Top 5 Best mountain bike rear derailleur to Purchase (Review) 2017

Whats the best mountain bike rear derailleur out there in the market place?

Do you already have a good idea which mountain bike rear derailleur to buy?

If not our list of top best mountain bike rear derailleur will help you a lot.

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1. Generic 6/7/8-Speed Long Cage Mountain Bike Cycling Bicycle Rear Derailleur Black Color (Click Link to Check Price on Amazon)
Editor’s Rating : 9.2 out of 10
100% Brand new and high qualityGreat transmission function