#regel17 — Public Fediverse posts

Mooie dag om de aandrijflijn van mijn Flevotrike te vernieuwen. #regel17

Het was druk op de Oostvaardersdijk, maar er was geen enkele auto. En maar 1 #trike en die was bezet. #regel17

Van Groesbeek ging het de grens over en na een piepklein stukje door Duitsland via de Jansberg naar Gennep, vandaar naar Cuijk en daarna naar huis #regel17

@spmrider Und #regel17 ;)

Ah, hab bei der #hpvelotechnik #speedmachine ewig gesucht, wo sie die Rahmennummer hingestanzt haben, und bei dieser Version ist sie vorn am Ausleger (der eigentlich vom Rahmen unabhängig ist). Sie war auch teilweise unter einem Reflektoraufkleber und etwas Dreck versteckt 😎 #regel17

Hey kijk een #regel17 in #Dordrecht bij de @PI4DEC

Vandaag voor het eerst met de #trike Door de buitengebieden van Zeewolde. Voornamelijk Ibispad en Grote Trap. Bedankt @ArnoJanBoere 😄 Stoer polderland, wind, windmolens, slalommen tussen de koemest, mooi #regel17 1/2

Op de #trike naar het Flevoziekenhuis voor een CT scan van mijn longen. Puur om uit te sluiten dat ergens littekens zitten.

Het is alweer klaar.
#regel17

The weather forecast today was a bit gloomy so there was no #assenliggers group ride. But after walking the dogs and shovelling snow outside our home I went out for a short spin anyway, and it was actually really nice.
#velomobile #regel17 #biketooter #cycling #netherlands #assen #cyclinginfrastructure #cyclepath #snow

The 2026 British Human Power Club race meet calendar is now complete:

https://www.bhpc.org.uk/events/2026-races/

Note that due to the high entry fee and limited numbers the Derby Velodrome event is unofficial, and will not earn championship points. It's a rare opportunity to ride something other than a conventional track bike on an indoor velodrome.

After the popularity of the (narrow, twisty) track at Hereford, we're doing a double-bill with the similar track at Evesham. Should be good fun for the un-faired and multitrack riders.

And we've managed to secure exclusive use of the (eyewateringly expensive) Betteshanger Park track for a weekend in September. Not a full World Championships, but we hope that some riders from continental Europe will take the opportunity to come over to enjoy the track, which with its long swooping curves and good sight-lines is well suited to faster machines.

#HPV #recumbent #bicycle #tricycle #handcycle #velomobile #regel17 #biketooter

@FotoVorschlag: #FotoVorschlag #Kitschiges: Bin mir nicht sicher, welches der #Velomobile ich am kitschigsten finde:

* Das Weiße mit dem alte Mercedes-Grill,
* Das Orangefarbene mit blauen Punkten,
* oder doch das Pinke?

Vermutlich doch das Pinke. 😇

Foto gemacht auf dem Besucherparkplatz der #SPEZI 2025.

#Velomobil #Regel17 #Recumbent #SPEZI2025

A couple of days passed before I remembered exactly where I'd carefully stored the old freewheel that I wanted to install on my new wheel.

The old freewheel is a Suntour which I rode around with briefly over 20 years ago before I replaced it with something else for some reason that I can no longer remember. I didn't throw this nice part away - it emigrated with us.

The name now belongs to a Taiwanese company, but the original Suntour was Japanese. They were very innovative and made high quality parts for reasonable prices. My freewheel is from the early 1990s. It's a quality part with replaceable sprockets (I remember bike shops having a choice of sprockets back in the day) and it has a quiet clutch mechanism. Nice. No tick tick tick when free-wheeling.

Suntour had their own indexed gearing system and in principle this isn't supposed to be compatible with Shimano's SIS, but with a bit of careful adjustment it's working more or correctly.

Of course I'm still going to take apart the freehub from the other wheel and see if I can fix that as well. It's nice to have a spare.
#suntour #accushift #bicyclerepairman #bicycle #recumbent #regel17 #biketooter

This afternoon's bike trip was a 37 km round trip in one hour and ten minutes to collect a 20 kg sack of "greensand" olivine for the garden.

I think it's a good example of the efficiency of velomobiles: how they make human power even more effective than when riding a normal bike. Even on the return journey with a headwind and loaded with the sack of sand, it was easy to keep the speed above 35 km/h.

Being able to stow a lot of things inside the aerodynamic form of the bike helps a lot with efficiency. You feel extra weight when accelerating, not so much once you get going.

And why the olivine ? I calculated a few weeks back that in the worst case this last winter our heating could have emitted 105 kg of CO2. This sack is enough to absorb about a fifth of that amount from the atmosphere.

Each time we plant things indoors or in our garden we add a bit of olivine.

Once humanity (especially those of us in the highly emitting richer countries) has reduced emissions by a lot, it's possible to make a bit of a dent by using a product like this. But there's no chance of compensating for ever larger emissions by trying to mine ever larger amounts of olivine.

#recumbent #velomobile #regel17 #cycling #biketooter #olivine #greensand #weathering #enhancedweathering

And then, after one final reminder that the city will officially be worshipping fossil fuel next week, I got back home, with a loaf of bread for my lunch picked up in the city centre and a 20 kg sack of olivine ("greensand") which will eventually absorb about 20 kg of CO2 when I use it in the garden. I don't use any fossil fuels, but others unfortunately still do. It seems better to buy this stuff to dilute our home-made compost than other things which are more environmentally destructive.
#velomobile #regel17 #cycling #biketooter #weathering #enhancedweathering #olivine #greensand

This morning's exercise ride was a 34 km round trip to collect another 20 kg sack of greensand. We've been using it with our house-plants, mixed with compost from the garden to start tomatoes, and here in the front garden it's levelled up the ground above our potatoes.

Over time, each sack permanently removes 20 kg of CO2 from the atmosphere and the process is beneficial to growing plants.

Three sacks make a very small difference to our historical emissions, but if I'm going to buy soil of some kind for the garden it may as well be this. I certainly won't buy #peat which would help to destroy an ecosystem somewhere and release CO2 into the atmosphere.
#olivine #greensand #weathering #enhancedweathering #regel17

Photos of this morning's recreational ride. It took an hour and ten minutes to ride 37 km, my average speed being pulled down by riding slowly into a farmyard at around the half way point to buy another 20 kg sack of olivine.
We've been using this sand-like ground up olivine in pot plants indoors and also in the garden to fill gaps.
Plants seem to grow well in it.
Olivine is one of several minerals which absorb CO2 from the air as they weather so my feeling is that if I'm going to spend money on something to put in the garden or use for planting indoors, why not use olivine which has a small positive effect on the climate?
#regel17 #velomobile #cycling #netherlands #bicycle #greensand #olivine #weathering #enhancedweathering #BikeTooter

Covering 34 km in an hour and five minutes meant that today's round trip through the countryside set no records, but it was actually a shopping trip. On the return half of the journey I had a sack of 20 kg of #greensand (#olivine) behind the seat of my #velomobile (#regel17)