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JT Sprockets Front Sprocket 14 Tooth for Gas Gas EC 250F & EC 300F, Yamaha YZ 125 & YZ 250F & WR 250F, Fantic XX/XE 125
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Source: Parts Europe · 15-10-2026. Check the exact variant and application notes.

Product description
The JT Sprockets 14-tooth front sprocket is a durable replacement for your off-road motorcycle's final drive. It is suitable for the listed Gas Gas EC 250F/EC 300F, Yamaha YZ125, WR250F and Fantic XX/XE 125 models, providing reliable, consistent power transmission.
- Tooth count: 14 teeth for balanced gearing and acceleration.
- Material and construction: hardened steel, CNC-machined for an accurate fit and long service life.
- Chain compatibility: designed for standard 520 chain systems and efficient power transmission.
- Brand and part number: JT Sprockets, JTF1590.14SC.
- Installation: replaces the original front sprocket without changing the chain line.
- Design: carefully shaped cut-outs support heat dissipation and durability.
This 14-tooth front sprocket provides consistent engagement with the chain at different speeds and on varied terrain. Hardened steel supports durability during regular racing and enduro use. It is suitable for riders fine-tuning their gearing for starts, pulling power and reliable drive on rough ground.
Specifications
Manufacturer and product safety
Manufacturer
JT SPROCKETS
30 Optima Park
DA1 4QX Crayford, Kent
GB
sales@bikealert.com
EU responsible person
Parts Europe GmbH
Conrad Röntgen-Str. 2
54332 Wasserliesch
Duitsland
sales@partseurope.eu
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