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11t to 28t i believe.. The swft website has full bike specs
Sorry, there was a problem. Please try again later.Hey there! The gear ratios for the ZIP from lowest to highest are as follows: 3.00, 2.625, 2.33, 2.00, 1.75, and 1.50. The front chainring is 42T and the rear cogs are 14, 16, 18, 21, 24, and 28T. Let us know if you have any other questions, we're here to help!
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