Sponsors and Curators The Museum of Yo-Yo History is a labor of love, and we would not be able to stay up-to-date with exhibits without the support of our sponsors and curators. Big thanks go to One Drop Design and Duncan for supplying us with their latest models, YoYoExpert for their help and support, and to Cody Orr, TotalArtist and YoYoBrothers™ for allowing us to use their collections! If you're a manufacturer, or just a big collector and you want to help support the Museum drop me at line at chimera@yoyomuseum.com YoYoJam SpinFaktor 2 Exhibit #425 Type Production Shape Concave )-( Axle Bearing Color Black with Silver Rims Packaging Boxed Construction Composite Response None Diameter 2.25" Dia Gap Adjustable - Twist Weight 60.5 g Estimated Value $35 Condition Mint in Package Date 2002 Owner David Hall Compare This model was designed to replace and update the original SpinFaktor from YoYoJam. Often called simply the SF2, the redesign was a more streamlined design than the original, without the rubber weight rings on the outside rim. No response system, but as with other models, the recessed holes around the axle worked as a very weak starburst. Pictured here is a later SF2 from the summer of 2004, in all black. Most of these had red caps. Other Views Profile View Response System 2005-2023 Software © David W. Hall & Grahame BaptieWright Content by David W. Hall & Rick Brough