Mini bicycle tyre pump Air pump, suitable for mountain bikes, BMX, cross-country bikes, hybrid bikes, and strollers. Unique double piston construction: The bike pumps for all bikes use a dual-piston construction. Cycle pumps for bikes in volumetric mode, both pistons can move, which can increase the inflation speed by 35%. In the high-pressure mode, it can continue to inflate easily under very high pressure, which can reduce energy by 35%.
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