![Schwinn Sierra MOS (1991) by @dcnso](https://bikerebuilds.com/storage/media/pictures/20201207/68/schwinn-sierra-mos-1991-by-dcnso-cover.jpg)
Parts
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Avid Single Digit 7
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Avid Speed Dial 7
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CST Camber
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Origin8 Pro-Fit
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Race Face Evolve XC SS
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Race Face Narrow wide
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Race Face Respond
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Schwinn Sierra, 1991, 21"
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SRAM NX
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SRAM NX PG-1130
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SRAM NX X-Horizon
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Sun Ringle Rhyno Lite
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