Blog
See you in Portland
And we're loaded and off to Portland this weekend for our first time attending the Pacific Trike Fest celebration of all things recumbent trike. If you live in that part of Cascadia and want to field test a dual motor drive Catrike or generally talk shop with Justin at his booth, come and pay visit!
It's on Saturday from 9am to 4pm at the Portland Community College, Sylvania.
FInal Video Prize
Well thanks everyone, with over 16 video submissions we had a great representation of builds for our final best project video awards category. In the end, we felt that Martin from Normandy with his "Super 73 Upgrade" pulled all the elements together to just nudge out in front.
As a video it gives a compelling back story of Martin's experience with his first ebike taking him from high school to now studying electrical engineering in univeristy. It seamlessly flows into the challenges and solutions of fitting a motor into a bike with a different dropout standard, and demonstrates just how much new life you can bring into an old factory ebike. The entire production itself is top notch and a joy to watch. So congratulations Martin, $1000 of Grin buckeroos are now on your store account for whatever future endeavors suit your fancy!
We look forward to seeing more build content on your channel, you've clearly got a knack for this.
And 2nd Place
OK, so we were only planning a single prize but some of the others were so good that we needed to do more than a token thank you. It was a very close 2nd place for Oliver in Australia with his dual motor Cyclopes build. This fully custom fabricated sheet metal frame frontloading cargobike is an inspiring piece of art in itself, but one with demonstrated great utility for his rural lifestyle.
The video combines build pictures, aerial photography, along with an engaging dialog and some handy ride footage. If you look at Oliver's youtube channel he's also worked on larger pickup truck EV conversions and so it's no wonder he was "first" ebike came out so good, the man is in his element, and we're throwing a $250 runner-up prize his way.
And Many More
Finally, there are a number that didn't necessarily have the same video production chops as Martin and Ollie but that still featured great content and builds. It's a bit random but we felt that the following 3 submissions all had unique character and are also getting a $100 store credit prize
|
Tim's Build showcases a Metrofiets cargo bike conversion using a locked clutch SX1 front motor for regen. It shows all the details and rationale for his component selection and shows how even a cargo bike can sip energy at just 4.6 Wh/mi on a 60 mile trip. |
|
This relatively short video by Vaxt shows how he got a used factory ebike and made it run even better with a 3rd party controller, battery, and control system. He even managed to tap into the integrated torque/cadence circuit from the Shengyi mid-drive, figure out the signal ranges and then interface that to our Cycle Analyst for full torque control. Very well done, and a perfect example of what is possible with the thousands and thousands of out of warranty factory ebikes soon to be filling up the landfills. |
|
We've been most impressed with all of Cain's adaptive trike and bike builds he's put on our gallery, and were delighted that he also did a video walkthrough explaining the origins of his many creations. This is a succint 5 minute summary of narrated pictures and videos that show prolific custom builder at work! |
Grinvestors
So that's it for this campaign, thanks again to all who participated, and a big thanks as well to the Grinvestor who helped sponsor this. He wanted to remain anonymous, but is one of several dozen generous people who have helped finance Grin's growth and R&D by loaning funds to us in exchange for interest payments in the form of store credit. Collectively our Grinvestor community has contributed more to enabling our success than all the traditional banking and loan finance partners combined, and they all deserve a shoutout!
Last Week for Best Video Submissions
The responsibility of finding our final week winners for the Grin it to Win it context fell to Justin, who had a lengthy shortlist of great builds to choose from.
We're now in the final week of accepting submissions for the Best Video build with the $1000 grand prize, so if you're working on a video feature, be sure to put "Grin IT TO WIN IT" in the title so we can find it and you will be in consideration!
Here's a number so far:
Project Gallery Final Week
We're now in our final 6th week of the "Grin it to Win it" campaign that has seen over $3000 in prizes given out to people submitting details of their ebike builds to our customer project gallery. Noteable submissions in the last week include Jack Butler who managed to upload his solar bike build while actively competing in the final stages of the 2024 Suntrip race, just a few days before he came out on top in a nailbiting finish!
We'll be extending this last random draw and staff pick to May 20th to give people a little bit more time, then after that we are giving until the end of May to select the final $1000 prize for the best project video.
Spezi Wrap-up
A remote thanks to everyone who came to see us at the Spezi show in Germany last weekend. What an amazing congregation of innovators, enthusiasts, and business leaders pushing the envelope of small scale human transport. From pedal generator drivetrains to collapsible solar quads, this fair had it all and we look forward to coming back.
It was encouraging to see so many setups already sporting Grin hardware and to talk to so fans of hub motors, regenerative braking, and open systems. Europe is ready to challenge the Boring Bosch takeover, and we will be working hard to make our stuff more readily available that side of the pond.
Grin will have a booth at SPEZI this weekend!
Ever since we heard about the Spezi bike show in Germany we knew this was an event we were born to attend. Covid got in the way the last few years but finally now the stars are aligned and thanks to the help of our partner ebike-solutions, we will be there to exhibit!
This is the show featuring all the "special" bikes that get a short shaft at the normal trade shows. That includes recumbents, tandems, cargo bikes, velomobiles, folders, trailers, quads, and all the other creative wheeled misfits that the mainstream bike culture doesn't quite know what to do with.
We'll be there with examples of Grin's All-Axle hub motors, air shippable LiGo 10X batteries, and regen capable motor controllers. This open hardware standard provides electrification options and versatility that stand in sharp contrast to the proprietary locked Bosch and Shimano systems that currently dominate Europe.
The show is in Southern Germany, close to Switzerland and France, and we looks forwards to meeting up with many of our European customers and partners at our booth. So come by and check it out.
Torque Arm Videos
It was exactly 1 year ago that we announced the release of three new torque arm designs. The torque arm V5, V6, and V7 set a new benchmark for both performance and bike compatibity, making the most of a dumb Chinese axle standard. We've now completed the final and most complex installation video for this set, with the "Built for Regen" Torque Arm V7:
That follows in the footsteps of the V5 and V6 installation videos from a bit earlier.
These splined insert torque arms have now largely replaced our previous designs, and are also available from our own store but also directly from Amazon for customers in the US (V5, V6, and V7).
M16 Axles
By popular request, we've also made a 16mm axle insert option for the V5 and V6 arms. This gives compatibiilty with more powerful motors that use larger M16 axles. A similar option for the clamping V7 Torque Arms is also in the works.
Grin It to Win It - Customer Project Campaign starts April
Eight months ago in the sweet summer heat we unleashed our customer ebike Project Gallery to the world.
In no time we had dozens of submissions pouring in, and prizes were announced every week as Grin's Staff got together to vote on their favorite ebike builds. It was good fun, but we got distracted over winter and let things slip.
Fortunately one of our many generous Grinvestors said he'd like to offer up $5000 of his accumulated store credit as funds for other people to use, providing a great opportunity to kick off a new round of gallery projects for 2024.
We're starting this Grintastic Gallery Giveaway with a retroactive launch of monthly prize draws, and have just chosen 6 submissions at random for the months of October to March:
So congratulations to each winner above. Each of you now has $250 of store credit added to your ebikes.ca account to use ordering whatever you like.
For the rest of the this campaign, each week we'll have a different staff member at Grin pick their peronal favorite build in the gallery and make a little video on why they like it and award $250 of credit. We'll also do a random draw of all the submissions from that week and give the draw winner $250 as well. Funds you can apply towards any future orders from Grin. It doesn't get easier than that.
As the campaign winds up at the end of May, we'll then select a new prize winner for the best project build video with a final $1000 prize.
If you've been huddled away all winter building up your dream e-machine, now is the time to tell your project story in photos and videos, upload them to our gallery, and show off your creation to the world.
Grin's Battery "Fire Sale"
Thanks to all who came to visit us at the BC bike show the previous weekend!
The attendance levels were great and our talk on our 20 year experience dealing with lithium battery safety on ebikes was also well received. For those who wanted watch but couldn't attend the show, we've just published a filmed version of this talk on youtube:
Grin's Perspective on Ebike Battery Fires, 20 Years of Experience - Live from the BC Bike Show
Non-UL Battery Blowout: 25% Discount
As explained in the video above, the recent media attention around micromobility battery fires has brought a large scrutiny to the industry, and dramatically changed the insurance landscape so nearly everyone in North America is required to have batteries with UL2271 certification.
We of course are included in that, and in order to meet the insurances' requirement that 100% of our battery packs are UL certified we have just started a blowout sale on ALL our current battery inventory. Every single non-UL battery model is currently discounted by 25%. This is your chance to get a high quality pack with the best cells at a great price.
Are these batteries less safe?
Absolutely no less safe than a UL certified pack. Given an expected construction standard and BMS functionality, the safety of a battery is almost entirely determined by the brand of cells used in the pack. These batteries are all built using top-of-the-line Panasonic 18650 GA cells or Samsung 50G 21700 cells which have a nearly flawless track record. They have an established robust BMS circuit and sound mechanical construction, but due to peculiarities in UL's BMS requirement they can't quite be UL certified, and our insurers don't like that.
Their stubbornness is our pain and your gain!
Are they warrantied
Yes, our standard Grin warranty still applies and the batteries are as reliable as they have always been. Our plan was to offer both UL and less expensive non-UL batteries and give customers a choice, but the insurance folks want us to exclusively carry UL certified batteries to renew our term.
When will you have UL listed packs
By later this spring we will be offering exactly the same batteries but with UL2271 certification. Because of the expensive testing fees we will start off with just a couple of the most popular models, and gradually add more varieties as cash flow allows. The UL certified packs will be functionally identical to what we offer now, but will simply cost more, both to pay for the testing fees and the more expensive UL BMS boards.
Check us Out at BC Bike Show, Mar 2-3rd
It's that time of year when people are thinking more about the upcoming bike season and the BC bike show is just around the corner to help kick it off!
We will have a booth showcasing our new kit systems using the Superharness with modern displays if you want to come by and have a look.
Plus you'll get to see how our almost fully flushed out and almost fully regulatory certified LiGo 10X Batteries are progressing. There are many other local bike and ebike exhibitors at the event and it's a great chance to check out BC biking and outdoors scene.
Live Presentation
On Saturday at 11:30 am we will also be giving a presentation on the Cycle Stage all about lithium battery safety, which has been a topic heavy in the news recently. With nearly 20 years in the field we have more than enough firsthand exposure to share relevant experiences and separate the facts vs fiction.
Free Tickets
We've also got a handful of free tickets to give away to our loyal customers who want to attend, so send us an email if that will help you show up. They are first come / first serve.