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Archive for October, 2024

Malaghan Institute

When you’re a kid with dreams of saving the world, it’s worth a revisit even when life takes you down a different path. These days, I do my best for the person in front of me as a family doctor, but back in my youth, I spent a year in a cell signaling laboratory doing a BMedSci research degree.

I never became a scientist, but I can support their work vicariously. The Malaghan Institute is a Wellington research institute studying immunology and immune therapy, and applying this to allergy/inflammatory disease, cancer and infectious disease. Their research is world class and covers the spectrum from basic science to clinical trials.

This is the charity I will be raising money for with my 24 Hour Unicycle World Record Challenge. Please sponsor me and help our clever scientists come up with solutions and understanding of life’s most challenging problems.

My target is to raise $5000. That’s $10/km for 500km!

https://donate.malaghan.org.nz/fundraisers/kenlooi/12-24hr-unicycle-world-record

The 24hr dress rehearsal

I did a 12 hour practice ride for the 24hr record to get used to my equipment and see how far I could go. It’s hard to know how comfortable your setup will be until you’re in the saddle for a few hours, so it was an important part of my preparation. I rode my Triton 36 with Mad4One long handle-saddle, 100mm cranks on a Braus36 carbon rim/ Nimbus Nightrider lite tyre. It seems to be a fast setup, and in practice, I can wind it up to 27km/hr when riding a brisk pace.

My spare wheel- the Mad4One Unicorn 36 carbon rim/ Vee T-monster tyre is the same weight, but has greater rolling resistance. It would be an amazing wheel for gravel/off-road, but on sealed surfaces requires more concentration to keep in a straight line. It is also about 5% slower than the Nightrider, although the gap is narrowing as the tyre knobs wear down.

I started the day with porridge, my usual pre-race meal. A coffee to warm me up and then I headed down the track for an 0800hrs start. It would be a long day, but I had plenty of food/water to keep me fueled! I kept track of progress on my phone Strava, as well as my Lezyne Mega XL GPS computer. It was also a test to check battery life, especially bluetooth headphones and internet enabled on my phone. As well as this, I was trialing a Freestyle Libre 2 continuous glucose monitor, which gave me up to date readings on my blood sugar. A very interesting device which I will do a separate blog post about.

My legs felt good, and off I went! I knocked off a few laps cruising at 25.5km/hr. The strategy is simple- try to use as little energy while riding at 25km/hr for as long as possible. I suspected that my speed would drop to 20km/hr once fatigue sets in, but if I had enough buffer, it would give me confidence for the world record.

In my practices rides, there is a magpie who has been divebombing me from the trees. Today proved no different. The first few hours involved plenty of swoops and the occasional whack. Luckily my helmet offered good protection. After a hard whack the bird would take a break, but it always came back for more!

Now for most people, riding around in circles for 24hrs would be regarded as mind-numbing. I keep getting asked what I listen to. Previously, I had Spotify playlist, which was great…for about 30min. The problem is that music tends to dictate your tempo. There are various pump-me-up songs on the playlist, which is extremely fatiguing to listen to, and wasn’t in sync with my deliberately relaxed riding pace. This time, I set my phone onto national radio (RNZ), and listed to the Saturday broadcast. It was interesting enough- they interviewed a guerilla gardener and a movie producer. The sound of voices is an improvement over music, but still left me mentally fatigued. I turned it off after 5-6hrs. It will be fine to listen to for 2-3hrs at a time. When I do distance rides like Lake Taupo Cycle Challenge or Tour Aotearoa, I found it most relaxing to let my mind wander. Daydreaming is a very effective strategy for distance riding.

I was able to cruise at 25km/hr for 4hours before having a quick lunch break at 12pm. I scoffed down a cheese sandwich, chocolate milk and chocolate, all the time wary that my average speed was dropping. Luckily I eat fast and after 5min I was on my way again.

The post-prandial dip kicked in after lunch, and I suddenly had a power deficit. Interestingly, my blood sugars also dropped from averaging mid-6s to the low 5 mmol/L despite the food intake. My average speed starting dropping into the 23-24km/hr range.

It was a hard few hours from 12-3pm. At one point my legs locked on the corner and I ended up rubbing myself on the concrete. It looked worse than it was- just a graze on my chin but left blood everywhere!

Anna came by with the kids at 3.30pm with some cheese and steak pies, so it was another chance to stop and down more calories. I normally eat fast, but it still took a lot of effort not to choke whilst being mindful of the clock.

I hit 140km at the 6hr mark, which meant that my target of 250+km at 12hrs was achievable. The next 2hrs was difficult, but once I got to 200km (9hrs) I felt relief that I would surpass my target. When I hit 250km, it was enough to turn the grimace into a smile! I still had time to push it further, and stopped the clock on my Strava at 265km. Job done! I’ve proven to myself I can achieve enough buffer within 12hrs to beat the world record and even achieve the 500km target. According to Strava, my riding time was 11hrs44min, so some work required to reduce downtime/breaks.

Total distance (Strava) 265.6km

Total food consumed (riding): 1 large cheese sandwich, 1 1/2 cheese/steak pies, 3L Chocolate milk, half muesli bar, 100g Whittakers almond gold chocolate, 1 apple.

Strava 12hr

Track Survey

For my 24hr record attempt, I spent considerable time searching for a suitable venue. The Basin Reserve Cricket Ground which I used for my 2005 record has a fantastic 465m circular track, but is much busier these days, both with weekend events and general traffic. I was given one option in early November with no backup for inclement weather, so it was risky proposition.

The ideal venue would be flat, at least 400m in diameter, with no hard corners/turns. I contacted the Newtown athletic stadium, but they do not allow cycling on their running track. There is a concrete path around the athletic field, but with a couple of right angle turns it isn’t really suitable. Then I visited the Hataitai velodrome after seeing photos of their refurbished track. The steep banking was out of the question (I knew this from 2005), but there is a flat concrete track on the infield. Well, it looked good in the pictures. Turns out there are a whole lot of wooden planks across the track- not ideal to change riding surface every few meters. The 333m velodrome is also a bit small to be circling for 24hrs. I looked further afield to Lower Hutt, Upper Hutt and even Masterton. The further I went, the harder it would be to organise support crew and logistics.

I had pretty much settled on the Basin Reserve until I went for a run and came across a concrete track at my old school, Newlands Intermediate. I walked past this field every school day as an 11/12yr old, but it was a looooonng time ago. They have built a 400m concrete track around the bottom field since, and it was a gem of find! The track is smooth, has little traffic, and seemed pretty fast. I was so excited I contacted the principal the next day, who was very happy to help. They’ve been very supportive, and will allow me access to the track and school hall for the attempt. A group of Newlands Intermediate students also came and interviewed me for their newsletter.

One cannot attempt a Guinness and IUF world record without making sure the track is measured accurately. I contacted Cuttriss, a surveying/engineering/planning company, who were involved in measuring the Basin Reserve which I used for my 2005 record. They sent a couple of surveyors, Brett and Ollie, to help me measure the track. I can’t thank you guys enough!

The track came out slightly shorter than expected, at 390.76m on the inner circumference. Not the worst outcome, but does mean a few extra laps to hit my goal.

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photo credit: Brett Horne

24hr and 12hr World Record Attempt

It must be the worst kept secret, but many of you will know that I am having another go at the 24 Hour Unicycle Distance World Record. I set the world record on Feb 5th/6th 2005, riding 378.7km in a 24hr period. It was one of the toughest things I’d ever done, and probably something I never thought I’d do again. Well, fast forward almost 20yrs and I’m itching to have another crack.

My record stood for 2 1/2yrs, before Sam Wakeling (UK) smashed it with an incredible 453.8km ride in 2007. It was an amazing feat considering the technology of the time. Enough to put many off the pain and process of attempting the world record.

So what’s changed? The body is 20yrs older, but I’m going faster than ever. At Unicon, our world championships, I came 2nd in the 54km road race and 2nd in the 10km road race. That was for the overall, not my age group. Although I did not ride standard class in 2006, my times are equivalent or better than the year I was the road racing world champion.

The other major change is the technology. While geared hubs have been on the scene for a while now, I never felt they were suited for a long distance challenge. They are good for going fast for a short distance, but I don’t have the power to keep that pace for 24 hours. I will be using a standard ungeared 36″ unicycle, but the wheel is now 2kg (that’s right!) lighter than the wheel I used for my 2005 world record. Where the Coker Airfoil rim and TA tyre was the standard in 2005, now we’re on carbon rims with tyres that are 800g lighter, inflated with TPU tubes that weigh a fraction of butyl inners.

Add in 20yrs of experience pushing my body to the limit, some better handlebars and a comfortable seat, and I think I’m ready for the challenge!

I will be attempting the world record on the 16th/17th November 2024, 0800hrs-0800hrs, at Newlands Intermediate School, Wellington, New Zealand. Keep an eye on the 24hr Record Page for updates.