The Macneil Primary Sprocket is a fine example of a sprocket. It has killer looks, functions very nicely, and is extremely light. I got this sprocket for fifty dollars Canadian, pretty cheap. The sprocket has eight sprocket bolt holes, for rotation. I have the 33T version, in black, and it has served me well. Although the weight and thin profile, the sprocket held up very nice, and is perfectly straight up to this day. It has experiences 180 bails, fakie bails and big drops.
-Multiple holes for rotation
-Not the cheapest sprocket
-Gives you doubts because of thinness
Overall I give the Macneil Primary Sprocket a 9.5/10.