Cycle stack


Hex drivers, Chain splitter, spoke and valve core tool

weight of stack


depth of stack


stack length



Ti6al4v titanium alloy


titanium nitride hardened




All the product images are based on pre-production prototypes, therefore final tools will have minor design changes including additional, subtle logo and lettering.

Jumping in the saddle? This contains all the essentials for either a short blast or full on expedition. Sling it in your pack, pannier or saddle bag. Weighing a total of 100g, you won’t even know it’s there until you need it.

Full stack includes:

Hex drivers // 2mm, 3mm, 4mm, 5mm and 6mm
All Plasma hardened Ti6Al4V

Chain splitter // use this with 3mm Hex key 
Hex is Plasma hardened Ti6Al4V

Spoke and valve core tool // Tapered key slow designed to fit any spoke. Schrader and Presta valve tool. Valve extender feature.
Plasma hardened Ti6Al4V

Note: Phillips driver not included as pictured

Extreme conditions require extreme materials

We use titanium alloy for a reason. It’s high Tensile strength to density ratio. In layman’s terms it’s strong and light. In fact it’s half the weight of standard steel. This makes it the perfect material choice for anything where weight is important. Titanium alloy was originally developed for the aerospace industry to allow planes and spacecraft to fly faster, higher and further. We have chosen to apply it to the world of outdoor adventure sports for the same basic reasons. When you are on your bike or in the mountains you feel every gram that you carry. Windeler tools are designed to be unnoticeable on your adventure until the moment you need them allowing you to go further, higher and faster.

A mysterious discovery that changed the world

In 1791 Cornishman William Gregor began a detailed chemical analysis on the Lizard Peninsula in Cornwall. He unearthed a metal ore previously unknown to science with strange properties.

Titanium – Named after the Titans of Greek mythology because of it’s other-worldly properties. It’s lightweight, tough, non toxic, non magnetic and non corrosive. Half the density of steel but with high tensile strength which makes it perfect for anything where weight and strength are important.  This made it a prized material for the aerospace industry in the early and mid 20th Century where it was developed and first alloyed.

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