The Ultimate Jigging 40 mm Reel Knob is CNC-machined from solid 6061-T6 aluminum and Type II anodized with a modern two-tone finish. Stylish, lightweight, and built for saltwater use.

⭕ Direct-Fit Packages (Shimano Aero Technium)

Choose the package that matches your reel generation:

◉ D-Cup Package (Silver Cup) — fits Aero Technium XS-C 10000 (2014 or earlier).

◉ NS-Cup Package (Silver Cup) — fits Aero Technium XS-A (2014 or earlier).

◉ NS-Cup Package (Silver Cup) — also fits the newer Aero Technium XS-B 10000 surf reel.

⧳ Compatibility can vary by production run. If you’re unsure, measure your original knob’s internals (see below) or send us a photo.

⭕ Purchasing & Installation Tips

Before you buy, remove the original knob and measure the outer diameter (OD) of the two internal bearings (or plastic sleeves):

◉ If both internal parts are 7 mm OD, choose the D Cup package.

◉ If both internal parts are 9 mm OD, choose the NS Cup package.

➥ You typically do not need extra bearings. Reuse the bearings/sleeves from your original knob and follow the diagram to complete installation. Ensure all parts are clean, aligned, and spin smoothly.

⭕ Cup & Bearing Reference

(Reuse your original bearings/sleeves when installing the 40 mm knob.)

◉ D Cup: two bearings 4 × 7 × 2.5 mm (ID × OD × W)

◉ NS Cup: one bearing 5 × 9 × 3 mm and one bearing 4 × 9 × 4 mm

⭕ Specifications

◉ Brand: Ultimate Jigging

◉ Length: 53 mm

◉ Diameter: 40 mm

◉ Weight: 36 g (≈1.3 oz)

◉ Package Includes: one 40 mm knob, installation instructions, and one Silver Cup (D or NS)

◑ Bearings are not included—reuse the originals from your factory knob.

⭕ Available Colors

◉ Black/Gold

◉ Black/Silver

◉ Blue/Silver

◉ Gold/Silver

◉ Gunmetal/Gold

◉ Gunmetal/Silver

◉ Pale-Gold/Silver

◉ Red/Silver

◉ Silver/Gold

⭕ Order

◉ Price: $56.00 per piece (choose D Cup or NS Cup at checkout)