deweyhtucker
03-11-09, 09:35 AM
What is difference between Shimano’s HG40, HG50, or HG70 cassettes other than cost?
Bicycle Mechanics - Shimano Cassette Designation?
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HillRider
03-11-09, 09:50 AM
The finish is better and they may use a better grade of steel or better heat treatment as you go up the cost structure. The higher line cassettes have some of the cogs nested together on spiders so they weighs less and the very top of the line (Dura Ace and XTR) have some of the large cogs made of Ti so they save additional weight. Functionally, they are all pretty much the same.
deweyhtucker
03-11-09, 12:04 PM
Thanks for your response.