Rear Sprocket 525 ChainPart Number: 8430038-039
Only high strength materials and hardening can withstand extreme forces transmitted through the drive train of the S1000.
These rear wheel sprockets are made in Germany by Esjot and machined of 16MnCR5 steel and case hardened. These sprockets are for the original 525 chain size, available in two sizes; 44 or 45. Front sprockets are available in three sizes, so that you can change your gearing to suit your riding style and conditions and while retaining the reliability of the 525 chain size.
This item fits the following BMW bike models:
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