2021 KTM 125 SX Engine Components - Dennis Kirk

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1 4 HR : 3 3 MIN : 4 6 SEC

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Over 185,000 Parts and accessories in stock

Free Same-Day Shipping on orders over $89 Tech Support Backed by Years of Riding Experience

2021 KTM

125 SX

Drive Type: Chain
Front Tire Size: 80/100-21
Rear Tire Size: 100/90-19
Spark Plug: BR9ECMVX
Chain Size: 520
Chain Links: 118
Front Sprocket/Pulley Teeth: 13
Rear Sprocket/Pulley Teeth: 50
Battery: YTX4L-BS

For reference only, please consult your owner’s manual to confirm your sizes

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