THIS BOLTS TO 50 AND 70 HEADS (TRX90 LIFAN ZONGSHEN ALSO)
THIS STARTS OUT AT 23MM ON THE CARB END DOWN TO 21.5MM WHERE IT BOLTS TO THE HEAD
PIPE, INLET CENTER TO CENTER MOUNTING TO HEAD HOLES ARE 46MM
CENTER TO CENTER TO CARB IS 48MM
THIS HAS A O-RING GROOVE TO THE HEAD
THIS CAN WORK FOR CT90'S IF YOU KNOTCH OUT THE HOLES AND USE FLAT WASHERS UNDER THE BOLT HEADS.. CLICK ON PIC ABOVE WITH THE 2 OVALS
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