Welcome to Ossa Engineering

We Keep the Legend Alive !

I have now retired from my regular job and will be traveling around the USA with my wife from time to time.  I will still work on OSSA engines and related parts, but there will be time gaps for that work. The OSSA  part of my life was always a hobby after I quit working for Yankee Motor Co. So, you can still send me an email to ossaengineering@mchsi.com (I can check my emails while traveling) or you can call my cell phone (or send a text) to 319 654-2202 and I will get back to you as soon as I can.  I will not always answer the phone, but I will get in touch with you later. Thank you for your understanding.

Years ago, Ossa motorcycles were the envy of the racing world. Perennial underdogs, they proved themselves time and again, winning with ingenuity, speed, and reliability.

Today, Ossa Engineering is committed to resurrecting these renowned machines. Our mission is to provide any service required to make your Ossa fast, agile, and efficient again, just like the day it was born.

Most vintage and classic OSSA models can be brought back to running condition. The OSSA Pioneer, Super Pioneer, Plonker, Mick Andrews Replica (MAR), Explorer, Stiletto MX, Stiletto TT, Dick Mann Replica (DMR), ST-1, Phantom, Desert Phantom, Wildfire and the Yankee 500Z are some of the models that we have worked with.

Contact us today at (319)393-9767or by email from our contact page to keep your OSSA making history, rather than being history.

Don’t forget to check out our technical page. A large amount of information is there to keep your OSSA running. Included are factory service bulletins, ignition timing facts, porting diagrams and a full 5 speed factory service manual.

All OSSA models that were produced (not just USA) are shown on the models page. Look for yours to see how many were made.

Below are pictures of before and after a street bike build. Give OSSA Engineering a call to find out how easy this can be done. The Build a Bike page has more information on this build up. There are more pictures in the gallery section also.

You can build a street bike like this

From an old Ossa like this:

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