Part: Piston Rings (Standard / 0.5 mm over size / 1.0 mm over size) for Honda CB175 / CL175 Scrambler / SL175 – Sold Individually
Why You Need This: In every engine's life comes a time when an overhaul is necessary as with the long miles of service oil leaks happen and compression numbers drop. The Honda CB175 / CL175 Scrambler / SL175 is no exception. Luckily, many of the vintage Honda CB175 / CL175 Scrambler / SL175 engines do not need the cylinders bored as they are within service limits (page 29 in the Honda Factory Service Manual) in which case a light hone along with a fresh set of piston rings will get your Honda CB175 / CL175 / SL175 back to factory spec, ready to get back on the road. However, if the cylinders measure outside the service limit, they will need to be bored oversize. This will require you to install new oversize pistons and matching oversize piston rings along with a new wrist pin and retaining clips.
Piston Ring kits are offered in three different sizes for the CB175 family of engines:
Standard (52 mm bore)0.5 mm Over Size1.0 mm Over Size
Standard (52 mm bore)
0.5 mm Over Size
1.0 mm Over Size
Our standard piston ring kits are designed to fit the factory Honda pistons in standard size (52 mm) used in the Honda CB175 / CL175 / SL175 engines.
Oversize piston ring kits are available in 0.5 mm and 1.00 mm oversize, designed to fit factory Honda oversize pistons as well as our very own "Pulsar" series oversize pistons.
Our modern piston rings are designed to improve sealing, ease of installation and ensure long service life.
Each piston ring set includes:
A gas nitride coated forged steel top ring (silver). This is a hard coating on all surfaces of the ring which gives it increased wear resistance and a lower coefficient of friction on the cylinder walls.
Steel phosphate 2nd ring (black).
An easy-to-install modern nitride three piece oil ring, which makes installation onto the piston and cylinder assembly A LOT easier than the old style brittle cast iron one piece oil rings.
Our piston ring sets are sold individually, you will one set per piston, or 2 sets per engine. We suggest getting a fresh set of piston pins and clips along with an overhaul gasket kit to get the rebuild done right.
Installation Tip: Cylinders must be measured and checked for taper, roundness and top ridge. To complete this, you will need a micrometer and either the telescoping gauges or dial bore gauge. If everything measures out then the cylinders must be cleaned up with a cylinder hone to accept new rings. We always recommend to double check machine work. Oil everything well upon assembly. Top ring has a silver face. Top and second rings are installed with the "R" marking on the rings facing up towards the crown of the piston. Oil ring is installed with the wavy spacer first and then thin rail on the top and bottom of the wavy. It makes a sandwich.