Wide Gear Ratio
Broad terrain riding support
Distance travelled per crank revolution (700C)
The diagram above shows distance traveled per crank revolution.
If we compare with chainring/sprocket combination rear derailleur system offers, 1st gear of SG-S7001-11 offers as same gear as 24 tooth for chainring, 23 tooth for sprocket. 11th gear of SG-S7001-11 offers as same gear as 53 tooth for chainring, 13 tooth for sprocket. It covers wide range as a total.