Do you want to buy a MTB Bottom Bracket online? Hollandbikeshop.com has all the Bottom Brackets for Mountain Bikes you’re looking for. A Bottom Bracket is the axle which fits into the Bottom Bracket Shell and to which the cranks with the pedals and the front chain ring(s) are attached. The bottom bracket is the most heavily taxed part of the bicycle, because here the power of the cyclist is converted to the forward thrust of the bike. Therefore, attention to the quality of the materials should be payed when purchasing one. On Hollandbikeshop.com you'll find an extensive and versatile range of Bottom Brackets for the Mountain Bike from brands like Contec, Shimano, StrongLight, Truvativ or Dedacciai.