A few questions:
When did the pain first start -was there any injury or just appeared one day?
How strong is the pain and how long does it last post ride - any swelling?
Have you ever had any ankle, hip, back or other musculoskeletal problems?
Inside of the knee towards the bottom corner is a common place for knee pain, might be patella tracking issue (patellofemoral syndrome) or it may be something to do with the various muscle attachments there - Pes anserinus tendonopathy/bursitis...
Go and see a physio rather than relying on 20 different opinions from people who aren't qualified and can't even see you.
That said its most likely a crank issue compounding a right leg dominance that's been spawned by too much left hand cornering with a little excessive use of the right brachioradialis.
Just my opinion.......
There are a few people on here more than qualified - you just never know. Although I do agree that internet based assessment and diagnosis is very hit and miss.
This. I would love to be able to give advice but I am only knowledgeable on left knee injuries.
Haha!