The Crombie Tool is Abbey Bike Tools’ original legacy tool, conceived by pro mechanic Jeff Crombie to make the routine job of checking lockrings and removing cassettes faster and built by his friend, former fellow bike mechanic Jason Quade.

Deceptively simple, the prototype was a Shimano lockring with a hole bored in it, allowing it to be slipped over a quick-release nut, with a handle welded onto it for extra leverage, taking the place of an adjustable wrench. The idea was to save precious seconds when performing a bolt check, while avoiding the risk of dropping the skewer or nut under the workbench.

This Single Sided Crombie Tool comes in a choice of Shimano or Campagnolo versions, so that there's no need to pack several tools, you have all you need to deal with most cassettes. Made in Bend, Oregon, the tool is precision machined from 17-4 stainless steel, so that the spline fits perfectly for maximum torque and ease of use, with no slip.

The tool is 9.5” long, with a handle that is half an inch in diameter and solid, lending a nice bit of weight to an impressively durable shop tool that can handle seized or over-torqued lockrings. For best results, use in conjunction with the 1/2” Whip It Chain Whip.

• Your solution for swapping cassettes without having to remove the quick release skewer
• Choose either the Shimano or Campagnolo version
• Precision machined spline for added torque
• Made from 17-4 stainless steel
• The original Abbey Bike Tool, made by and for pro mechanics
• Best used in conjunction with the 1/2” Whip It Chain Whip
• Made in Bend, Oregon