All the above ... and then some.

One humorous story 'tho:

Chasing District 26 Expert low-plate-numbers in the early '70's meant earning points from most-if-not-all venues: oval track, TT, desert, MX, X-country, hillclimb, etc.

The DKW was a capable machine for most. It sported the Earls front suspension, (leading link, BMW uses a variation of this design). This is important later.

Late season Northern Utah flat-track, Heat 1. I never could get the timing down for the flag start, (usually mid-pack turn one). A few laps in, reeling in #3, going wide in a sweeper, a Bultaco with a stuck throttle, T-bones me.

You know how it is; everyone is in hurry to get back on and get back to business. Not me. The front rim was folded like a taco around the front shocks.

To CARRY the the the thing back to the pits was one thing, finding a wheel to make Heat 2 was another.

The Earls front axle has back-nutted studs in the hub, (NOT a long-shouldered bolt that passes through holes in the bottom of fork legs). The studs slip fore-aft into a C-boss on the bottom link. Machined-shouldered female nuts fill space between the C and the studs.

The guy next to my pit had spare rim-tyre set ups, Bultaco I think, and offered one.

Just in time for the flag: (since we could'nt use a regular axle): We cut a piece of all-thread for a through bolt, which of course, was NOT the same thread as the special nuts. We lashed the all-thread into the C-boss with 2 feet of wire. Imagine a pencil tied perpendicular in the crotch of a 22mm end wrench. Tied off the brake backing plate so it would'nt break anything, (couldn't use the stays or control linkage). Then one lap through the pits just to see if it would stay there.

Although I was proud of my McGiver-ed axle set-up; I middle-packed Heat 2 and didn't make the Main.

A Bultaco love-hate relationship has existed ever since.

I made a jumper for my computer once out of Aluminum foil. Worked great for several years.