Tacx Flow Cooling Fan

thingiverse

This is a thing to add a standard 80mm cooling fan to your Tacx trainer. The bolt holes are at 71.5mm spacing and take an M4 countersunk screw (M4 x 35mm in the picture is a bit long - M4 x 25mm would be better). It fixes directly into the 50mm aperture in the Tacx trainer (you need to remove the small circular guard in the centre of your trainer - it just pops out). The push-fit on the STL file is at exactly 50mm diameter - if it's a loose fit, just wrap a thin layer of tape and trim, then it'll push-fit like a dream. Happy (cool) cycling :)