The bontrager air rush road mini pumpco2 inflator with a 2 in 1 design which combines co2 inflator and mini pump ultra compact size easily fits in a jersey pocket or seat pack regulator provides safe controlled operation reusable cartridge insulator to protect hands included telescoping pump design inflates tires in a pinch robust aluminium construction super light at 68g includes 2x 16g cartridges and mounting bracket only compatible with presta valves