INTER-11

*1: Helical gear 
     Smooth and comfort riding

*2: Disc brake

*3: Needle bearing 

     Higher driving efficiency  Longer durabity  Low maintenance

*4: Roller clutch mechanism

     Quietly riding comfortably  Fast driving performance 

Wide Gear Ratio

Broad terrain riding support

Distance travelled per crank revolution (700C)

*1: tooth chainring

*2: tooth sprocket

*3: Range of gears

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.