On one bike I have a large triangle battery inside a frame bag. Crash protection should be light and not too wide, so knees won't touch the frame bag while pedaling.
At the moment I am using a 6mm yoga mat on both sides. Knees don't rub on the frame bag while pedaling, but it is really close.
And the material is quite soft, I can push a screwdriver through it, so I am not sure if it can protect the battery in case it hits a sharp stone.
Would a thin carbon fibre plate on the outside and closed cell foam on the inside be a good idea? Would a carbon fibre sandwich plate (carbon fibre plate - closed cell foam - carbon fibre plate) be a better idea?
At the moment I am using a 6mm yoga mat on both sides. Knees don't rub on the frame bag while pedaling, but it is really close.
And the material is quite soft, I can push a screwdriver through it, so I am not sure if it can protect the battery in case it hits a sharp stone.
Would a thin carbon fibre plate on the outside and closed cell foam on the inside be a good idea? Would a carbon fibre sandwich plate (carbon fibre plate - closed cell foam - carbon fibre plate) be a better idea?