Today I had the exitement of the failure of my left Gear on my Hatz CB1. All went well with minimum damage, but as I looked over the broken part it appeared to be undersized for a landing gear. Both landing gear are to be removed and upsized. This airplane was built in 1992 an workmanship is excellent, The aircraft has 800 hours. Just thought I would advise to check tube size at the upper attchment above the spring as thats what broke. Roger Moore Capt007