and 6mm sizes

this will become your favourite tool

Tighten until it stays in place

A hydraulic brake's timing port is the connection between the reservoir and the master cylinder bore

Maxxis Flyweight Tube - 48mm Presta Removable Valve Core - 1.9-2.125 Inch - 27.5 Inch PDP|Colour and 6mm sizesThe Flyweight tubes are for the lightest offerings from Maxxis. For XC riders and anyone else looking for the lighest setup possible. Who's this item for: These are for the weight weenies looking for every advantage on their XC race machine and are willing to sacrifice protection over weight savings. Removable valve core: Yes, the valve cores are removable. Tube wall thickness: 0. 45mm Weight: 26 x 1. 9 2. 125: 96g 27. 5 x 1. 9 2. 125: 110g 29 x 1. 9