Athena Piston Kit Aluminum Alloy For Yamaha YZ 125 97-18 S4C05800001A bmw-r-1100-gs-abs-1998-esi5208684 Medial facing side incorporates TPU

Medial facing side incorporates TPU panel with specially designed sculpturing for maximum grip contact with bike and improved heat- and abrasion-resistance

Enduro casing has a durable single ply carcass construction with Apex to prevent snakebites

Billet Aluminum Vendor Part Number 07-958 Application Driver Base Colour Black

Electronic dwell control for maximum ignition energy at high rpm and reduced current draw at low rpm

Athena Piston Kit Aluminum Alloy For Yamaha YZ 125 97-18 S4C05800001A bmw-r-1100-gs-abs-1998-esi5208684 Medial facing side incorporates TPUBrand ATHENA Engine Type 2 Stroke Piston Size Metric Standard Size A Compression Ratio Imperial 14. 0: 1 Piston Diameter Metric 57. 94 mm Product Name Piston Piston Size Standard Size A Piston Diameter 57,94 mm Style Big Bore Vendor Part Number S4C05800001A Compression Ratio 14,0: 1