Roads aren’t the smallest but they’re quiet enough unless it’s a summer holliday weekend. And you might have used Salburn as the end of the C2C depending which route you took?
Slatburn -> Whitby (via the coast road through Loftus) -> Scarbrough (as previous, take the costal roads) -> Thornton -> Sleights (i.e. almost back to Whitby, then turn left at the bottom of blue bank) -> A171 accross the moors heading for Guisbrough but turn right at the bottom of Birk Brow and head for Skelton Via Boosbeck.
Accomodation and beer, the George in Skelton.
Food, the pier fish and chips in Saltburn.
Getting there, train to Saltburn or there’s free parking at the clifftop in Saltburn or at the George in Skelton.
As a route it doesn’t have a diproprtionate ammount of climbing, but the section between Thornton and Whitby is leg destroying, a few mid sized climbs, with steep decents so it feels longer harder as there’s little in the way of flats or coasting downhill, you’re either climbing or braking!
Reasons to do it – the seaside is spectacular, it reminds me why I prefer quiet Saltburn to the crowds of Scarbrough/Whitby, the last section back over the moor to Guisbrough is spectacular as the sun goes down.
If you need a guide let me know, I’m down south but always happy to do that loop.