Park Tool BBT-18 Bottom Bracket Tool size-18mm 75" rims featuring durable spokes

75" rims featuring durable spokes and brass nipples

This bar is 11 butted and heat treated 4130 chromoly

Mesh Comfort Liner – helps keep you cool and comfortable

Barcode 145859 Special Shipping Group No decorateTable('product-attribute-specs-table')

Park Tool BBT-18 Bottom Bracket Tool size-18mm 75" rims featuring durable spokesThe Park Tool BBT 18 Bottom Bracket Tool has 8 notches with an outside diameter of nominally 43. 4mm. The inside to inside width is approximately 38mm. Each notch is approximately 3. 9mm wide. The hole in the center of the casting is 22. 5mm and will not fit over the 30mm spindles. It can be used with a 36mm socket or open ended wrench. The BBT 18 is a heavy duty, investment cast tool for installing and removing the following eight notch bottom