. The closed face GT6 RD 4C integrates the latest technology from ZeroNoise including advanced electronics, input for earpieces, and noise canceling microphone to assure outstanding performance, sound insulation and communication