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Sprocket JT. Aluminium Ultra-Light 251 - 520

JT. Aluminium Ultra-Light 251 - 520 Sprocket Ref : JTC00513A / 1096568003

JT. Aluminium Ultra-Light 251 - 520 Sprocket

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JT. Aluminium Ultra-Light 251 - 520 SprocketRef : JTC00513A / 1096568003

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Description
Compatible motorbikes
Questions and answers

DescriptionJT. Aluminium Ultra-Light 251 - 520 Sprocket

Product details :

Features

Manufacturer Ref: JTA251.50BLK — JT SPROCKETS ultra-light aluminum sprocket 251 in 520. Designed for replacing the sprocket or modifying the gearing of your transmission, this part is aimed at motocross riders as well as roadster enthusiasts looking for a lightweight and precise product.

Material: 7075-T6 Aluminum (Ergal)
Color: Black
Number of Teeth: 50
Chain Pitch: 520
Type: Standard / ultra-light

The JT Sprockets JTA251.50BLK sprocket is presented as a lightweight option for the rear wheel, maintaining the standard geometry suitable for 520 chain kits. Its Ergal design offers a good mass/stiffness ratio, useful for those looking to reduce inertia without radically changing the behavior of the transmission.

Compatibility: be sure to check the mounting pattern and spacing before installation. Examples of models commonly associated with this reference: YAMAHA YZ 450 F (2026), FANTIC XX 125 (2022), GAS GAS EC 300 F (2015). Replace the sprocket with a professional or follow the manufacturer's recommendations for safe installation.

Technical information :

Reference

JTC00513A / 1096568003

Rear sprocket type

251

No transmission chain

520

Number of teeth (crown)

Type of crown

Ultra-light

Number of teeth

50 teeth

Material

Aluminum

Color

Black

Compatible motorbikes

YAMAHA69 compatible models

YZ 125 (CE03) - 1999/1999YZ 125 (CE15) - 2005/2005YZ 125 - 2024/2026YZ 125 (CE16) - 2006/2023YZ 125 (CE05) - 2000/2000YZ 125 (CE09) - 2002/2002YZ 125 (CE13) - 2004/2004YZ 125 (CE08) - 2001/2001YZ 125 (CE10) - 2003/2003WR 125 Z - 1999/2003TT-R 125 LW BIG WHEELS E (CE21) - 2021/2021TT-R 230 - 2005/2006YZ 250 FX - 2015/2024YZ 250 F - 2022/2026YZ 250 F (CG39) - 2017/2018YZ 250 (CG23) - 2006/2023YZ 250 - 2024/2026WR 250 X (DG20) - 2008/2014YZ 250 (CG08) - 2000/2001YZ 250 (CG05) - 1999/1999YZ 250 (CG13) - 2003/2003YZ 250 (CG17) - 2004/2004YZ 250 (CG12) - 2002/2002YZ 250 (CG20) - 2005/2005YZ 250 X - 2016/2020WR 250 F (RE25) - 2016/2019WR 250 F ENDURO GP (RE25) - 2018/2018WR 250 R (DG20) - 2008/2016WR 250 F - 2020/2022YZ 250 F (CG14) - 2003/2003YZ 250 F (CG40) - 2019/2021WR 250 F (CG30) - 2008/2014WR 250 F (CG36) - 2015/2015WR 250 F (CG26) - 2007/2007WR 250 F (CG11) - 2001/2002WR 250 F (CG16) - 2003/2004WR 250 F (CG22) - 2005/2005WR 250 F (CG24) - 2006/2006YZ 250 F (CG10) - 2001/2002YZ 250 F (CG34) - 2014/2016YZ 250 F (CG33) - 2010/2013YZ 250 F (CG25) - 2006/2006YZ 250 F (CG27) - 2007/2009YZ 250 F (CG21) - 2005/2005YZ 250 F (CG18) - 2004/2004YZ 400 F (CH03) - 1999/1999WR 400 F (CH04) - 1999/2000WR 426 F (CJ02) - 2001/2002YZ 426 F (CJ01) - 2000/2002WR 450 F ENDURO GP (RE45) - 2018/2018YZ 450 FX - 2016/2024WR 450 F (CJ04) - 2003/2004WR 450 F (CJ07) - 2005/2005WR 450 F (CJ09) - 2006/2006WR 450 F (CJ12) - 2007/2007YZ 450 F (CJ10) - 2006/2009YZ 450 F (CJ15) - 2010/2013YZ 450 F (CJ21) - 2016/2017YZ 450 F (CJ22) - 2018/2018YZ 450 F (CJ23) - 2019/2021YZ 450 F (CJ18) - 2014/2015YZ 450 F - 2022/2026YZ 450 F (CJ06) - 2005/2005WR 450 F (CJ13) - 2008/2011YZ 450 F (CJ05) - 2004/2004YZ 450 F (CJ03) - 2003/2003WR 450 F (RE45) - 2018/2020WR 450 F - 2016/2017 - 2021/2023WR 450 F (DJ03) - 2012/2015

GAS-GAS4 compatible models

EC 250 F SIX DAYS - 2012/2012EC 250 F REPLICA CAMI - 2014/2014EC 250 F - 2010/2015EC 300 F - 2013/2015

HONDA3 compatible models

FX 650 VIGOR (RD09) - 2000/2000SLR 650 (RD09) - 1997/1998NX 650 DOMINATOR (RD02) - 1988/1990

FANTIC2 compatible models

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

RIEJU1 compatible model

MARATHON 250 - 2010/2012