MEROCA MTB Bike Crankset Double Chainring 34-50/36-52/39-53T Direct

MEROCA Bicycle Crankset Mountain Bike Crank 170mm MTB  With Bottom Bracket Cycling Crankset Parts

CRANKSET 

Color: black and red
Length: 170mm
Material: aluminum alloy
Number of teeth: 34-50T / 36-52T / 39-53T

Weight: about 900g
Note: The weight is weighed by hand and does not include the weight of the packaging box.
CNC machined，GXP direct mounting specifications, high strength
Maximum support 9-11 speed.
Cr-mo and aluminum alloy material, strong impact resistance, uniform force, smooth riding, anodized surface, effectively protect the aluminum alloy body. 
Bottom Bracket description:Size: 41*24*24mm( threaded)Spindle/Bearing inner diameter: 24mmFit BB shell width: 68/73mmFit BB shell inner diameter: 1.37in x 24 TPISpindle Interface Type: Hollowtech IIChain line: 48.5mmBearings: Sealed (3 spacers included)Hollow axle, one piece external bottom bracket for MTB/Road bike,folding bike refitting