16440 Metal Wheel Hex Hub Adapter with M20101 Pins, 12mm Upgrade for MJX Hyper Go H16BM H16GT 16207-16210 14301 14302

What this kit contains

This is a set of four metal wheel hex hub adapters for MJX Hyper Go trucks, listed under part number 16440, plus wheel hex pins of the M20101 size. The hubs are metal with a red finish and a slot across the top for the retaining pin. They replace the stock plastic hexes that come with the truck.

Wheel hex hubs

4 pcs, part number 16440

Wheel hex pins

M20101 size; the seller description gives the count as 8 pcs in one section and 12 pcs in another

ZDingTech makes these hubs as an aftermarket upgrade. They are replacement parts built to the 16440 hub and M20101 pin sizes, not original MJX components.

Compatible MJX models

The seller lists this kit for MJX Hyper Go 1/16 and 1/14 trucks:

• 1/16: H16BM, H16GT, H16DR, H16H, H16E, H16P, 16207, 16208, 16209 and 16210
• 1/14: H14BM, 14301, 14302, 14209 and 14210

The hex measures 12mm across the flats, the size these models use at the wheel.

Specifications

Part number (hex hub)

16440

Pin size reference

M20101, a 2 x 10 mm pin in MJX parts listings

Hex size

12 mm

Material

Metal with a red finish; exact alloy not stated by the seller

Brand

ZDingTech

Listed item weight

0.352 oz (about 10 g)

Why owners replace the stock hexes

The hexes these trucks ship with are plastic, and the seller's description notes that they break or wear out over time. When a hex strips or cracks, the motor still turns but the wheel stops receiving drive. The metal set is sold as a direct swap for those parts, and the seller calls the lighter hubs an easy upgrade for handling and durability.

Before you order

1. Measure the hex on your current wheels or hubs. This kit is the 12mm size, taken across two opposite flats.
2. Match your model against the fitment list above for the 1/16 and 1/14 variants.
3. If the exact pin count matters to you, go by what arrives: the seller description states 8 pins in one section and 12 in another.

A missing pin is enough to leave a wheel spinning free. The M20101 pin is a 2 x 10 mm size that RC parts sellers commonly stock in multi-packs, so spares are cheap to keep.