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Sprocket RFX Pro Series Trials Aluminium - 520

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RFX Pro Series Trials Aluminium - 520 SprocketRef : RFX00523A / 1123250006

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Description
Compatible motorbikes
Questions and answers

DescriptionRFX Pro Series Trials Aluminium - 520 Sprocket

Product details :

Features

RFX Pro Series Trials Aluminum Sprocket - 520
Manufacturer Reference: FXRS 91-40 99SV

Designed for motocross/trials riders seeking lightweight and durability, this RFX Pro Series sprocket is CNC machined from 7075 aluminum. Its CAD-optimized profile reduces weight without sacrificing rigidity, while the silver anodization provides a clean look and resistance to harsh terrain conditions.

Material: CNC machined 7075 aluminum
Number of Teeth: 40 teeth (sprocket)
Chain Pitch: 520
Finish: Anodized silver color, laser-engraved RFX logo
Mud evacuation grooves to limit buildup and extend chain/sprocket lifespan
Stiff design for better torsional resistance and tight tolerances for precise chain engagement

Product suitable for demanding off-road practices where gearing and reliability make a difference. Examples of compatible models: BETA EVO 300 2T SS (2023), SHERCO 300 ST FACTORY (2022), GAS GAS TXT 300 RACING (2019). Ideal for replacing a worn sprocket and restoring crisp transmission performance.

Technical information :

Reference

RFX00523A / 1123250006

No transmission chain

520

Number of teeth (crown)

Type of crown

Standard

Number of teeth

40 teeth

Material

Aluminum

Color

Silver

Compatible motorbikes

GAS-GAS21 compatible models

TXT PRO 250 EDITION - 2003/2003TXT 250 GP - 2018/2019TXT 250 RACING - 2018/2019TXT PRO 250 REPLICA - 2013/2014TXT PRO 250 RACING - 2013/2016TXT PRO 250 REPLICA RAGA - 2010/2012TXT PRO 250 - 2002/2014TXT 280 RACING - 2018/2018TXT PRO 280 RACING - 2011/2017TXT PRO 280 - 2000/2014TXT PRO 280 ROJA - 2009/2009TXT 280 GP - 2018/2018TXT PRO 280 REPLICA - 2013/2014TXT PRO 280 REPLICA RAGA - 2010/2012TXT PRO 280 EDITION - 2003/2003TXT 300 GP - 2018/2019TXT PRO 300 REPLICA - 2013/2014TXT 300 RACING - 2018/2019TXT PRO 300 RACING - 2010/2017TXT PRO 300 - 2004/2014TXT PRO 300 REPLICA RAGA - 2005/2012

BETA13 compatible models

EVO 125 2T - 2009/2015EVO 125 2T FACTORY - 2011/2015REV 3 200 2T - 2005/2008EVO 250 2T FACTORY - 2011/2012REV 250 4T - 2007/2008REV 3 250 2T - 2003/2008EVO 250 2T - 2009/2012REV 3 270 2T - 2003/2008EVO 300 2T - 2012/2023EVO 300 4T - 2022/2022EVO 300 2T SS FACTORY - 2017/2018EVO 300 2T SS - 2017/2023EVO 300 2T FACTORY - 2011/2020

SHERCO6 compatible models