Hope you are enjoying your trip and all is going well..
Let me tell something though all depends to your hobbies and way of biking you like...
Nomore historical places besides sumela..Tranzon is a business and university seaside city with ferry services to sochi...Prices much expensive...New wide seaside road is boring..Just some uphill plateaus on hills on different roads for each...
A few km. after south of maçka,zigana pass and milli park(national park) for camping..then bayburt,ispir,yusufeli,artvin route on the mountains is wild,natural,nice countryside and adventourous..Local food pure,natural and tasty in small towns..You can meet bear and follow them for some free honey in historical beehives on trees...
These are most natural,pure countryside of Turkey.
İshakpaşa,noah's ark,meteorite lake are at doğubeyazıt, close to Iran bordergate.
Not..Benzin is most expensive here and that's why relaxing and filling energy in the area close to georgia border gate is recommended..
Others are just ideas..
Trabzon to Dogbiscuit is 625 km..
Trabzon to Kemaliye (Road of stones) is 392 km.
[url=http://www.e-sehir.com/turkiye-haritasi/erzincan-kemaliye-trabzon-yol-tarifi-guzergahi.html]Erzincan Kemaliye - Trabzon Yol Tarifi G