How many pistons: This is a 2 piston brake

or colour match other components

simple design

With a large 14-tooth X-Sync lower pulley it is matched perfectly for those whopping 11-50T and 10-50T cassettes

For Shimano Hollowtech II

Camelbak Podium Big Chill 700ml Bottle - Sage Perforated - 2020 Ignore Wholesale Tier 1 Brand Rule How many pistons: This isThere's nothing more refreshing than cold water on a ride. Help keep your water cool with the Podium Big Chill from CamelBak. The Podium Big Chill uses a double wall construction to help insulate your water. This will keep it cool for roughly twice as long as a standard bottle. Combined with other great features, such as Tru Taste Polypropylene and the Jet Valve, the Podium Big Chill will ensure that your water tastes fresh and you won't waste a drop.