Looking to upgrade your yo-yo with new strings or maybe some gloves? We’ve got you covered. At Duncan we produce only the highest quality replacement and upgrade parts. These parts are specifically designed to work well with our products, so you can be sure your getting Duncan quality.


Products 1-12 of 19


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A bundle of 100 white polyester Duncan yo-yo strings

Price: $9.95
Availability: In Stock
Item #: 3276PP-WH -

    You'll never run out of strings with this package of 100 white strings!

    A bundle of 100 yellow polyester Duncan yo-yo Strings

    Price: $9.95
    Availability: In Stock
    Item #: 3276PP-YW -

      You'll never run out of strings with this package of 100 yellow strings!

      red silver yellow green and blue Duncan yo-yo performance rings

      Price: $6.99
      Availability: In Stock
      Item #: 5161PK -

        Aluminum Performance Rings are designed for models that fit FH Zero side caps such as FH Zero, FlipSide, Raptor, Echo, Hayabusa and more! Replace side caps with Performance Rings to reduce center weight and add more rim weight for longer spins and better performance. The rings come in sets of two (2).

        Candy Dice

        Price: $4.99
        Availability: In Stock
        Item #: 3165CW -

          Double Dice counterweight, yoyo, yo-yo, duncantoys, yoyoexpert, yoyorewind, spingear, amazon

          Price: $6.99
          Availability: In Stock
          Item #: 3168CW -

            The all-new double dice counterweight is our newest innovation. Our goals were the creation of a new way to play counterweight and the enablement of the invention of interesting new tricks. Through intensive prototyping, we optimized the weight distribution for each die to achieve maximum performance. Attach the double dice counterweight to your favorite Duncan Yo-Yo and start innovating!

            Back cover of Yo-yo Ninja DVD on the left, and front cover on right

            Price: $11.99
            Availability: In Stock
            Item #: 3172DV-IN -

              Join the Duncan® Crew™ as they teach the hottest and newest yo-yo tricks! This hour long instructional video features easy to follow tutorials for all competition styles of yo-yo play (1A, 2A, 3A, 4A, 5A) making it the most comprehensive yo-yo instructional video available!

              A chrome Konkave bearing for yo-yos

              Price: $14.00
              Availability: In Stock
              Item #: 3155KK -

                Want some extra spin time and performance? Dif-E-Yo KonKave bearings are a great way to upgrade any yo-yo. KonKave bearings keep the yo-yo's string centered at all times during play reducing friction against the yo-yo's body. Available in two sizes Size A and Size C (small & large) and made from stainless steel. These bearings a must for any pro player! US Patent #7175500

                A bottle of looping oil

                Price: $5.70
                Availability: In Stock
                Item #: 3182OI -

                  Performance oils enhance the play of looping and long spinning yo-yos! Modern yo-yos use ball-bearing axles which over time suffer from decreased spin times or low response due to the lack of lubrication. These oils have been formulated to increase the performance of ball-bearing yo-yos and are available in two varieties: Spin and Looping Oil.

                  Duncan Racer Caps in packaging

                  Price: $4.99
                  Availability: In Stock
                  Item #: 5163PK-IND -

                    Performance meets style: Interchangeable Racer Caps allow you to add weight to your yo-yo and increase your spin time. Pop in the spoked cap for a wheel-like effect or pop in the innovative "e;finger spin"e; cap for an all-new take on your favorite yo-yo.

                    Rapid Ball

                    Price: $4.99
                    Availability: In Stock
                    Item #: 3167CW -

                      The Rapid Ball is our most competition-oriented counterweights to date. Swift, nimble, and versatile, the Rapid Ball is naturally the competition counterweight of choice of the Duncan Team. Adding dimples to this spherical counterweight reduces air resistance, making it the most aerodynamic counterweight produced to date. This creates a faster, more fluid-moving counterweight, which is why it is perfect for competition use. Attach the Rapid Ball to your favorite Duncan Yo-Yo and get ready to...

                      Retro Butterfly Shirt, Pink Pink, t-shirt, retro, butterfly, tshirt, shirt, girl, women's, women

                      Price: $14.99
                      Availability: In Stock
                      Item #: 3140GS -

                        A package of white SG stickers for Duncan Yo-yos

                        Price: $3.99
                        Availability: In Stock
                        Item #: 3163PK -

                          SG Stickers provide an unresponsive response system for high performance tricks. A "Bind" is required to return the yo-yo to your hand.