Strava

^^ There definitely are downsides to tunnels, but that 3km 6% descent must be an extreme situation! I've done quite some 1-2km tunnels, some with slight up or down slope, and yes it can be scary and the air isn't as great as you'd like it to be. But hey, I'd live in a tunnel for a week to be able to ride Norwegian roads!

^ I get that too sometimes (which makes it even more unexplainable), no idea why that happens.

We actually mapped this route as that tunnel wasnt one of the long ones we have around here, and riding Down it meant we'd be out pretty quickly.

But Yeah. No real ground to moan.