Crank parameters:

Material: aluminum alloy
Specification: BCD 110mm
Handle length: 170mm/172.5mm
Compatible: road bicycle (single disc/double disc)
Colour: Black 
Model: OUNCE-TT-L/R and DESIRE-TT-L/R compatible road bike

 
Chainring Description:
Bolt Center Diameter: 110mm BCD
Teeth: 
53-39T, 52-36T, 50-34T
Material: 
Aluminum alloy
Color: 
Black
Shape: 
Round
Type:
Double speed chainring
Weight: 
138.9g(50-34T)(Different Size Different Weight)
Compatible with: 
8/9/10/11 Speed
Applicable: 
For Road Bike