Innovation with the new Rear Axle Adjuster
Another solution to the tolerance challenges of Harley-Davidson motorcycles
The quality and precision in mechanical and vehicle construction are crucial factors that significantly influence the performance and reliability of motorcycles. This is particularly true for the well-known “Iron Horses” from Milwaukee – the motorcycles from Harley-Davidson. European standards in mechanical engineering suggest a high level of accuracy and reliability, but it is no secret that some Harley-Davidson models have significant tolerance challenges in their components.
A specific problem concerns the belt tensioner when the rear wheel is loaded. On most Harley-Davidson models, the belt tensioner on the threaded side of the thru-axle carries the full load and causes the rear wheel and axle to be pushed upwards by the generous amount of play in the swingarm - remarkably only on one side. This can lead to the rear wheel sitting crooked, which can not only significantly affect driving stability and safety, but also the belt, which suffers as it is loaded on one side.
To address this problem, an innovative solution was developed: the Rear Axle Adjuster centering rings. These small but effective components help to compensate for the play in the rear wheel axle area and ensure correct and stable positioning of the wheel. The assembly of the centering rings is very simple and can also be carried out by laypeople. With the one-piece models it is not even necessary to remove the thru axle. Simply opening the nut is enough.
These alignment rings are not only a practical but also a cost-effective solution for accomplished Harley riders who want to get the most out of their machines. The first feedback from users shows that this small adjustment has noticeably improved the handling of their motorcycles. The motorcycles ride straighter and the lifespan of the belt can be significantly extended.
For anyone looking for a reliable solution to the well-known problem of crooked rear wheels on Harley-Davidson, these Rear Axle Adjuster centering rings offer a convincing answer. It is an investment that not only increases driving safety, but also takes the driving experience to a new level.
The following kits are available:
Sportster 1991-2003 (2-piece)
Sportster 2005-2007 (1 piece)
Sportster 2008-2013 (1 piece)
Sportster 2014-2020 (1 piece)