Description
- Dual stage reeds
- Minor change gives major H.P. improvements
- Faster opening and closing
- Greater low pressure (Low-throttle) response
- Greater velocity and flow area
- Longer overall life
- No engine damage if broken
640 made by Boyesen
Motorcycle Reeds
$41.95
For 78-89 Yamaha IT/YZ 250-490
In stock
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