Interloc Racing has been making top quality parts since 1984. They are now the first to offer a complete cassette that offers a 40t and 42t option. The IRD 10 speed cassette is for those who have made the switch to a 1x10 drive train and want to widen their cassette gear ratio. There are single cogs available in the market that will adapt a cassette for this purpose, but IRD has made this range available as a complete cassette.
Nickel-chrome plated steel cogs, alloy and resin spacers
Alloy spider holds the 2 largest cogs
Cassettes feature 40 or 42 tooth cogs
11-40t - 11,13,15,17,19,21,25,30,36,40
11-42t - 11,13,15,17,19,21,25,30,36,42
10sp Shimano compatible, for use on 8-10 speed freehub bodies
The shifting isn't as smooth as I would like, hence the 3 stars. It works well, especially after I upgraded to a OneUp Radr derailleur cage. However for the money, I think a shimano cassette and an extender would have been a better choice, but at time of purchase I liked the idea of a single unit. Not unhappy with it, but not in love either.
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