Racing crankshaft - Aprilia RS 50 / RX 50 / SX 50 / Derbi GPR 50 / Senda 50 / Gilera RCR 50 2T (D50B) - Athena

Racing crankshaft from manufacturer Athena for motorcycles equipped with the D50B type 50cc 2-stroke engine. Among the most important applications are: Aprilia RS4 50 (2011-2013) / RS4 Replica 50 (2014-2019) / RS 50 (2006-2010) / RX 50 (2006-2020) / SX 50 (2006-2020) / SX Limited Edition 50 (2014-2017) / Derbi GPR Nude 50 (2006-2008) / GPR Nude Sport 50 (2006) / GPR Nude Tuning 50 (2007-2008) / GPR Racing 50 (2006-2013) / GPR Replica 50 (2006-2008) / Senda HYP DRD EVO 50 (2008-2009) / Senda HYP DRD EVO LTD 50 (2008) / Senda R DRD Pro 50 (2005-2011) / Senda R DRD Racing 50 (2005-2012) / Senda R DRD X-Treme 50 (2010-2017) / Senda R X-Race 50 (2006-2010) / Senda R X-Treme 50 (2006-2020) / Senda SM DRD Pro 50 (2005-2011) / Senda SM DRD Racing 50 (2005-2018) / Senda SM DRD Racing LTD 50 (2007, 2018) / Senda SM Limited 50 (2018) / Senda SM Racing 50 (2018-2019) / Senda SM X-Racer 50 (2006-2010) / Senda SM X-Treme 50 (2006-2020) / Gilera RCR 50 (2006-2020) / SMT 50 (2006-2020) / SMT Drifting 50 (2019-2020) / SMT Racing 50 (2011-2012) / Suzuki Valenti N01 50 (2015-2025) / N01 Low 50 (2022-2025) / RME 50 (2012-2020) / RME Factory 50 (2015-2022) / RME Race 50 (2015-2024) / S01 Scrambler 50 (2022-2025) / SME 50 (2012-2022).

Technical specifications:
- big end bearing: 16x22x12 mm;
- distance between connecting rod centers: 90.00 mm;
- crank radius: 20.00 mm;
- net weight: 1.78 kg;
- flywheel shaft diameter: 20.00 mm;
- flywheel shaft length: 57.00 mm;
- pulley shaft diameter: 20.00 mm;
- pulley shaft length: 50.00 mm;
- width between crankshaft webs: 46.00 mm;
- small end bearing: 12x17x15 mm;
- piston stroke: 40.00 mm;