No-Mar & Harbor Freight Upgrade Kit

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No-Mar and Harbor Freight
Balancer Upgrade Kit
by Marc Parnes Products

Now you can upgrade your existing low-quality cones and axle to high quality components specifically designed to fit the No-Mar and Harbor Freight balancing stands.

What Makes Our Components Better?

The axle is a critical part of the balancer. It must be perfectly round, straight, hard and resistant to bending. I chose my axle source very carefully. I ended up with .500" ground and polished tool steel. It is dead-on-size and straight within .001".

In order to support the wheel without any runout or wobble, cones and adapters must be machined to exacting specifications. Their surface has to be dead-on-size and perfectly concentric with the axle bore. If this isn't done correctly you'll be balancing to compensate for the runout in the cones rather than the imbalance in your wheel. I machine my cones and adapters from 6061-T6 aluminum on a CNC lathe producing both the taper and bore at the same time in one setup. What this means is that the axle bore and surface are dead-on. Clearance between the axle and cone is just as critical. My cones are bored .002" larger than the axle for a perfect slip fit.


If you have any questions or comments please email
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International Customers other than Canada Please Note

We ship outside of the US via International First Class Mail with insurance. In the case of loss or damage the insurer requires that we inform them of the loss within 90 days. They also require us to wait 45 days before making an international claim and 60 days when the loss occurs in Italy. In addition they do not insure shipments to the following countries so we will not accept orders from these countries as well. They are: Afghanistan, Angola, Belarus, Bolivia, Bosnia, Bulgaria, Burma, Congo, Cote d Ivoire, Ivory Coast, Croatia, Cuba, Greece, Guinea, Herzegovina, Iran, Iraq, Kosovo, Lebanon, Liberia, Macedonia, Montenegro, Nigeria, North Korea, Paraguay, Serbia, Somalia, Sudan, Syria, Zimbabwe

International Currency Converter

Any pair of cones of your choosing with axle as a replacement for the Harbor Freight cones and shaft. Please include bike year/model in the box to the right. For some reason the Chinese can't get the shaft length consistent. Some are 14" and now some of them are coming shorter. When ordering please tell me how long your original shaft is and I'll match it. Please use the box to the right to note the shaft length.$70 including postage within the USA.
$100 including postage and insurance outside of the USA.
Any pair of cones of your choosing with an 17" axle as a replacement for the No-Mar plastic cones and shaft. Please include bike year/model in the box to the right.$70 including postage within the USA.
$100 including postage and insurance outside of the USA.

If you have application or special mounting questions please email

                                     Copyright 2003-2021 Marc Parnes Products
                                              Last modified: 01/25/2024