Choose the size you want and the wood to match your Schacht wheel. Whorls are interchangeable on Flatiron, Ladybug, Matchless, and Sidekick wheels*.
See ratios for each whorl on all of Schacht’s spinning wheels on Schacht's website!
What whorls do I have?
Each new wheel comes with a medium and a fast speed whorl.
What do whorls do?
Whorls allow the bobbin to turn at a particular speed in relation to the revolutions of the wheel’s drive band. This relationship is given as a spinning ratio. A slower (bigger) whorl will slow down the bobbin and produce a yarn with less twist; a faster (smaller) whorl will speed up the bobbin and produce a yarn with more twist. Each Schacht whorl has a bigger and a smaller ridge into which the drive band can sit, so each whorl gives two possible spinning ratios. See the “Specs” tab on Schacht's website for more about ratios.
What whorl do I use?
It depends on your treadling rate, the fiber you’re spinning, and the amount of twist you want. There are no hard and fast rules about whorls. Choose a whorl that helps your wheel do as much of the work for you as possible. In general: select bigger whorls or ridges for longer or coarser the fiber or less twist in the yarn; select smaller whorls or ridges for shorter or finer the fiber or more twist in the yarn.
*The extra slow whorl cannot be used on the Sidekick wheel.
**A high speed bobbin is required for spinning with high speed and super high speed whorls in double drive. (High speed bobbins are not required for Scotch tension mode.)