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The Shimano 1057S Spacer (B) is a vital component designed for bicycle gear systems. Designed by Shimano, this spacer is essential for ensuring proper spacing and function in various setups.
This spacer helps maintain effective gear shifting and enhances overall bike performance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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