Total Seal Classic Steel Advanced Profiling Piston Rings 4.625" Bore File Fit 0.043 x 0.043 x 3.0 mm Thick - Standard Tension HIKZ19XXS no compromise fit

no compromise fit

AN-10 size with a 40 micron stainless steel element and black anodize finishTo us

The halo protrusions at the top provide additional head support in the case of a side impact which is why this seat is considered Full Containment

Type D Sandwich Adapter with 3/4"-16

Note different helmet sizes take different shield sizes

Total Seal Classic Steel Advanced Profiling Piston Rings 4.625" Bore File Fit 0.043 x 0.043 x 3.0 mm Thick - Standard Tension HIKZ19XXS no compromise fitProduct Description: Piston Rings Classic Steel Advanced Profiling 4. 630 in Bore Drop in 0. 043 in x 0. 043 in x 3. 0 mm Thick Low Tension Steel Chromium Nitride 8 Cylinder Total Seal is known for their piston ring sets. They offer a wide selection of off the shelf options and also offer and the ability to custom order ring sets to meet your specifications. Total Seal also has a full line of tools, testers, and lubricants to aid in piston ring