Akerly & Childs 4.280" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each HSXSM11PAFIA Fits any ST5 full face

Fits any ST5 full face helmet

Kits hold torsion arm and stop in place if pinch bolts loosen or breakage occurs

1 helmet's rear facing chin bar vents and top vent provide ventilation while preventing dirt and dust from entering the helmet

MAC-IDA Pumper

but also may be used for side and rear windows

Akerly & Childs 4.280" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each HSXSM11PAFIA Fits any ST5 full faceProduct Description: Piston Ring Compressor 4. 280 in Bore Tapered Billet Aluminum Black Anodized Sold Individually Akerly & Childs over 50 years experience in racing provide products for xtreme racing conditions.