The GX160 engine, being a massed produced general purpose engine has a poor bore compared to engines specifically designed for racing.  Therefore ensuring that you have a good seal on the bore of your engine is key to performance gains.  We normally try to achieve 2-3% leakage of the rings (0% is impossible to achieve due to ring end gap) which normally requires changing rings at least 3-4 times a season for Sprint Racing and every race for Endurance.

Similarly it may be necessary to hone your bore to ensure a perfect seal by Torque Honing or to de-glaze the bore.  New Piston Rings should therefore be fitted after a bore has been honed.

Fitting these piston rings to your engines will make a noticeable difference to bottom end power.  This is also fully within the MSA RATPRO Regulations and is certainly cheaper than having to buy a new engine!

Note:  you need to fit these rings in conjunction with the new UT1 Piston.

Genuine Honda GX160 UT1 Standard Piston Ring Set

Part #13010-Z4M-003

Our Price: £

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Genuine Honda GX160 +0.25 Piston Ring Set

Part #13011-Z4M-003

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Genuine Honda GX160 +0.5 Piston Ring Set

Part #13012-Z4M-003

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Genuine Honda GX160 +0.75 Piston Ring Set

Part #13013-Z4M-003

Our Price: £

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