Review on Marathon Purpose Utility Centered Bearings Tires & Wheels by Jason Hayes

Purchased to upgrade the wheelchair's front wheels from 7"x1" to 8"x2" (for smoother and safer driving on uneven/cracked surfaces). The only difficulty came from trying to use the stock 5/16" OD axle bolt without the 1/2" OD adapter socket. An attempt to minimize the resulting misalignment by tightening the banjo bolt eventually resulted in a bearing failure. prematurely (due to excessive axial loading). I had to order a new bearing and fit a 1/2" OD socket on the AOK. Very happy now.