NOT KNOWN DETAILS ABOUT BIKE PARTS UK

Derailleur Arm – the arm which extends in the rear derailleur, with pulleys to feed the chain via. The derailleur arm is spring-loaded to eliminate slack from the chain when applying scaled-down gears.Most engines have a gearbox with up to six or maybe seven ratios. Reverse gear is at times uncovered on hefty tourers, one example is the Honda GL1