Combines five major functions an accurate chain latch to firmly hook on the chain to keep it together during disassembly while the latch grooves can also disentangle dropped chain without a mess; a convenient and secure Missinglink storage is suitable for every speed; a heart shape valve core tool corresponding to two sizes to disassemble valves before every ride to easily fill in tire sealant; a tire lever with optimal angle and spoke hook design made from tough, industry-grade plastic.