Electric Bicycle Wheel Hub Components. Features: 3pcs Planetary Gears 36T. Internal Planetary Gears for Bafang/8-Fun and Other Similar Motors. Gear Diameter 38 Mm - Thickness 12 Mm, Bearing Type 608. Specifications: Material: Nylon Color: White Material Type: Nylon Manufacturer Part Number: Others Size: (Approx) 38*12mm Bearing Model: 608 Package Included:3 PCs X Gear WheelNote: Due to the Light and Screen Difference, the Item's Color May Be Slightly Different from the Pictures. Please Allow 0.5-2 Cm Differences Due to Manual Measurement. . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.