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Gear Ratio/Inches Comparison Chart--26, 27.5 & 29er with Cassette/Chainring Combos | Mountain Bike Reviews Forum
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Amazon.com: MDYYD Mountain Bike Cassette Bike CS-HG62-10 Mountain Bike 10-Speed Mountain Bike Cassette Flywheel 30-Speed Flywheel Cassettes & Freewheels (Color : Silver, Size : 11-34T) : Sports & Outdoors
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