This is a SunTour Sprint CW-7500 crankset. Specifications:
Crankarm length: 170mm
BCD: 130mm
Bottom bracket mount: ISO square taper
Chainring teeth: 53/42t
Rear speeds: 6/7/8s
Measured weight: 685.7g
The chainring teeth appear to be in good condition; however, it is difficult to assess their true condition without specialized equipment, as I did not ride with this crankset. Otherwise, this crankset is in good condition with no damage compromising its rideworthiness and no scuffs or scrapes inconsistent with a used bicycle part. Note that this disc brake rotor does not come with the dust caps. Yes, this crankset has an ISO square taper. I checked. VeloBase is wrong. Thank you for your consideration. If you have any questions or concerns, please do not hesitate to ask.