The drivetrain are components used for a bike's gearing and braking. This comprises the shifters, crankset, front and rear derailleurs, chain, rear cassette and brakes.
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![SHIMANO CS-5800 105 11-SPEED CASSETTE [12/25T]](http://www.allterraincycles.co.uk/Images/ExtraLarge/153578_1.jpg)
![GIANT E-BIKE DOUBLE PANNIERS [SMALL]](http://www.allterraincycles.co.uk/Images/ExtraLarge/153576_1.jpg)
![GIANT E-BIKE DOUBLE PANNIERS [LARGE]](http://www.allterraincycles.co.uk/Images/ExtraLarge/153575_1.jpg)
