Chain kit for Bultaco 50 Astro SM.
The kit includes:
- Chain: DID 420D.132 (Did Japan / pitch 420 / 132 links / black)
- Front sprocket: 13 teeth (Code: JT.JTF1129.13)
- Rear sprocket: 53 teeth (Code: JT.JTR1132.53)
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