Nice undulating road with some blind crests and bends (be careful)
Can a road have too many corners? Doing this road might have you asking this question to yourself. They just keep coming with virtually no straights to allow you to relax. The GI-550 in particular had so many corners that I had to pull over and get off the bike so I could catch my breath. A relentless stretch of road mostly surfaced very well, the only surface issues being leaves which had dropped by the right hand side of the road. Not much of a view to speak of; you're surrounded by forest although you are reminded once or twice that this is a mountain road. I've ridden some spectacular roads in my time, but for sheer cornering thrills this quite possibly my new favourite. Highly recommended!!
A mixture of slow villages and some really nice country riding. Surface can be a little bumpy and visibility not so great in places but there are a few really nice corners on this route. The decent sections are around Little Sampford.
Another decent bit of road that can easily be added to the A507. The road surface is mostly decent but there are a few areas where it is less than perfect (gravel, bumps in the road). Most of the corners can be read if you keep your head up but a few are quite tight with limited visibility. Last time I was on it they were doing work on the road as well as cutting back the trees by the side of the road resulting in quite a few (large) branches laying in the middle of the road, be careful!
A road of variable quality both in terms of enjoyment and surface. Starts off with a wide road through a wooded section. Corners are mostly fast with a couple of S bends before Essendon. The road narrows up and visibility decrease from here to Hertford. There is a quarry site a mile or 2 after Essendon so be aware of gravel/debris on the road as well as large lorries hogging the road at points!