8 speed cassette differences

[Manonabike]

A Shimano HG70 11-30 cost over 150% more than a Shimano CS-HG51 11-30

What is better with the HG70?

Any ideas? I imagine weight is one of the differences but I can't imagine it would be more than a few grams.

 

[fossyant]

Weight, and finish coating.

TBF, if you want a quality, light weight cassette, look no further than the SRAM 850 cassette - and cheap !

 

[Manonabike]

thanks fossyant, interesting suggestion there.