Park Tool BBT-18 Bottom Bracket Tool 5048-407
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Park Tool BBT-18 Bottom Bracket Tool

Free shipping on orders over $50
Free store pickup available at some stores: inside or at the storefront

Rocksolid Guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, undergarments and swimwear excluded).

Really. If it's not up to snuff after you use it (a couple times) you can still bring it back.

It lasts longer than 30 days, but not forever. We'll be fair about it. We're all members here.

Price match guarantee

Found a better deal in Canada? Up to 30 days after purchase – we’ll match it.

If you see a lower price for this exact item advertised online, in print or in a store, give us a call at 1 (888) 847-0770.

If it’s identical, brand-new, in stock, and sold and shipped by a Canadian-based retailer, we’ll match that price.


Show Description

Designed to survive the abuse of shop use, this heavy-duty cast bottom bracket tool is built for the long run.

  • Designed for Shimano® Octalink® right cup with external notches, ISIS Drive™.
  • 8 notches with an outside diameter of nominally 43.4mm.
  • Inside-to-inside width is approximately 38mm (each notch is approximately 3.9mm).
  • Hole in the centre of the casting is 22.5mm, will not fit over the 30mm spindles.

Tech specs

Show Tech specs
Ideal for Bike maintenance
Made in USA