Park Tool BBT-RS BB Bottom Bracket Tool - Retaining System CheckoutTitle=Birzman Shimano BB Socket Weight 50 Shaft Type Threaded

Weight 50 Shaft Type Threaded ISO Width (mm) 18 ISO Width (mm) 19 ISO Width (mm) 20 ISO Width (mm) 21 ISO Width (mm) 22 ISO Width (mm) 23 ISO Width (mm) 24 ISO Width (mm) 25 ISO Diameter 571 / 650c Valve Core Removable Labeled Size 650c x 18 - 25 Valve Presta Long 56-74mm

6mm color black

} Unique single sided fork design leaves the plug in place without pulling it back out of the tire

Traditional square JIS 2-degree taper crank arm interface

flat #1 screwdrivers

Park Tool BBT-RS BB Bottom Bracket Tool - Retaining System CheckoutTitle=Birzman Shimano BB Socket Weight 50 Shaft Type ThreadedThe BBT RS uses a spring based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage and possible cross threading Features an M8 threaded rod and a double sided adapter nut with M12 and M15 threads, allowing it to thread directly into any compatible cartridge bottom bracket The M15 adapter can also be used to install any of Park Tools nine aluminum bottom bracket