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Direct replacement second reduction gear for the Bafang Ultra M620 motor systems
Customize your eBike with new pedals
it combines reliability with performance
and motor performance with advanced firmware optimization
Essential for compliance and identification
Biktrix Narrow-Wide Chainring Size:30T BBS02 Direct replacement second reduction gearImprove your hill climbing ability with a smaller chainring! Its narrow wide tooth pattern prevents chain derailment and increases longevity. The rings are crafted with CNC machined 7075 aluminum for unmatched precision and durability. Available with 30T for the BBS02 and 30T and 42T for the BBSHD. Spacers are available to adjust the chain line as needed.
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