Route 4 North thru Saitama from Tokyo

[CoffinDodger]

Does anyone know if route 4 is bikeable in entirety up to Kasukabe?

I don't mind minor detours for underpasses/bridges etc

 

[D'Pioneer]

You can, but you will not enjoy a single second of it.

Where is your starting point, and is it Kasukabe you want to finish at?

 

[Forsbrook]

You can, but you will not enjoy a single second of it.

Where is your starting point, and is it Kasukabe you want to finish at?

Lol,totally agree.

It's like cycling on the sewer of Tokyo,

Much better to go up either the Edogawa or the less trodden Nakagawa from Tokyo.

 

[katakanadian]

I'll second the choice of river route. Generally the smaller the Route number the worse it is. National Routes (single digits) usually suck. Local roads (triple digits) are usually much better. If you are going to Kasukabe then I recommend visiting the G-Cans flood control silo.