Yokomo mr4Bc wheels

[chrisstransam]

What is the difference between the Yokomo mr4bc wheels and the Yokomo mx4 wheels. Is it the hexagon drive? The original mr4 BC had the hexagon drive they had a 10 km offset, and a 6.5 km offset. I have the special 3 eared drive. I had thought about buying the original drives. Has any one converted to the bmax drives on the BC or mx4

[superdez]

The wheels are the same, the hubs are different in that the MX 4 hubs support up to six mounting screws the MR4BC has three. The centre hole diameter is larger in the MR4BC as it used a larger diameter axle than the MX4.

[mr. ed]

The wheels of the mr4-bc special were different from the mr4-bc (which were the same as the MX-4: big hex-shaped fit).
As far as I know you can not fit the special wheels on the standard bc or mx4. They are easy to recognize from the front too: mx4 and bc are spoked, bc4 sp is a plain disc.