Acid brushes for tubular gluing are cheap and perfect for the job. Available at your hardware store.
How to glue a tubular cyclocross tire - BikeRadar
How to glue a tubular cyclocross tire - BikeRadar
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How to glue a tubular cyclocross tire - BikeRadar
Mechanical Mondays: Gluing Tubies, How Clean Is Clean Enough? - Cyclocross Magazine - Cyclocross and Gravel News, Races, Bikes, Media
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