LEGO 2x 2878c02 Train complete axle +wheel | Black

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I use the original LEGO train wheel axle, this axle is usually a little bit thicker than the hole of the ball bearing, so I created my own techniques and tools to get the ball bearings assembled to the metal axle. Guess what, you can even find discount vouchers, coupons and other money saving deals of lego train wheel on AliExpress. We have a large range of commonly spaced rods that fit within the Technic system, perfect for replacing your brick built rods. Before you check out, take a moment to check for coupons, and you'll save even more on item that you desired.

It looks like the "record train" in the video had about 4 9v train motors at the front, but it is still impressive given the forces they overcame.I could do a wiggle track but I don't really see the value as it's not something I use in actual layouts - I get the feeling it's something people do for house-size tracks because they inevitably have a big pile of curved track left over. They might have slightly higher rolling resistance than the old ones, but not as much to worry about IMO. Similar in design and size to the discontinued 57878 train wheel by LEGO, these wheels fit standard metal axles much more tightly - no gluing required! Although given the limited advantage of the metal axles in tests so far I think I'll hold off until the HDBricks sample pack arrives and I can test those. My cars are 7wide, the solution using technic bricks requires covering the wheels, but this will exceed 7wide.

I found some LEGO axles that can be assembled to MR52-2Z ball bearings without addtional tools, but after assembly the ball bearing still can move. I compared my ball bearing train axles with the original LEGO train axles using cars that weight 685g.Once the sun comes up and I have enough light to make the camera happy I'll shoot some more video and collect more results. This is because the two wheels turn the same speed (same rotation speed), but they need to run different distance on a curve (the outer longer, the inner shorter), so the outer wheel will be dragged or the inner slipped. These wheels also have a fully functional stud on their hub, perfect for decorated tiles or greeble work. Wiggle track would be interesting, but also doing an "S" pattern with 90° turn into 180° counter-turn into 90° counter turn all on R40 track.