But there are other ways that might be safer. Since the Fly classic chassis has an offset to it due to the motor pod area, it will not lay flat 100% on your surface.
So I use music wire to straighten and in turn strengthen the chassis.
The only way this works is if the wire itself is true. To check that, simply roll a section on a known flat and true surface. As you roll, check the ends and overall action. We do this for axles and the same applies here. If it is true then it's good for install.
Easy enough to measure and cut.
Ever clamp something and glue it, only to realize you glued the clamp as well? No? Then you are far better than I. But the magnet works well because the force of it straightens the slight warp you may have. You can use more than one if you need more strength or to space them out on each end. The photo should guide you to the right idea.
Now just glue in place. Inexpensive super glues work very well for this. You can use JB Weld of course, but just in case you ran out this works. Many chassis I have are older than I care to admit and still in place today using just the super glue.
Hope this helps some of you.
