the spiky wheels are used to help with the traction especially going up on a steep slope. The concept is similar to real life trains that climb steep mountain grade.
They have been doing this for quite some time. I cant remember what year they started to do this on the rolling stocks.
They have been doing this for quite some time. I cant remember what year they started to do this on the rolling stocks.
My Trackmaster/Tomy/Plarail Photo Gallery Page (over 600+ photos and still under construction)
https://www.flickr.com/photos/183311600@N03/
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