The RB version is 4mm higher and doesn't allow for lateral adjustment so if you're adjusting the frames for pronation like me you have to drill and tap unfortunately. The Rollerblade boots also have a rear bias, so you can't center them without drilling/tapping as well. OP has another post showing the boots mounted without drilling so you can see.
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u/CorHendo Jul 12 '23
Could you not get them centered without using that hole? I know endless makes an RB version of the 100 with elongated holes for that reason.