Dynaplug Racer Pro Tubeless Repair Tool - Black Bikebox The internal Ultra-Shift mechanism controls

The internal Ultra-Shift mechanism controls the 12-speed rear derailleur

Bottom spacer: 5mm x1

5° after TDC (top dead center) - Ideal for road climbing

Optimised spring return

While these wheels are stronger than many mountain bike wheels in the market

Dynaplug Racer Pro Tubeless Repair Tool - Black Bikebox The internal Ultra-Shift mechanism controlsThe Dynaplug Racer Pro improves upon the legendary Racer's original design with Twin Tube technology. This allows you to store 4 pre loaded plugs ready to go in a single tool. Snap on caps protect plugs from dirt and damage. When your ready to make a repair, just pop off a cap to deploy either a standard size plug (with wheel friendly soft brass tip) or the aluminum Megaplug for mega big punctures. If you need more plugs just unthread the Twin Tube