Bicycle 130BCD 45-58T Chainring 170mm Crank Road Folding Bike Chain set Sprocket
Crank description: Brand: BUCKLOS Color: Black Material: AL6061 Aluminum alloy Arm Length: 170mm BCD: 130mm Spindle Interface: Square hole Weight: about 503g Chainring description: Brand: BUCKLOS Teeth:45/47/53/56/58T Color: Black Material: AL7075-T6 Aluminium Alloy Bolt Center Diameter: 130mm Outer Diameter:185mm(45T),205mm(47T),225mm(53T),235mm(56T),245mm(58T) For speed:6/7/8/9/10 Speed.