While they might be ok for drivetrain duties

decreasing the chance of brain damage

2 Socket And Bit Set covers all the common bits you need to work on your bike

Includes X-Lock Standard Mount

Maxxis DH Downhill Tube - 48mm Presta Removable Valve Core - 2.5-2.7 Inch - 26 Inch PDP|Option While they might be okThe burliest tubes for DH riding. Heavier tubes will provide more flat protection in rough terrain, don't skip when you're riding DH! Who's this item for: These tubes are heavy! Perfect for DH and gravity use, however, they will be noticeable if used for trail riding. Removable valve core: Yes, the valve cores are removable. Tube wall thickness: 1. 5mm Weight: 24 x 2. 5 2. 7: 423g 26 x 2. 5 2. 7: 461g 27. 5 x 2. 5 3. 0: 505 g 29 x 2. 2 2. 5: 434g