Shimano FH-MT400B Freewheel Body Unit Model=JoeBlow Booster Floor Pump Exclusively developed with Aaron Gwin

Exclusively developed with Aaron Gwin the Pinner was done for World Cup tracks like Leogang and Lenzerheide and designed to hold its own against the toughest competitors

Steel body shop grade rugged tool protects tool when dropped

Lightest XC fork available

Disc Diameter 180mm Disc Material Stainless Steel Disc Rotor Weight 104g Hardware Yes Hub Compatibility ISO 6B

RMV Rims use a sleeved joint Brake Compatibility Rim Brake Rim Width (Internal) 13 Brake Track None Manufacturer Spec ERD (mm) 439 Valve Standard Schrader Color Silver Weight 256 Wheel Size 20" Defined Color Silver ISO Diameter 451/ 20 x 1-1/8"

Shimano FH-MT400B Freewheel Body Unit Model=JoeBlow Booster Floor Pump Exclusively developed with Aaron GwinFreehub Bodies for service and replacement on Shimano hubs.