British Standard Piston Ring Compressor for 650 c.c. Motorcycles - 70-75mm Triumph BSA

Back in the day we were constantly seizing or just plain wearing out the pistons/rings in our two stroke dirt bikes. I can still smell the “bean" oil in the air!!! No one owned a spring compressor so we were stuck keeping the rings compressed “manually” with a screw driver tip, finger nail, screw clamp, etc. while trying to lower the cylinder in place. It usually worked but not always. There were more than a few “ah F###” moments. So if you don’t want get into a wrestling match with the two pistons on your Brit twin, get a set of these puppies, you’ll be glad you did, makes the job so much easier. Oh and google around, there are some templates/measurements out there for making a piece of wood to fit between the bottom of the pistons and the top of the cases so the pistons stay up while (whilst) you slide the cylinder down.

Just the thing we needed to complete our engine rebuild.

I am rebuilding a 72 Triumph OIF 650 Tiger. In that process I needed ring compressors to install new pistons. The tools I got from your shop worked very well.

Great parts for my vintage triumph project. Thanks !!!

Simple, clean, easy to use. Made well, so it should last.