Mark Havran Solar Bike Part 3, a sojourn at Grin en route to Alaska

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2 жыл бұрын

Mark Havran's epic round the world solar ebike journey is in full swing. He's been solar cruising up the west coast of North America and once again stopped over for few days with us here at Grin. He was staying at Justin's place helping with some home renovations and they decided to head out on the electric sailboat to join the eSk8 group EV ride, and on the way catchup on his trip experience so far.
You can see the part 2 video when he visited Grin last year as part of an 8000 km shake-down test ride which goes into a lot of the technical detail and refinement of the build:
• Customer Profile, Part...
And our original custom profile on Mark from 2018 when we met up with him at the Bay Area maker faire where he told us of his original ambitions:
• Customer Profile, Mark...
Mark's website is:
solare.bike/author/markhavran/

Пікірлер: 68

@volvo245 4 ай бұрын

That trailer is impressive, to have a built in lightweight tracking mechanism constantly working in harsh road conditions for that long. Amazing really.

@RoundsOfWanting 2 жыл бұрын

Way to go Mark! So glad to have meet such a pioneer in this much needed technology!

@LeesChannel 2 жыл бұрын

You guys make such awesome videos, I enjoy everything from the lectures to the customer profiles and updates.

@weirdbikedesign-amotormini7377 2 жыл бұрын

Mark - it was great to meet you in Manhattan beach! I'm planning to post a video about our solar trikes soon. Glad to see your travels are continuing well, and best of luck with the rest of the trip!

@solarEbike 2 жыл бұрын

Forward to it. Did you guys make it home OK?

@ThomasMcFarland 2 жыл бұрын

Good luck on the road ahead, awesome work on the miles made!

@bui340 11 ай бұрын

That sun seeking solar roof is genius! Shade and charging optimation in one.

@MrWattsinside 2 жыл бұрын

Looking forward to his Australia trip. Im looking at doing one on and outrider usa trike and solar. Love his setup

@quevicular 2 жыл бұрын

Amazing guys. Truly amazing. What an experience that must be,

@mikekearsley2407 2 жыл бұрын

Another absolutely fantastic vid about your journey!!!!! Please keep telling your story. Thanks from Woodinville WA.

@phototristan 2 жыл бұрын

Cool call on the brighter lights. You can never been too visible to cars, IMO. I've had too many close calls with totally out of it car drivers while on my eBike.

@solarEbike Жыл бұрын

I think it really helps on stretches of road with poor visibility and areas where the shoulder is narrow or disappears, especially when there’s heavy traffic as was the case on parts of the PCH coming up the West Coast.

@make.and.believe Жыл бұрын

Just absolutely epic. So inspiring to watch while I'm finishing up my ebike build and starting on my solar trailer. Going to have to get up to Grin next time I'm that far north. Much love!

@PaulKentSkates 2 жыл бұрын

Yeah Mark!!

@alexhofvander 2 жыл бұрын

Very nice video and Mark is a very nice guy. Best of luck on your journey. He has inspired a lot of people. Me amongst others. I started 4 years ago building solar ebikes. So much fun.

@solarEbike 2 жыл бұрын

Thanks, Alex. I’ve been following your latest build on IG. When is your next big trip?

@alexhofvander 2 жыл бұрын

@@solarEbike this summer is dedicated to testing. Trailer is out of commission right now. Modifying the lid so I can slide out another 240w of solar for boost charging. So in May 2023 I start a 3-month tour of Europe.

@SB-fe4gt Жыл бұрын

If you go to a belt, just install the belt and install an extra belt at the same time and zip tie it out of the way. That way you can just clip the zip tie and slip the extra belt in place when needed.

@superandy89 2 жыл бұрын

So good! God speed!!!

@grindz145 2 жыл бұрын

This is so cool!

@Far-Beyond-Ordinary 2 жыл бұрын

Working on my solar e-bike recumbent camper. (micro e-bike campervan) It should be rolling soon.

@physiqueDrummond 2 жыл бұрын

cool, any pictures? blog site?

@Far-Beyond-Ordinary 2 жыл бұрын

@@physiqueDrummond I will post a video on my channel when I take my first trip with it. I have made three velomobiles this is my fourth which will have a coroplast pull-out sleeping area next to the storage area.

@Jerbrown 2 жыл бұрын

Great opening sound track!

@animal494 10 ай бұрын

Awesome!

@mattmatolcsi6457 2 жыл бұрын

Hope you let us know next time you're in San Diego, Mark. Would've been great to buy you a beer and chat about the bike and the trip. Good luck for the journey ahead!

@solarEbike 2 жыл бұрын

Coronado is home base for the foreseeable future so I’ll be checking in there sooner or later.

@globaldemise 2 жыл бұрын

Love it

@christians6350 2 жыл бұрын

awesome! :D

@craigrmeyer Жыл бұрын

That is really interesting how our buddy here only ended up wanting 600 watt-hours of battery capacity. That's a surprise to me, but homie isn't stupid, so I believe him.

@volvo245 4 ай бұрын

Very optimized design, probably based heavily on his routine. He knows how he wants to drive, speed, what fraction is human power etc.

@francescocaravella4556 2 жыл бұрын

They make a type of belt that opens up and can be screwed together, for belt drive conversions. Edit: it's called a split belt

@solarEbike 2 жыл бұрын

Thanks for the tip. That might be worth checking out if the splice can hold up to long distance travel demands.

@solarbiker 2 жыл бұрын

Nice.

@SonnyDarvishzadeh Жыл бұрын

I want a replica of his bike 😁 I have a e-gravel bike, but for longer rides, I think recumbent is the way to go.

@weirdbikedesign-amotormini7377 2 жыл бұрын

Oh, a thought on belt drive: I'm pretty sure you could use a standard belt drive on a Cruzbike or other FWD/MBB recumbent.

@rdkuless Жыл бұрын

Hi Justin... I hosted Mark in Portland on his way north thru BC and up to Alaska.. he mentioned he was heading to (i think) Australia... I haven't heard anything in a very longtime.. Do you have an update on our friends progress? PDX ROB

@abbynormal1 2 жыл бұрын

Bon Voyage!

@dennisocampo4760 Жыл бұрын

Awesome video and project. What’s your top speed? Be safe sir!

@iain.wlaird2275 2 жыл бұрын

Only thing I would add is a rear light to the trailer solar set up.

@tcm2kd5000 2 жыл бұрын

What did you use for a front fork? and did you run into any problems with it?

@solarEbike 2 жыл бұрын

MRP Rustler, discontinued. No problems so far.

@Timbodacious 2 жыл бұрын

nice. does it automatically adjust angle to track the sun or are you doing that manually?

@solarEbike Жыл бұрын

It’s automatic, using a couple of light sensors to find the optimal angle. However, I had to replace the rear panel in Prince George and one of the light sensors is now partially blocked so I’ve had to make manual adjustments which is kind of a chore after I’ve had it working automatically for over 10,000 km.

@mscir 2 жыл бұрын

Great work guys. I love my Grin equipment. Maybe you could explain how you use phase weakening.

@solarEbike 2 жыл бұрын

Field weakening is a feature available on Grin’s field oriented controllers. Using it allows a slightly higher top speed. It makes sense to use it on certain combinations of wheel size, motor type and battery voltage. You’ll find it in the configuration software under “top speed overdrive.“

@grintech-b-roll7081 2 жыл бұрын

@@solarEbike start with just 10A of field weakening to be safe and increment by 5A until you reach your desired speed.

@animal494 10 ай бұрын

What is the tail light bar he has installed?! (13:14) I agree with all other comments - what an amazing setup! I go back and forth between the complexity, reliability and weight or adding a solar charging system to an e-assist system for touring… compared to just lightening the load and getting out there. How does the pedal assist work from a total power perspective? If a normal tourer is pedaling at 150W continuous, and now you add a pedal assist only system that maxes at 250W, does the total power become 150w (pedal) + 150w (electrify assist) = 300w? Thanks for having an awesome website and sharing these amazing videos! Would love to know what that tail light setup is!

@GrinTechnologies 10 ай бұрын

Can't comment specifically on where he got the tail lights, but to the question yest the power is definitely additive. But in your example, if you have 250W from the motor system and 150W from the muscles, the total would be 400 watts (not 300 watts).

@animal494 10 ай бұрын

@@GrinTechnologies ah, thank you!! I thought the pedal assist system would only match the amount being pedaled, not always contribute at the peak power setting such as 250W. Thanks again!!

@solarEbike Ай бұрын

The red tail light visible at 13:14 is a Feniex Industries - Fusion-S Surface Mount (Red) and the two smaller amber turn signals are Feniex T3. I think a single red T3 would be fine for most people. You'll need a 12V power source. I use a DC-DC converter to step down 36V from the battery to 12V for lights and other accessories.

@solarEbike Ай бұрын

@@animal494 Keep in mind that "250W" generally does not mean "never exceeds 250 watts." Most "250W" motors go up to 500W or more when accelerating from a stop or when climbing hills and "250W" is their maximum continuous power rating. I find that I average around 250 watts over the course of the day but my motor can output over 1000 watts when I need it.

@mark38699 Жыл бұрын

So he can perpetually go forever on his solar charge? What's his average speed?

@GrinTechnologies Жыл бұрын

Mark discusses average speed in this and the previous videos. Solar is indeed perpetual for all intents and purposes, but how much distance you get in a day depends on the size of the solar panels and the weather. In practical terms it usually doubles the daily distance an average person can cover while bike touring.

@TheNewYorkDiver Жыл бұрын

what kind of food is he eating?

@stevewalters8809 Жыл бұрын

24 lbs or batteries

@physiqueDrummond 2 жыл бұрын

at 12m15s the cameraman not giving a hand, saying "Don't lose it! Don't lose it in the ocean" but secretly hoping they did.. 🙂

@shawnd567 11 ай бұрын

Does he have his own channel? He should definitely add more battery if he's having to ride longer, faster, can't take lunch breaks etc. You'd gain efficiency by being able to go slower and enjoy a nice lunch.

@GrinTechnologies 11 ай бұрын

You can check out his website: solare.bike Mark usually writes people back if you wanted to ask him questions through his site ;)

@solarEbike Ай бұрын

I really admire people who have the energy to shoot quality video while bike touring. I tried it and it wasn't a good fit for me. As for battery size impacting lunch breaks, I was able to take an hour for lunch most days which is plenty for me. The weight savings of a smaller battery means that some additional planning is needed in terms of which parts of the day will have more/less sun and more/less hill climbing. For my touring style, 600 watt-hours is enough. If I was charging every night from an electrical outlet, it would make sense to carry 2000 Wh or more.

@stevewalters8809 Жыл бұрын

I'm 3. 30amp Litihum 6 hrs of charging no sun

@tomprentice6935 Жыл бұрын

⚔️💪😎🏴󠁧󠁢󠁳󠁣󠁴󠁿👍(stroke)

@rotattor 2 жыл бұрын

Nice to see the electric bike and vehicle industry just exploding in the last few years, but with the good also comes the bad, just the way trade and manufacturing is now, get what you pay for when you don't do your homework, the learning curve isn't that steep.

@jedibusiness789 2 жыл бұрын

I’m not a fan of electric bikes, prefer pedaling…however will say an impressive technical achievement.

@stevewalters8809 Жыл бұрын

Too late for Alcan Trust Me

@GrinTechnologies Жыл бұрын

Mark already finished in Deadhorse a few weeks ago. You can follow his journey at solare.bike he's now in Australia, 2nd continent of his world tour.

@solarEbike Жыл бұрын

Arriving in Deadhorse on September 7, I may have been the last cyclist on the Dalton for the summer season. After the Cassiar Hwy, I had little trouble with mosquitoes so that was a nice bonus of riding in cooler weather.

@stevewalters8809 Жыл бұрын

4 get Alaska