If you'd prefer to run a standard Shimano HG cassette

73mm and PF92 BB shells

The fastest and most universal TowWhee ever

you can bet that these gravity pants have been thoroughly put through their paces

it will be available everywhere

E-Thirteen Quickfill Tubeless Valves - Black - 16-24mm Depth netsuite-webdata-created If you'd prefer to runE*thirteen are calling these a game changer, and we might just agree. A tubeless tyre valve that allows tool free removal of the Presta valve assembly and provides a direct interface to your 'Tire Plasma' bottle (as well as other bottles with a funnel cap) and a larger throat for mess free installation of tyre sealant through your valve core. Available in a short (16mm 24mm) length to suit most rims or a longer (23mm 31mm) length to suit deeper rim