* 12 speed Super Record cassette* Same spacing as the 11 speed cassette, due to thinner sprockets and tighter spacing* Perfect compability with 9-11 speed Campagnolo freehub bodies* All steel construction with special surface treatment increases durability versus 11 speed cassettes* Single tooth jumps up to the 7th smallest cog* 6 biggest cogs split on 2 triplets, each machined from a single steel block* Faster and quieter shifting* Weight: 266g (11-29)