i assume...the black disc you can see on the wheel is the bearing, which is bolted onto the hub body (the little silver disc in the middle). The discs on the forks then slot over this bearing (possibly by bending the fork legs out to get the wheel on). This would allow you to use larger, and presumably smoother, sealed bearings than having them inside the body of the hub
i assume...the black disc you can see on the wheel is the bearing, which is bolted onto the hub body (the little silver disc in the middle). The discs on the forks then slot over this bearing (possibly by bending the fork legs out to get the wheel on). This would allow you to use larger, and presumably smoother, sealed bearings than having them inside the body of the hub