Sprocket RFX Pro Series Elite Aluminium - 520

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Sprocket RFX Pro Series Elite Aluminium - 520

RFX Pro Series Elite Aluminium - 520 Sprocket

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Description
Compatible motorbikes
Questions and answers

DescriptionRFX Pro Series Elite Aluminium - 520 Sprocket

Product details :

Features

RFX Pro Series Elite Aluminum Sprocket - 520 (Manufacturer part number: FXRS 31-51 99BU): a sprocket designed for demanding riders, ready to withstand mud and intensive riding. CNC machined from 7075 aluminum, it combines lightness and rigidity thanks to an optimized CAD profile and tight tolerances.

Material: CNC machined 7075 aluminum for good mass/strength resistance.
Number of teeth: 51 teeth — compatible with 520 pitch chain (standard type).
Finish: Blue anodization with laser-engraved RFX logo and color code by model.
Design: Mud evacuation grooves to limit accumulation and extend the lifespan of the chain/sprocket.
Practical advantages: Lightweight profile, improved rigidity to reduce twisting, and tight tolerances for precise chain engagement.

Suitable for both Cross and Roadster environments, this RFX sprocket is aimed at riders who want a robust and aesthetic component for their transmission. Compatible model examples: YAMAHA YZ 450 F (2026), FANTIC XX 125 (2022), HONDA FX 650 VIGOR (RD09) (2000).

Standard 520 mounting — check the sprocket and bolt pattern before purchase to ensure compatibility with your machine.

Technical information :

Reference

RFX00582A / 1123323002

No transmission chain

520

Number of teeth (crown)

Type of crown

Standard

Number of teeth

51 teeth

Material

Aluminum

Color

Blue

Compatible motorbikes

YAMAHA64 compatible models

YZ 125 - 2024/2026YZ 125 (CE15) - 2005/2005YZ 125 (CE08) - 2001/2001YZ 125 (CE05) - 2000/2000WR 125 Z - 1999/2003YZ 125 (CE09) - 2002/2002YZ 125 (CE10) - 2003/2003YZ 125 (CE13) - 2004/2004YZ 125 (CE03) - 1999/1999TT-R 125 LW BIG WHEELS E (CE21) - 2021/2021YZ 125 (CE16) - 2006/2023TT-R 230 - 2005/2006WR 250 R (DG20) - 2016/2016YZ 250 F (CG25) - 2006/2006YZ 250 FX - 2015/2024WR 250 F - 2020/2022YZ 250 F - 2022/2026YZ 250 F (CG18) - 2004/2004WR 250 F ENDURO GP (RE25) - 2018/2018YZ 250 X - 2016/2020WR 250 F (RE25) - 2016/2019WR 250 F (CG36) - 2015/2015YZ 250 F (CG40) - 2019/2021WR 250 F (CG26) - 2007/2007YZ 250 - 2024/2026YZ 250 F (CG27) - 2007/2009YZ 250 (CG17) - 2004/2004YZ 250 F (CG34) - 2014/2016YZ 250 F (CG14) - 2003/2003YZ 250 F (CG10) - 2001/2002YZ 250 (CG23) - 2006/2023YZ 250 F (CG33) - 2010/2013WR 250 F (CG30) - 2008/2014YZ 250 (CG13) - 2003/2003YZ 250 F (CG39) - 2017/2018YZ 250 F (CG21) - 2005/2005YZ 250 (CG20) - 2005/2005YZ 250 (CG08) - 2000/2001YZ 250 (CG05) - 1999/1999YZ 250 (CG12) - 2002/2002YZ 400 F (CH03) - 1999/1999WR 400 F (CH04) - 1999/2000WR 426 F (CJ02) - 2001/2002YZ 426 F (CJ01) - 2000/2002YZ 450 F (CJ23) - 2019/2021WR 450 F (CJ12) - 2007/2007WR 450 F (CJ13) - 2008/2011WR 450 F (CJ09) - 2006/2006WR 450 F (CJ07) - 2005/2005YZ 450 F (CJ18) - 2014/2015WR 450 F (DJ03) - 2012/2015WR 450 F (RE45) - 2018/2020WR 450 F (CJ04) - 2003/2004WR 450 F ENDURO GP (RE45) - 2018/2018YZ 450 FX - 2016/2020YZ 450 F (CJ15) - 2010/2013YZ 450 F (CJ10) - 2006/2009YZ 450 F (CJ06) - 2005/2005YZ 450 F (CJ05) - 2004/2004YZ 450 F - 2022/2026WR 450 F - 2016/2017 - 2021/2023YZ 450 F (CJ22) - 2018/2018YZ 450 F (CJ21) - 2016/2017YZ 450 F (CJ03) - 2003/2003

HONDA3 compatible models

SLR 650 (RD09) - 1997/1998FX 650 VIGOR (RD09) - 2000/2000NX 650 DOMINATOR (RD02) - 1988/1994

FANTIC2 compatible models

XX 125 - 2021/2022XE 125 - 2021/2022

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