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Derbi Pyramid Reed Piston Port 77 Race Crank

Derbi Pyramid Reed Piston Port 77 Race Crank

In stock

$149.00

Description SKU: 50376

Because there has not been one available for years, we had a Derbi Race crank to go on your RD, Diablo, or Laguna moped.

It has been a long time coming, but you can now truly rip on your Piston Port or Pyramid Reed Derbi moped without fear. Stuffed, beefy, and ready to go. Drops in like a stock crank.

Big thanks to Jesse for helping in the R&D of this whole thing. Here are some words of wisdom from him: "All you need to do is to make sure you install your var side crank bearing with red loctite" This is to avoid crank sheering from super hi rpms.





  • Manufacturer: 1977 Mopeds
  • Stroke Length: 43mm
  • Compatible Moped Brands: Derbi

Customer Reviews

Nice Crank!
Review by Tyler
(Posted on 1/25/2013)
This is such a nice crank, definitely on par with the old Metrakit cranks.

The description suggests the crank is a bit loose on the variator side like the original PP crank. Paired with new Nachi bearings, this crank was a tighter fit then the Metra. You will need to make a nice puller. Also the cheeks are a bit bigger then stock so if you do not run a case gasket you will need to cut a bit off the cheeks to get it to fit. Or just run the gasket.