Went out for a local spin on the trike, checking out some side streets and lanes near Denham Aerodrome. Coming off a rough bridleway, a local on a MTB asked about the trike. While chatting, I glanced down and noticed the LH axle tubing was cracked. Some zipties fitted to sort of hold the crack together and I gingerly pedalled the shortest way back. A few kilometres from the finish and there were some funny noises emanating from the axle. The crack had grown to about 80% round. After that, I took my trike for a walk, resulting in some puzzled looks from folk along the way.