Ryders Co2 Cartridge Bike Bracket is a convenient and effective way to be prepared for a flat when riding The bracket holds 2 CO2 cartridges of either 16g or 12g It fits easily to the bike on the down tube or seat tube under the water bottle cage Key Features Carries two threaded Co2 cartridges 12g or 16g Fitted on the down tube or seat tube under the water bottle cage High tension steel with chromium electroplate for durability

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