Audax Speed Analysis

I though I’d do some analysis of how I gain and lose time through an Audax event against the minimum speed (15kph) target.

After tinkering with spreadsheets for a while, I came up with the unit: minutes in hand per km travelled. So a value of 1 after 100km would mean I had 100 minutes in hand, so 1hr 40.

This is useful measure than simply time in hand, because, if I keep a consistent average speed, the line on a graph will be flat the further I go, whereas time in hand would keep increasing.

So here are the plots for all the audaxes I’ve done 300k or over:

Audax speed analysis

I’m not sure what it means, other than how essential it is to build time in hand early on, when you’re quicker as you’re not going to be able to do much later. This is clearly something we suffered from on our failed Wales adventure. We actually lost time more slowly after 200k than the Skegness ride, but had somehow failed to build much of a buffer early on through the fairly benign terrain of Oxfordshire with a tailwind.

Audax 2016 – 600k – Skegness Adventure

After many chats with Dave, we decided that we needed another crack at a 600k ride. Based on our experiences in Wales, we decided we’d try something different, so went for the flattest route available. Ely and Lincoln were the original objectives, with the Humber estuary also being a candidate, but in the end, we decided we liked the idea of the fens, so picked Skegness.

Fortunately, we made it, but not with as much time to spare as I’d hoped:



Despite the flatness, the ride turned out to be somewhat of an ordeal. This was mainly due to the almost continuous heavy rain.

In fact, it was raining heavily when I was leaving at 9am on Sunday.

The hero departs

I had already decided to take full thermal gear, despite the promised 18 degree temperatures and the miserable start sealed it.

The ride to Dave’s was fine, despite the rain. However, heading through Windsor park, my right leg began to hurt quite badly. Fortunately, this was cured by rapid use of Ibuprofen. This would twinge every now and again for the first few hours, but then didn’t bother me thereafter. Note sure what it was all about.

I then had two other potential disasters related to my Lumicycle headlight. First, pulling over after the road through Slough, I discovered that the mount had snapped and the light was bouncing against my spokes. I had hoped a new arrangement with the mount had solved this problem, which used to happen every 6 moths or so, but clearly, it had just been over 6 months since my last replacement! Fortunately, I had decided the night before t pack a spare mount. Somewhere on the horribly bumpy and busy road through Amersham, I decided it’d be a good idea to take the light off until I actually needed it, to reduce the chance of losing the final mount. When I stopped to do this, I discovered that the light wasn’t working and I couldn’t persuade it to re-start. Because of the bullet-proofness of the Lumicycle, I hadn’t bothered to pack a replacement. Never leaving home without the Hope 1 again! Frantic calls ahead to my brother in law secured a spare light. In the end however, a few hours in the trunk bag for light and battery seemed to cure all ills, and it worked faultlessly for the rest of the trip. I did however, take the offered spare, having lost faith! It could be that attaching a new mount in the rain got some contact wet, that then dried out in the bag.

Somewhere after Dunstable, the sun came out and we were treated to quiet, smooth roads through the fens in the sunshine. This was definitely the high point of the ride. Then arriving at my brother and sister in law’s at Prickwillow, we were treated to a slap-up meal. Excellent.

Dinner at Ricks

This got us in high enough spirits to play down the cracking of thunder as we left. I’d even swapped thermals for shorts! This of course, is when the truly torrential rain started. I tried taking photos, but none really did it justice. The rain continued to hammer down as we passed through Wisbech and towards Long Sutton where we dived into an almost impossibly welcome McDonalds.

Blessed McDonalds

In fact, McDonalds turned out to be a great find on this trip. They are actually open 24 hours a day and you can see your bikes from your seat. Quick service too!

The A17 and A16 to Boston went pretty quickly in a pace-line. While there were quite a few lorries, they were all very courteous and the road was nice and wide for overtaking. We got to Boston thinking that we’d pretty much make to to Skegness, but over 20 miles on the bumpy A52 ground us down somewhat.

By this point, the rain had stopped, being replaced by heavy, wet fog.

Bike in fog

This meant that by the time we got to our “hotel” in Skegness, our clothes were still soaking.

Skegness hotel

It’s a testament to the space blanket, that I actually managed to get 30-45 minutes sleep despite soggy clothes and temperatures close to 10 degrees. A 3am arrival was slightly later than I’d hoped, but surely we’d make up time without the rain.

I woke up to a dawn over the sea at 4am and we pushed on while we had a hope of quiet roads. The small roads through the fens were nice and quiet, but rather rutted and bumpy. They continued to be poorly surfaced as we approached Sleaford, but the rush-hour traffic built continuously and it was with relief that we stopped for a slap-up breakfast.


The roads after Sleaford seemed to be much quieter, so we relaxed a little. Then, at the bottom of a small descent Dave kept pedaling over a very small ford. I saw Dave slide sideways a couple of meters ahead and decided to pedal faster rather than attempt to stop as t was already too late. Both wheels went out from under me for a fraction of a second. 20m down the road after controlling massive wobbles, we were completely focused again.

After this, the rain started to slowly increase again (cue another McDonalds shelter). It would reach a point where I was sick of it, then it’d get heavier. This went on for hours, culminating in cycling down a very busy, narrow and choppy A47 with a river pouring on us.

In Higham Ferrers, a coffee shop ( I believe) owner rushed out and told us we could bring our bikes inside, round the back when they spotted us locking them up outside. The rain had turned torrential again at this point, so it was huge relief to do the faffing with bags and GPS under cover. Also, it allowed me to relax with the bikes secure. Waffle with ice cream, bagle and flapjack for the road were also all most appreciated.


It was around this time that I noticed that Dave wasn’t eating much. As I was packing away waffles and burgers, he was having soup! He was feeling nauseous when eating or even drinking water. No doubt something evil picked up on his bottle spout from the endless spray on “country” roads. This lack of nutrition was starting to give him trouble and he struggled to stay on my wheel to Milton Keynes if I pushed at all.

The ride through Milton Keynes was extremely pleasant on a network of small roads an good quality cycle paths. In the middle of this cycling joy was a beautiful lake where we took the opportunity for a quick rest.

Sleeping in MK

Tired in MK

Despite his bench kip, Dave was still suffering on the ride from Milton Keynes to Aylesbury, only slightly ameliorated by ice lollies. Aylesbury turned out to be a truly horrible town for cycling with crummy surfaces, fast but narrow roads and a massive amount of traffic. Not to mention scary roundabouts and dual carriageways. It was exiting Aylesbury that Dave and I parted ways. We were planning to do so further on, after the M4 crossing, but he was able to take a more direct and less hilly route back home, which made sense given his troubles.

It turned out that Dave actually got home 30 minutes before me, so either his ice lollies jazzed him up, he had been playing me since Higham Ferrers and saving his energy sitting on my wheel, or most likely, I was actually also in a terrible state.

As I got away from Aylesbury, the traffic calmed down and I ground out the final miles. I didn’t remember the exact route I had planned for the run in, expecting to be approaching Wokingham from the West, but actually coming at it from the East. It wasn’t helped by the fact that had confused the layout of Wokingham with Sandhurst or that there way yet another bout of torrential rain, hampering visibility and generally being miserable.

However, at last, I was back onto roads I knew like the back of my hand through Farnborough and back into Aldershot. At last, I rolled up to my front door, where my wife had stayed up to get a picture of me creeping in at midnight of Monday / Tuesday.

The hero returns

All in all, a great adventure, but really could have done without the rain and it being about 10 hours shorter.

And last, what Audaxing is all about, riding down a rainy trunk road in the middle of the night:

Audax 2016 – 100k – Norfolk Mardle

A bit like last time, I’ve been lazy and I actually did this ride in February.

The route took in a nice circuit of countryside South of Norwich:

This was the route of an Audax I attempted very early in my Audaxing “career”. That time (2011 I think…) I made a disastrous misjudgement with the weather and decided not to wear overshoes (which I had brought to Norwich). It proceeded to sleet & snow heavily and my feet froze. I ended up giving up and turning around in Loddon and going home (so ended up doing about 60km anyway) when the people at the control failed to stamp my Brevet card quickly enough. I remember it took a day before I regained all feeling in my toes. My brother in law actually completed the 200k version (The Old Squirt) on the same day, but I believe he sorted out his footwear better.

This time was much more successful and I made a good average speed despite it being pretty windy, with a headwind for the two quarters of the journey.

I could have gone non-stop, but I decided to take several stops for pictures of picturesque churches, and the Norwich City training ground.

Norwich City Church4 Church3 Church2 Bike Church1

The lanes were covered with a particularly fine mix of mud and poo. Check out the despicable state of the forks in the Norwich City picture.

Cycling mileage 2015 vs 2014 vs 2013

2013 2014 2015
Miles Count Miles Count Miles Count
Sirrus 2529.39 124 153.81 9  152.69 4
Sirrus Light  1597.21  75
Linskey 3357.64 160 3243.03 158
Khatmandu  84.94  8 46.66 3 40.08 4
Khatmandu – ice 190.15 11 7.83 1 101.61 6
Raptobike 49.17 5 152.83 7 2.86 1
TOTAL 4450.86 223 3718.77 180 3540.27  173


The third year of commuting to Camberley. Strange how 2014 & 2015 seem to blend together. Maybe it’s because we had the same camping holiday both years…

Very similar between the two years cycling wise. Felt like I did more cycling in 2015, mainly because of the failed 600k, but I think there were fewer mid distance Audaxes & weekend rides.

Also average commuting speed (combined moving average of going in and coming home) for all 3 years.

Commuting speed graph 2015, 2014vs2013

Definitely had a good patch through the end of the summer holidays and I think that extra effort (and lack of back pain) lasted through to the end of the year.


Audax 2016 – 100k – Surrey Hills

You may notice that I actually did this ride on the 31st December 2015 (in preparation for New Year jolliness in the evening), but the Audax season is from 1st November. I was going to do a ride every month of the Audax season, but I can pretend it’s December – December.

I decided to venture roads I haven’t travelled for some time and planned a route to the dark heart of Surrey: This took in the hardest hills I know and I thought my legs could do with the challenge.

As I expected for Surrey, the roads were in terrible shape (apart from Box Hill and the descent from Leith Hill, which used to be a trench) and there were loads of people out. Fortunately, many of these people were road cyclists, so I got some competition. Turns out I was on the slow side for a MAMIL, but I held my end up reasonably well given the continuous nature of my ride. First a group of 3 roadies managed to chase me down slowly over about 5km of rolling country. Then, after Winterfold (Barhatch lane out of Cranleigh) I spotted another roadie up ahead. I slowly closed him down until I caught him on the White Down lane ascent. He then managed to break me on the 20% ramp towards the top (I think maybe I should have used a slightly higher gear and stood on the pedals), but stopped at the top, where I continued. Finally, on Box Hill, about 1/3rd of the way up, I spied a light behind. I managed to keep out of reach to the top, though I think they managed to close down 100m. I have a feeling that the Box Hill pursuer was the same chap as I followed up White Down.

Box Hill was in rather nice sunshine (prior to heavy rain showers on my way down Leith Hill) and has developed a nice lot of random road graffiti since I last saw it. So I stopped to take some pictures on the descent.

Box hill 1 Box hill 2

Other random things that happened were the near squirrel suicide under my front wheel and being hit on the side of the helmet by something on the way out of Dorset. There was no one visible, but I may have spied the nets of a tennis court a way off the road, which was about the right weight.

I’m not sure of my actual total time, but I think it was about 4hr 30, which is abit slow for a 100k. I put that mostly down to the wind and narrow wet descents that I took very carefully.

I’ve also noticed that I tend to get hiccoughs after 100s. This is really annoying as I would fully expect exhaustion and sore legs (both of which I had) but not bloody hiccoughs.

Audax 2015 – 100k – Glorious Goodwood

I hadn’t been out for a social ride since the failed 600 with Dave, so I thought it would be good to organise something not too strenuous, where we could enjoy the cycling.

On a holiday to Bognor Regis earlier this summer (incidentally, the weekend where my old phone died), we had driven up the hill next to Goodwood racecourse. It seemed like a good cycling challenge, so I duly created a 100k around it:

All the planning almost came to grief when I got a cold on the Friday before the ride. I was feeling pretty crummy Saturday night, but decided I would start the ride and see how it went, against doctors (wife’s) advice. In the end, after a gentle start, I felt ok, so went through the whole ride. I felt abit weird Sunday afternoon.

Pretty much the whole ride, we had really strange temperature inversions. We’d be freezing in fog and mist, then go up a hill and feel warm gusts of air. My mirror and glasses would steam up, then we’d pop into blazing sunshine.

One of these sunny spots was the top of the Goodwood climb:

Goodwood hill

And closeup of our bikes:


You’ll notice my lovely lime green saddle in place of the Brooks. This is part of my lightweight scheme, which saves 500g over the Thudbuster & Brooks. Must say, the lack of comfort wouldn’t be worth it over more than 100k. Dave is still soldiering on with his broken front derailieur and tellingly, had it on the small chainring.

We started at 7am, which meant the outward leg on A roads was nice and quiet. Coming home, the roads were just starting to get busy at the point we popped off onto lanes through Selham and Lickfold. The final stretch through Milford, was busy, but bearable, because we were close to the finish.

In the end I think we went pretty quick, considering I wasn’t 100% and the amount of climbing on the route, just shy of 1300m.

Audax 2015 – 150k – Bike Delivery

Over the past year, I’ve been slowly re-building the Sirrus after it was rather cannibalized to create the Lynskey. I didn’t really have idea what purpose the bike would have. That was, until my dad started looking for a bike. After a few suggestions of folding bikes that he wasn’t up for, I had the idea that the Sirrus could be find a good home and avoid him having to spend money on a piece of junk. The added advantage would be that I’d have a bike at my parents house for raids into Wales.

I reckoned that a 150k ride to Bristol would be a good test of the machine and avoid having to put the rack on the car.

Sirrus Mk3

Because my dad isn’t really a keen cyclist, I built the front up as high as possible and used a Shimano XT rear mech for a really low bottom gear. I also thought he might appreciate the qualities of the Rivet saddle. The TT bars are not part of the build for my dad. I threw them on at the last minute because I saw the forecast was for a decent headwind the whole way.

The route I based around back roads, which I thought would be a change from the A-roading we did for the (failed) 600. The interest point was that it took in a hill (after Aldbourne) that I always take to be the half way point between Aldershot and Bristol. It stands out because there’s a copse of trees perched on the top and often at night I saw specks of headlights high up in the darkness and wondered what it’d be like up there. Well, now I know.

Copse on hill



I had done 3 days of commuting on the Sirrus before this ride, to make sure that it would hold together (and because I was waiting for a new sprocket of the Lynskey). However, the setup clearly wasn’t as finely honed as I’d normally have and I suffered cramp in my thigh after about 50k. This got to it’s worst by Hungerford, where I started raising the saddle. I ended up with it 1.5 inches higher than when I’d started and the last 20 miles went pretty easily.

Hungerford was also the point I had some very tasty sweet and sour balls next to the river.

IMGP2178 IMGP2179 IMGP2177

Despite the thigh cramp, I had a successful couple of races with roadies.

The first was a long slog from the A34 to Hungerford where my thigh was at it’s worst. I turned into a road just ahead of a chap on a pretty good looking setup. I expected him to blow past me and then I’d have a chance to take his wheel, but after putting in a small effort so it wasn’t too easy, I looked in my mirror an he was about 20-30m behind. It pretty much stayed like that for the next 15km! I would pull away at any point where I could employ the TT bars and on the steeper hills, but then would have slight hold-ups (bus coming the other way, traffic lights etc) and he’d be back at 30m. It seemed like such a small distance and our speeds were so similar, that he could have put in a small push and gotten onto my wheel, but he never did.

The second race was alot less dramatic, but made me feel good. In Yate (150k into the ride that was actually 160k) a roadie on a carbon bike was sitting ahead of me at lights. I thought I’d get a small tow for a km or so before he dropped me, but in the end he was really slow and I breezed past him and he disappeared in my mirror on the first hill. Result!

After the saddle raises, the bike worked well for me. I was really glad I had put the TT bars on because it would have been really hard work into the wind and my hands would have been ruined because I would never have been able to take the weight off them. I also ended up in the middle chainring most of the time because the large is (and always has been) too large and the cassette range is big enough now to cater for most hills.

I’m coming to the conclusion that 150 and 300k are my favourite distances. Both a good days out. 300k is a huge distance, but is pretty much waking up to bedtime. 150k is really relaxed time wise, I can drop off the kids at school, prepare and get to my destination in time for an early supper. You don’t go that far in a 100k and 200k is unhelpfully in-between a big day and an easy day. Maybe this will change if I get faster and/or maybe there will be some longer distance that hits the sweet spot as well.

150k still felt like a long way and I still struggle to conceive of it being a quarter of a ride (or an eighth if you’re talking PBP/LEL). But then again, after getting to Bristol, I couldn’t think of doing it again, but now I’m very happy with 300km in a day. We shall see.