Not sure why the promotional photo shows 4 risers. But the resulting "set of 2" is the one below with two big holes in each. The solid risers pictured above could be something else not mentioned in the description. The product looks like the photo (just below). holes 6mm. The upper holes are in the middle at a distance of 4 cm from each other. The distance from the center of the top holes to the center of the bottom holes is 53mm and 63mm respectively. I can't wait to put them on with my new wheels.
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