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Health and fitness data

Is more better?

Jan. 16, 2024
Exploring the balance between health data and intuition, this blog post delves into how personal well-being and fitness goals shape our relationship with technology and self-awareness.

Since the start of this new year I am working out harder than the previous months. I have set some goals for myself and have taken on a training scheme incorporating running, cycling and swimming. As I sift through the growing mountain of workout data, I find myself questioning: does having more data truly translate to better fitness outcomes?

And... there is light!

Installing dynamo powered lights on my road bike

Nov. 1, 2023
Discover how one cyclist's quest for the perfect lighting solution led to a custom installation of dynamo powered lights, ensuring a bright and hassle-free ride on the darkest roads.

The darker days are here in the northern hemisphere, and so is the need for good lights on your bike. Although battery powered lights can do the job, you need to keep them charged. I wanted a light system on my road bike that just works. Read along for some light in the darkness!

The Same, Differently

Where You Are Matters

Aug. 23, 2023

It's been over half a year since I moved from the city to the countryside. I regularly travel between these locations for work and leisure. Being a cycling enthusiast, I keep a bike at both places, and this has led me to discover a funny thing.

Impact of training

Analysing WHOOP's trend data

May 31, 2023
Join me on an intriguing journey as I explore the transformative impact of effective training and data analysis on my performance in the Fietselfstedentocht 2023.

This Monday I completed 235KM on my fixed gear bike during the Fietselfstedentocht 2023. It was a nice ride with fair weather and favourable wind conditions. Yet, I took the challenge seriously and prepared myself with some proper training. In this post I'll have a look at the trend data from my WHOOP in preparation for the Elfstedentocht.

Tips for Long-Distance Cycling

Riding 204KM on a fixed gear bike

Apr. 20, 2023
Embark on your own long-distance cycling adventure by learning from my post-COVID Fietselfstedentocht experience, packed with invaluable tips and tricks.

In preparation for this year’s Fietselfstedentocht (236KM), I took my bike and set out for an adventurous ride through half of the Netherlands. It was my first long distance ride after being infected with COVID. If you're considering a long-distance ride yourself, be sure to read along to discover invaluable tips and tricks from my experience.

The Ultimate Freedom Bike

Riding the Brompton foldable bike

Sep. 15, 2022
With the Brompton foldable bike you find yourself a very versatile companion to go whenever and wherever you please!

Rarely have I been so amazed by a bike: the past 5 months since I've picked up my Brompton foldable bike in Amsterdam have been great fun! About 500KM down the road, I'm happy to share some of my experiences with this ingenious piece of engineering, read on!

Computer says no

How today is ruled by Artificial Intelligence

Sep. 11, 2022
The weather app indicating rain caused an empty bike lane this morning, making me wonder about the power we put into these things.

This morning I enjoyed my bike ride on a nearly empty bicycle lane, picture perfect rays of sunlight illuminated the dew above the fields around me. Where were all the other cyclists? I suspect it has something to do with popular weather apps. It strikes me how great the control of computers on people's lives already is.

Escaping the flat tires

Are puncture-proof tires really puncture proof?

Nov. 19, 2021
Finding the answer to the question how resilient a puncture-proof tire really is took me quite some time, but alas - here it is!

You might wonder how puncture proof a "puncture-proof" bicycle tire really is. I set out to find the answer when I installed Schwalbe Durano Plus tires on my bike. It was inevitable for me to find the answer to the question: How many kilometers can you ride without flats using puncture-proof tires?

Fixed Gear Gran Fondo

Cycling 176KM through rain and wind

Apr. 10, 2021
Taking a fixed gear road bike for a gran fondo! Let some of my fun be of inspiration to you!

Today I took my fixed gear bike for a ride, 176KM from Amsterdam to America (Limburg, The Netherlands). Rain and wind added to the challenge, creating an ultimate test for man and machine. Let some of my fun be of inspiration to you!

Commuter bike checkup

How is my commuter bike doing after 21.000KM?

Jan. 10, 2021
This week my trustworthy commuter bike started making strange squeaking noises when braking, time to have a look at the bike after 21.000KM!

This week my trustworthy commuter bike started making strange squeaking noises when braking. It has been just over three years since I started cycling on it. People frequently ask me how the bike is performing and how the Gates Carbon CDX belt drive is doing? Time to have a look at the bike after 21.000KM!

Replacing a Shimano shift cable

Fixing the cargo bike after hunting for bears

Nov. 22, 2020
After some adventure with our cargo bike, the Shimano Nexus 7-speed shifter cable got damaged and needed replacement. Read my blog post to learn how to do this yourself.

Last week my son and I where looking for bears in the local park... a child's fantasy is priceless! Unfortunately, during some off road riding with our cargo bike, one of the cables got tangled up with a sturdy branch! Our wounded carbo bike was in need for a repair!

Riding with Omata One

Analogue cycling computer with GPS

Sep. 29, 2020
If you're looking for an alternative for common cycling computers, the Omata One is something truely special: it indicates your speed, distance, ascent and time ridden using mechanical hands!

For the past week I have been riding my bicycle with Omata One, a special bike computer. Its mechanical hands indicate speed, distance, ascent and time ridden measured using precise GPS data. It is fun, read along to know why.

Repairing a Giro AEON bicycle helmet

How to replace the Roc Loc 5 system

July 9, 2020
Try fixing your Giro bicycle helmet? I went through some trouble to do it! Read along to find out how.

This month my trustworthy Giro Aeon bicycle helmet broke down! Normally I wouldn't hesitate to invest in safety and thus buying a new one. But I like the Aeon helmet so much that I went through some extra trouble to fix it. Read along to see how I did it.

Minimalistic road bike with Gates carbon drive

Meet your new therapist: the Schindelhauer Siegfried Road

Apr. 30, 2020
For the past few months I have been riding the Schindelhauer Siegfried Road bike with the Gates CDX Carbon Drive, read about this beautiful minimal bike in this post.

For the past few months I have been riding a special kind of bike, the minimalistic Siegfried Road from Schindelhauer. It is unlike most road bikes as it lacks a conventional chain and derailleur. It features the Gates CDX carbon drive. It's an exercise in minimal design. After riding it for nearly 1000KM, it's time to tell you all about it.

Whoop strap review: 24/7 wearable sensor

Beyond fitness tracking and smartwatches

Dec. 31, 2019

The past months I have been wearing the WHOOP Strap 3.0, a wearable sensor that collects health and fitness data. It's different compared to most other fitness bands as it was designed with professional athletes in mind. It is focussed on daily strain, recovery and sleep. Read along to find out how this works.

Supernova E3 Pro 2 dynamo powered headlight

Replacing my bike's headlight

Nov. 26, 2019

Earlier this month my dynamo powered headlight on my commuter bike needed replacing. One of the electrical connectors broke of, likely caused by intense daily use. I searched for the best possible light, one that would be extremely durable and bright. I found the Supernova E3 PRO 2 and decided to install it on my bike.

Riding with a power meter on your bike

Installing and using the 4iiii Precision Powermeter

Aug. 28, 2019
In this post I describe my experience with installing the 4iiii Precision Powermeter on my road bike.

After I created a minimal road bike, I decided to install a power meter to find out what's it like to measure the power output of my legs. What can you learn from a power meter? Is it difficult to install? Is it worth it? Read along to find out.

Creating a minimal road bike

Recombining and refinishing old parts into a new bike

Aug. 18, 2019
I wondered how hard it would be to make a bike from spare parts I had in my garage

Over the past months I have worked on different bikes, leading to an accumulation of spare parts in my garage. I wondered how hard it would be to make a new bike using these spare parts. I decided to take advantage of this moment to refinish some parts, removing excessive decals in order to create a minimal looking road bike.

Assembling a cargo bike

Setting up the Babboe Big cargo bike

June 25, 2019
How hard can it be to assemble a cargo bike? This posts shares my experience with assembling the Babboe Big cargo bike.

This month our Babboe Big cargo bike arrived, in boxes. The engineer in me thought it was a good idea to assemble the bike by hand. This way I would know exactly about all its parts and fittings, handy knowledge for maintenance. Read along for my experience and some practical tips.

Solo around the Markermeer (211KM)

Tips to prepare, to endure and to enjoy long distance cycling

May 29, 2019
This week I took my bike for a long distance (211)KM ride around the Dutch Markermeer, solo! Read along for practical tips for long distance cycling.

This week I took my bike for a long distance (211KM) ride around the Dutch Markermeer, solo! Unlike participating in an organised event with service, support and company along the way, going solo requires a different preparation, mindset and planning. Read along for some practical tips for long distance cycling.

The best bike computer app: Cyclemeter

Get advanced ride data with a flexible setup

Apr. 30, 2019
Collect advanced bike ride data using your smartphone connected to external Bluetooth sensors and a steer mounted display.

This month I have intensified my training to become fit for this year's Fietselfstedentocht, a 235KM bicycle ride through Friesland. Over the years I have tested different kinds of bike computer setups: from dedicated (and expensive) Garmin Edge bike computers to no data at all. Eventually I came up with a flexible setup to gather advanced ride data using my smartphone, let me explain how this works.

One year on the ultimate commuter bike

6000KM in 12 months with Gates CDN/CDX and Shimano Alfine

Feb. 27, 2019
Answering questions from one of the most popular posts of last year, I am reviewing my commuter bike after one year of extensive use through winter and summer.

A year ago I tried to create the ultimate commuter bike, a modified Sensa Cintura with the Gates CDN/CDX carbon belt drive. I received lots of messages from cyclists and commuters from all over the world. From the Swiss alps, France, Italy, Germany, United States and even "down under", Australia! You all wanted to know: how does the upgraded bike hold up?

Business in a bag

Using a waterproof backpack to fit my gear

Dec. 22, 2018
After much testing I have selected a bag and set of cases to fit my entire business, wherever I go.

Over the past few months I have been testing different bags and cases to fit everything I need to run my business. As I commute by bike, the bag needs to be waterproof. The problem with waterproof gear is that it is usually very bulky. I need my gear to be both portable and representative, a challenge worth a blog post!

Swimming and cycling with Apple Watch

Different activities in the workout app in watchOS

Sep. 27, 2018
This month I tested the newest watchOS while swimming and cycling.

This month Apple launched a new Apple Watch series and released an update to watchOS. The focus of the smartwatch is more and more gearing towards health and fitness. This made me curious, how well does Apple Watch work for different activities?

Removing paint from a bike frame

Uncover the aluminium with chemicals and sanding paper

June 9, 2018
Using dichloromethane and sanding paper I removed the paint from my bike frame to create a minimal, raw aluminium look.

There is beauty in raw, unfinished material that is often hidden with superfluous layers of paint. I like things to be true to the nature of the material. My bike was painted black - not bad - but I wondered what it really looked like from a material point of view.

Listen to your body

Why I stopped using health and fitness sensors

May 17, 2018
Using health data gathered by sensors and wearables I learned to listen to my body. Now I have stopped using bluetooth sensors all together.

A good customer of mine was once a physiotherapist, he told me about people asking him to "feel their muscles" to tell them how they where doing. "Crazy!" he told me: "I can never feel better than the people themselves, if they only would listen to their body". This caused me to question the health and fitness sensors I use.

Creating the ultimate commuter bike

Riding at 35KM/h with Nexus Alfine 8 and Gates Carbon Drive

Feb. 24, 2018
Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.

This winter I use a Sensa Cintura bike with a Gates Carbon belt drive as my daily commuter. It's a bike designed to be nice to ride thanks to its sporty lightweight frame. It's also meant to be low on maintenance thanks to the belt drive and Nexus Afline 8 integrated gear hub. After 1800KM in just eight weeks, it was time for some upgrades.

Commuting by bike

One week (240KM) on the VanMoof Electrified S

Dec. 2, 2017
One week on the VanMoof Electrified S E-bike testing it for commuting and comparing it to a normal bike.

For a few years now, I commute to work using a bicycle. I have lost more than 15KG since I stopped using my scooter. This week I tested a VanMoof Electrified S, an electric bike with an industrial, minimal design. Is it any good? How does it compare to a normal bike? Will an electric bike make you lazy? Read along to find out!

Fietselfstedentocht 2017

Cycling the 235KM bicycle tour through Friesland

June 30, 2017
Cycling the 235KM long Fietselfstedentocht through Friesland

This month I cycled the Fietselfstedentocht, a 235KM tour through Friesland. This tour brings you through various Frisian cities throughout one of the most Northern provinces of the Netherlands. The tour was first organised in 1912 and has grown to become legendary due to its history, challenge and popularity; well worthy of a blog post!

One year of cycling

GPS recording an entire year of bike rides using Garmin and Strava

Dec. 31, 2016
GPS recording an entire year of bike rides using Garmin and Strava.

One year ago I started recording all my bike rides, including commutes, short grocery trips and long Gran Fondos. I equipped my bicycles with Garmin Edge computers that recorded location (GPS), speed, cadence and my heart rate. I covered more than 7683 kilometers during 320 hours of riding. It's time to review all the data and share some photos I took along the ride!

Batavus Champion bike from 1978

restoring retro glory with some help from the Internet

Sep. 3, 2016
Restore the retro glory of an old bike from the 70s using the internet.

Almost a year ago I bought an old steel racing bike from 1978. I wanted to figure out if using a bike to commute worked for me. It did! I used it to ride more than 1000KM before I decided to get a modern road bike. Now, almost a year later, I decided to put the powers of the internet into good use: to bring the bike back to its retro glory!

All blog posts
Lights are powered using a dynamo - never have to think about batteries!
Lights are powered using a dynamo - never have to think about batteries!
I hope that I won't need it anytime soon; but my bike has a perfectly fitting toolkit inside the foldable bike frame - how clever!
I hope that I won't need it anytime soon; but my bike has a perfectly fitting toolkit inside the foldable bike frame - how clever!
Quad Lock smartphone mounting system
Quad Lock smartphone mounting system
Artwork for this blog post was created with DALL-E - the amazing AI system that generates original images
Artwork for this blog post was created with DALL-E - the amazing AI system that generates original images
WHOOP's data during the entire day of the Fietselfstedentocht
WHOOP's data during the entire day of the Fietselfstedentocht
Oostvaardersplassen near Lelystad
Oostvaardersplassen near Lelystad
Hardgraft iPad Pro case with the keyboard folio and Apple Pencil
Hardgraft iPad Pro case with the keyboard folio and Apple Pencil
Wahoo RFLKT+ showing realtime data from my bike computer app - obviously I was standing still here... all the zero's (except my heart rate)
Wahoo RFLKT+ showing realtime data from my bike computer app - obviously I was standing still here... all the zero's (except my heart rate)
Beautiful sky on the Houtribdijk
Beautiful sky on the Houtribdijk
Downtown Amsterdam, don't forget a lock!
Downtown Amsterdam, don't forget a lock!
My bike in Summer
My bike in Summer
Beautiful scenery - long straights on dykes near Flevoland
Beautiful scenery - long straights on dykes near Flevoland
What matters most is the ride itself, don't forget that!
What matters most is the ride itself, don't forget that!
Connecting the 4iiii Precision Powermeter to the Cyclemeter app
Connecting the 4iiii Precision Powermeter to the Cyclemeter app
Wearing my helmet again!
Wearing my helmet again!
Crossing the last river by ferry
Crossing the last river by ferry
The beam is amazing - it just works, really well!
The beam is amazing - it just works, really well!
Packing it together, Hardgraft and Ortlieb
Packing it together, Hardgraft and Ortlieb

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