They are designed for use with Magura brakes and are available in a resin-organic compound:

Who's this item for: Suitable for all kinds of riding where you spend a lot of time pedalling in a seated position

The innovative

Spindle size (diameter): 22/24mm stepped

Half-waffle design for increased comfort and control

Topeak CO2 Insulating Sleeve Pair - 25g Replace Images They are designed for useTopeak CO2 Insulating Sleeves are a great protection measure against the sudden temperature drop the CO2 canister undergoes during inflation. Who's this item for: Anyone who carries CO2 canisters for inflation. What C02 canisters does it work on: 16 and 25 gram Pros: The silicone rubber does a great job of protecting you against the cold CO2 cartridges during inflation. The sleeves can be stored on the canisters ready to go! Cons: They can be a bit