Campagnolo Cass CPY Chorus 11S Freewheel

Cog Sizes: 11 x 23 t, 11 x 25 t, 11 x 27 t, 11 x 29 t, 12 x 25 t, 12 x 27 t, 12 x 29 t
Cog Material: nickel-chrome treated steel
Carrier Material: alloy

The Campagnolo Refrain 11 Cassette is comprised of metal, not like its Document and Tremendous Document siblings. This implies a small weight penalty, sure, 29 grams over Document and 53 grams over Tremendous Document, however the tradeoff is that metal wears a lot more slowly than the titanium used within the upper-finish fashions. So, in case you are driving Campy since you love how it works over the lengthy haul, go for the Refrain cassette.
Cog Sizes: 11 x 23 t, 11 x 25 t, 11 x 27 t, 11 x 29 t, 12 x 25 t, 12 x 27 t, 12 x 29 t
Cog Subject matter: nickel-chrome handled metal
Service Subject matter: alloy
Hub Kind: Campagnolo
Claimed Weight: [11x23t, 11 speed] 230 g