Drive arrangement for a bicycle and tool

A drive arrangement for a bicycle, comprising

• a chain;
• a front sprocket which is rotatable about a sprocket axis and has a multiplicity of teeth which are constructed for engagement with the chain;
• a rear wheel sprocket arrangement rotatable about a sprocket rotation axis and comprising a plurality of sprockets which are coaxial with respect to the sprocket rotation axis, the plurality of sprockets arranged with axial spacing from each other and having different numbers of teeth which are constructed for engagement with the chain, at least some of the plurality of sprockets constructed as a sprocket dome,
• wherein the sprocket arrangement has a gear range quotient which is formed by division of the number of teeth of the sprocket having the largest diameter by the number of teeth of the sprocket having the smallest diameter, and has a packing density quotient which is formed by division of a number of sprockets in the sprocket arrangement by the axial spacing of axially outermost sprockets from each other measured in millimeters, and
• wherein the sprocket arrangement has a gear range packing coefficient, formed from a product of the gear range quotient and the packing density quotient, is greater than 1.25, and at least a portion of the sprocket having the largest diameter overlaps at least the adjacent next smallest sprocket in the axial direction;
• and
• a rear derailleur.