Many of you knew Frank Bowman as the "Ring Master". When we purchased the business to carry on the manufacturing of quality rings we needed a new name. RMJ was decided on because Bjorn has now become Ring Master Junior. He spent many months training and learning the techniques of making the same quality rings that Bowman rings were know for around the world.
WHEN ORDERING YOUR RINGS YOU WILL HAVE AN OPTION FOR GAPPED OR UNGAPPED.
-Gapped- We file the ring ends to a 0.001" gap.
-Ungapped - We leave the ring ends for the customer to file/fit to their satisfaction
*Once our packages have left the UNITED STATES the tracking information is not guaranteed as accurate. It's up to the receiving facilities to update the information. Often times packages take longer to arrive because of being held in CUSTOMS. We make every attempt to locate lost packages from our end when we are notified that this has occurred.
Note there is a ONE week lead time.
We have many other rings available. If you do not see your engine/model listed please contact us.
Lapping a piston ring to fit.
Ring end gap adjustment.
Quality at a fair honest price. Making a good ring is a Skill.
Making a fine ring is an Art! We strive for perfection in an effort to continue what Frank Bowman started many years ago.
RMJ Machine Worx manufactures custom reproduction piston rings for small and vintage engines.
(custom piston rings, bowman rings)
When you order from us, whether it's your first or tenth time, you become part of our family. We hope that your purchase from us becomes the first of many.
We promise to treat our customers with the honesty and respect they deserve. We pride ourselves on the quality of our workmanship and we want customers to feel satisfaction in choosing RMJ Machine Worx for their piston ring needs. We hope you will be a part of our family for many years to come.
Have a question about our services? Just drop us a line. We look forward to serving you!
4106 Dyer Circle, Midland, Texas 79707, United States
Shipping and material costs have gone up and we are doing as best we can to keep costs low. With new regulations, taxes, and tariffs it's a balancing act to keep business and customer costs fair. We continue to adjust and pivot as needed.
AUSTRALIA will only be USPS EXPRESS