Used Triumph Explorer XC

I bought an Explorer from Gedges back in June. It was a higher than average I leave at 36K miles, though had a full service history set of stamps, mostly from Gedges themselves so felt this was a solid buy.
I've loved the bike and found it a great ride, though problems arose very soon after buying it.
At first their offer to fit my Garmin Sat-Nav was tainted when they incorrectly fitted it, then I had need to return again for a juddering from the front brakes. They took it in, rode it around and concluded there was no issue at all and I just need to get used to adventure tourer motorcycles.
Forward wind a couple of months and I've found the issue to be a combination of a pair of warped brake discs and a broken headstock bearings, all of which were apparently 'serviceable' items so not covered under the warranty offered by the garage.
This is doubly disappointing given that it was Gedges who have serviced the motorcycle consistently for the last few years.
I shall not be giving them my custom again.