14x50x114 O-ring chain kit Yamaha YZ 250,490 Afam gray

Chain Kit 14x50x114 Afam gray Yamaha YZ 250 and 490

Transmission kit par Chain 520 complete new adaptable for motorcycle cross 250cc Yamaha YZ from 1985 and 1988, 490cc from 1982 and from 1984 to 1990.

This drive train kit includes:

• 1 x 520 rear sprocket
• 1 x 520 front sprocket
• 1 x 520 chain
• 1 x 520 split link
• 4 x Quick Coupling O-Rings

Technical characteristics and dimensions of the chain kit

• Kit brand: Afam
• Drive train type: 520

• Chain brand: Afam
• Number of chain links: 114
• Chain color: gray
• Chain with quick coupler and O-rings

• Pinion brand: Afam
• Number of front sprocket teeth: 14
• Internal sprocket widths: 21.5mm and 25mm
• Sprocket color: gray

• Crown mark: Afam
• Number of rear sprocket teeth: 50
• Crown material: aluminum
• Colour: grey
• Number of fixing holes: 6
• Diameter of fixing holes: 8 mm
• Type of crown mounting holes: countersunk
• Fixing centers: 87 mm, 152 mm and 174 mm
• Inner diameter of the crown: 152 mm
• Dimensions of the crown and pinion detailed on the drawings

Practical advice: to optimise your drive train, you could add a front sprocket to the one supplied in the kit:

• for more acceleration, take a smaller gear
• for higher top speed use a larger front sprocket

To mount a chain with a split link you just need multigrip pliers and perhaps a flat screwdriver. Otherwise you would need a motorcycle chain splitter tool for riveted chains.