For over 10 years Athena has worked with the best motocross racing teams in the world to develop pistons.
All piston models are made from aluminum alloys and have a perfect blend of nickel, copper and silicon.
Designed and manufactured with the best technology available.
The careful selection of top quality raw materials together with the latest mechanical engineering techniques guarantee the lightness and resistance of the pistons,
for better engine performance and durability. Forged pistons are more temperature resistant and durable than cast ones.
Athena piston sets are supplied complete with rings, gudgeon pins and clips.
Piston diameter: 76.96 mm (A)
Piston Material: Forged
Piston pin diameter: 16 mm
Compression ratio: 13.5:1
APPLICATIONS OF THIS PRODUCT: According to the data provided by the manufacturer, this article is compatible with the following brands, models and years: Yamaha WR 250 F 1cil. CG30W 1HCB Bastidores: CG30W henceforth07923-- 2013 COMPATIBLE WITHYamaha WR 250 F 38,7/28,6 CV, 28,5/21 kw 1cil. CG30W 1HC3 Bastidores: CG30W henceforth06519-- 2011 COMPATIBLE WITHYamaha WR 250 F 38,7/28,6 CV, 28,5/21 kw 1cil. CG30W 1HC7 Bastidores: CG30W henceforth07497-- 2012 COMPATIBLE WITHYamaha WR 250 F 38,7/28,6 CV, 28,5/21 kw 1cil. CG30W 5UML Bastidores: CG30W henceforth01161-- 2008 COMPATIBLE WITHYamaha WR 250 F 38,7/28,6 CV, 28,5/21 kw 1cil. CG30W 5UMR Bastidores: CG30W henceforth03568-- 2009 COMPATIBLE WITHYamaha WR 250 F 38,7/28,6 CV, 28,5/21 kw 1cil. CG30W 5UMV Bastidores: CG30W henceforth05844-- 2010 COMPATIBLE WITHYamaha YZ 250 F 4T 1cil. CG33C 17DJ Bastidores: CG33C henceforth18258-- 2013 COMPATIBLE WITHYamaha YZ 250 F 4T 42 CV, 31 kw 1cil. CG27C 5XCM Bastidores: CG27C henceforth14791-- 2008 COMPATIBLE WITHYamaha YZ 250 F 4T 42 CV, 31 kw 1cil. CG27C 5XCS Bastidores: CG27C henceforth30138-- 2009 COMPATIBLE WITHYamaha YZ 250 F 4T 42 CV, 31 kw 1cil. CG33C 17D6 Bastidores: CG33C henceforth00135-- 2010 COMPATIBLE WITHYamaha YZ 250 F 4T 42 CV, 31 kw 1cil. CG33C 17DA Bastidores: CG33C henceforth13297-- 2012 COMPATIBLE WITHYamaha YZ 250 F 4T 42 CV, 31 kw 1cil. CG33C 17DE Bastidores: CG33C henceforth06765-- 2011