The end caps and pins are in fact metal. The track material is a high quality Nylon and plastic with embedded rubber pads. They are closed pin design and move like butter. The plastic provides a lighter weight which should provide better throttle response. Their guide horns are tall promoting better retention. This is one of the main reasons I chose them since there are all those stories of MBT's shedding tracks at the blink of an eye.
The double pin design allows for even more flexibility as well as adding scale fidelity just like the real tracks.
Overall when the price is considered many people choose heavier weight metal tracks of slightly less $money$ to significantly more $money$ but the design and quality of these seem the better option. Especially since I'm not looking to actually increase weight to the Taigen Leo Chassis. It's heavy enough. The Caveat to these tracks is actually sourcing them. They aren't easily found and when they are the price is usually prohibitive. This is where it pays literally to shop around Alot.
Here is another comparison to the stock Taigen full metal, Closed single link pin tracks.
The twin and single track sections are stock Taigen. But their molded pads are metal.
Only Time will tell as my build progresses and the Leo will get put through her paces but I'm certainly satisfied with Tamiya Quality.
