<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1492110421353_8633"><span></span></div> <div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1492110421353_8754" dir="ltr">What are you psubbers with MK101 motors using for air compensation tubing? The O.D. of the MK101 shaft knob is 1.385 inches or 35.179mm. I'm having a hard time finding a supplier of 1.375 inch I.D. hose which should be able to fit over the shaft knob after heating and some persuation, should I decide on an air compensation for the motors. In lieu of finding some inexpensive tubing of this size, are there any off-the-shelf nipples of the correct thread that be threaded into the shaft knob to reduce the hose size?</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1492110421353_8754" dir="ltr"><br></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1492110421353_8754" dir="ltr">Jon</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1492110421353_8754" dir="ltr"><br></div></div></body></html>