Magno-tread

Magno-treads aid a Transformer when walking on surfaces with low gravity. Using magno-treads makes for tough going and so they aren't used unless needed.

Fiction

2005 IDW continuity

When Jetfire and the Technobots were investigating a disturbance on post-cataclysm Cybertron, they discovered the gravity was roughly three-gees weaker than normal. In order to walk, they needed to use magno-treads. Stormbringer issue 1

Notes

• Magno-treads are similar in purpose to magno-clamps when located in the feet of a Transformer.
• While one year later Cybertron's radiation storms dissipated enough for Transformers to once again inhabit the planet, no mention is made of the gravity returning to normal. Presumably they would all still have difficulty walking.