McPappy Racing
 

 
 

Pinion Gear Tree Caddy

This functional piece of art was designed to last a lifetime. Made with the highest quality materials.
Real 4mm thick carbon fiber designed to save weight, protects the teeth of your pinions, and looks awesome.
The core is machined from a solid block of aluminum. The pins are hardened tool steel.
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The pinions were variably placed to efficiently use the space. It was this second effort that allowed us to fit 36 pinions in the tree!  (64P pinions 34T through 70T)
Yes, we do have plans to do 84P pinion trees next.





A look at the aluminum core:


We are offering them with a variety or preferences:

  • Assembled or unassembled.
  • Orange, Blue, Red, and plain. Contact us about custom colors.
  • Fully loaded with CRC pinions.

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Laser etched into the carbon fiber. No stickers to lose here.

Our assembly includes:

  • Sanding and sealing all of the circular holes and edges of the carbon fiber.
  • Polishing the pins (sandpaper and Simichrome).
  • Cleaning pins and holes with primer and gluing them.
  • Filling the laser etched numbers with Whiteout.
  • Optional pinions unpackaged and installed.

If you assemble the pinion trees yourself, we highly recommend Loctite 7649 Primer and 638 Retaining Compound.  They were specifically
designed for a metal to metal slip fit. Super glue will not work well as it will cure too quickly and you'll end up with uneven pin heights.

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