After 8 months of intensive testing, we are finally ready to reveal our revolutionary MR105-ZZS bearings, specifically designed and developed for the Clutch Bell.
This is not just a commercial product, but a true innovation created to deliver extraordinary performance in the R/C world.

Every detail has been designed to optimize performance and durability: the inner diameter has been reduced to have a perfect match with almost zero tolerance on the crankshaft, avoiding to ruin the DLC coating.
Additionally, the outer diameter has been calibrated with ultra-precise tolerances to ensure a perfect fit with the Clutch Bell.

The result? Reduced play, an improved clutch feel, and less wear on both the Clutch Bell and the Crown Gear, providing also an improved life of clutch shoes.

Every detail of our MR105-ZZS bearing is the result of months of R&D and field testing, offering not just a product, but a true turning point in R/C performance.

We prefer not to go too much in technical details (such as materials, internal play, lubricants, and fill volume), but we can guarantee that our bearings have an impressive lifespan: 7.5 liters (about 2 gallons) under normal use. In dusty or mud conditions, the lifespan will be reduced to around 4 liters (about 1 gallon).
If you're looking for the best, our MR105-ZZS bearings are what you need. Top performance, reliability, and durability, leaving nothing to chance.

It is recommended to leave an axial clearance of 0.2 mm to compensate for thermal expansions.

The bearings should only be cleaned with a dry cloth, focusing on the outer shields to remove dirt. No further actions are required.

Washing the bearing or adding oil is strongly discouraged, as these actions could remove the internal grease, thus reducing the bearing's lifespan.

Pack of 2 units.