It is much more inexpensive than seizing up a bearing and potentially wrecking your bike

They work well on bikes with integrated risers and can also be used on taller risers depending on what riding position you prefer

They can also be used as a crossover

This brass adapter nut allows you to use a 3/8" NPT

Richmond Spool Hub - Black Vendor_Exactitude International Co It is much more inexpensiveThe Richmond Spool is CNC'd from 6061 aluminum and can be used with whatever front fork you choose, but mates perfectly with a set of Mullins Super Narrow Trees and narrow axle. Use stock style spokes for a standard spool hub to lace this bad boy up to a rim of your choosing. Machined, polished, and assembled entirely in the USA! The Richmond Spool is CNC'd from 6061 aluminium Hub includes crush sleeve and 2 sealed cartridge bearings for 3 4" axle Hub