Norton Summit and Corkscrew Road

The Norton Summit Road is a ride I've been wanting to do for a while now. Along with the Mt Lofty climb, it would probably be Adelaide's most popular climb. Since I was up that way, I thought I might have a bash at the somewhat legendary Corkscrew Road. It ended up being a short but pretty demanding ride. It was only 45km's (I started from the top of Greenhill Road) but it was a total of 920 metres of ascending, making it probably the most intense ride I've ever done.

The view back down the valley from along the top of Norton Summit Road

Looking back to the city from just before Norton Summit.

I can see why Norton Summit is such a popular ride. It has plenty varying gradients, some magnificent scenery and not a huge amount of traffic (not on a Saturday morning anyway). It felt like it was a similar intensity as the climb from the Tollgate to Mt Lofty but quite a bit shorter. A little way past the township of Norton Summit I came to a fork in the road - with the choice of a downhill road (which was the short way to my destination) or the uphill road (Woods Hill Road) which took the long way around through to Ashton. I was clearly in a self-flagellating frame of mind because I chose the latter. It was pretty damn steep but I made it through to Ashton eventually, then trundled off towards Montacute Road and my destiny.....

The Corkscrew Road turn-off looked unassuming enough, but it only took a minute or two and quick look over the Armco railing for the full horror of the situation to be revealed. The statistics are alarming enough (a 2.4km climb at a 9.2% average gradient) but when you see a view like this with the road snaking it's way through the valley directly below, it was clear that this was going to be a climb like no other that I'd ever attempted.

Now that's just plain silly....

As I cautiously rolled down the hill, the thought of climbing back up this thing made me laugh out loud and I resigned myself to the fact that I'd probably have to walk some sections of it. I stopped a few times on the way down and took some photos then finally reached the valley floor. It's pretty down there with the babbling creek along the side of the road. I almost made it through to Gorge Road before I decided I'd better turn around and face the music.

By now, it was getting pretty warm (around 33 degrees) and, as I passed over the bridge and the climb began, I was not feeling overly confident. My fears were confirmed when the gradient started to bite and I ran out of gas about 50 metres before the first switchback and had to stop and rest for a few minutes. Surprisingly through, the rest of it went okay. I thought those steep ramps on each of the switchbacks would kill me off but managed to get my bum out of the saddle and push through them. I did end up stopping again about 150m passed the last switchback. The worst was over by this stage and I probably could have kept going but I kept looking at my heart rate which had been over 180bpm for quite a while and I decided it would probably be wise to stop and let it settle for a few minutes. Sometimes I think I shouldn't bother wearing the heart rate monitor because I get a bit paranoid about it.

Just before the first switchback - that's the road straight ahead at the top of the hill

Yikes!

Anyway, as I was stopped there, I could hear another rider coming up from behind. He was clearly at maximum effort and his moans and groans were echoing through the valley. As he powered past me I thought to myself "and I'm worried about having a heart attack!". I concluded he was probably doing the Strava Corkscrew TDU Challenge thing which is a month-long competition on Strava to see who can lodge the fastest time up the Corkscrew Road segment. As I got to the top of the hill he was slumped over his bike looking utterly shattered. I asked if he was okay and he nodded so I assumed that was a 'yes'. Anyway, he went seriously fast up that hill and I suspect he's one of the serious cyclists at the top of the leader board who do the climb in the 8 - 9 minute bracket. Anyway, when I got to the top I did briefly flirted with the idea of doing it again, but sanity prevailed and I decided I'd leave it for another day.

For most of the the climbs I've done I'm usually between 5 and 15% from the bottom on the Strava leader board. It's more like 1 or 2% from the bottom after my first attempt at the Corkscrew, so I'm pretty keen to have a few more goes at it to see if I can do a little better. Still, I at least managed to get up the thing on two wheels and not two legs which was more than I was expecting.

Anyway, after Corkscrew it was a pleasant coast down Montacute Road, particularly towards the bottom where the road becomes smoother. A bit of a climb up Stradbroke Road and a meandre back across to the top of Greenhill Road and I was done for the day.