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Bike Seat Blog

A Seat Belt For Companion Bike Seat

7/3/2015

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Back in March we had a customer in the UK pre-order a backrest for his bike seat and he asked about a seat belt for Companion bike seat. He has an 8 year old son that he bought the bike seat and backrest for, and wanted to make sure he could be safely buckled-in while out on a bike ride. I told him that we didn't have anything available right then, but I would work start working on a solution once we got closer towards releasing the backrest for our bike seats.

Since we're about a month away from the first backrests being shipped out, I finally made it over to the hardware store to start working on a seat belt for the bike seat. Turns out my neighborhood hardware stores had everything I needed to make a fully functional, removable seat-belt for the bike seat that can be strapped  on to the the backrest.
seat-belt for Companion Bike Seat
unbuckled seat-belt for Companion Bike Seat
I plan on doing some user-testing with this seat-belt over the next couple of weeks, and if it works well and is comfortable, I'll make these new seat-belts for the bike seat available for sale on the website soon after!
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Backrest Installation Guide Illustrations

6/27/2015

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Illustrations for the backrest installation guide arrived this week as we gear up for the first shipment of bike seat backrests to go out! The backrests are designed to be installed and removed without needing any tools.

The complete installation guide for the backrest can be downloaded on our Installation and FAQ page.
step 1 installing a backrest onto Companion Bike Seat
step 2 installing a backrest onto Companion Bike Seat
step 3 installing a backrest onto Companion Bike Seat
step 4 installing a backrest onto Companion Bike Seat
step 5 installing a backrest onto Companion Bike Seat
step 6 installing a backrest onto Companion Bike Seat
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Backrest Prototype is Ready for Manufacturing

6/7/2015

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The latest backrest prototype from the factory arrived today and it looks like we're ready to start manufacturing the backrests for Companion Bike Seat!
The backrest prototype arrived in the mail on Friday, but it wasn't until today that I was able to take it out for a test drive. First, I took a couple pictures comparing the first and third bike seat backrest prototypes side-by-side. You'll notice that the newest prototype (on the right in the picture) is taller and has a larger backrest cushion for the passenger (as intended). 

Installation of this latest prototype onto the bike seat was even easier than the first, which was great (also intended). Next step was to take it out for it's first test-drive!
companion bike seat backrest prototypes side-by-side
The new backrest worked like magic! We took the backrest out for a ride to Dolores Park for the day (just like everyone else in the Mission) and the backrest exceeded expectations. We brought the dog with us for the inaugural bike ride, and she enjoyed every minute of it. The backrest made it much easier to ride as a passenger, such that holding the dog in arms while riding to the park was a piece of cake.
bike seat backrest prototype overlooking san francisco skyline
kiwi dog posing with the newest bike seat backrest
I've let the factory know that we're a GO for manufacturing the bike seat backrests. As soon as we have a delivery date from the factory for the backrests we'll let you know!
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Photos of Backrest Prototype Number Three

5/19/2015

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We received some pictures from the factory this morning of prototype number three of the backrest, and things are definitely moving in the right direction. We noticed that the screws holding the cushion to the base-plate of the backrest frame are coming loose, so we're trying out a couple different ways to solve this. We should hopefully have this fixed in a week and shipping out to SF for inspection soon after!
Picture
Picture
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Photos of the second backrest prototype

3/31/2015

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Photos of the second backrest prototype just received today from the factory. Still a couple of items to be fixed, but it's very close to being ready to start manufacturing!
bike seat backrest prototype - side view
bike seat backrest prototype - top view with stash-box open
bike seat backrest prototype - complete view
bike seat backrest prototype - side view
bike seat backrest prototype - closeup
bike seat backrest prototype - view of support arms
bike seat backrest prototype - backrest backboard
bike seat backrest prototype - side view
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Backrest Prototype Received today

2/21/2015

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We received the first prototype bike seat backrest today from our factory in China and overall we're very pleased. The backrest installed easily, was very sturdy and comfortable, and panniers were easy to hang onto the side rails of the backrest frame. There are some elements of the prototype to clean up, but overall it met all of our requirements and is very close to being ready to start manufacturing! 

The factory did a great job packaging the prototype, almost too good in fact. It was triple-wrapped in bubble-wrap, then completely taped up. It took me almost twenty minutes to cut away all of the bubble-wrap!
backrest prototype installed on a bike seat out on Mission St
bike seat backrest prototype wrapped in bubble wrap
first bike seat backrest prototype front view
first bike seat backrest prototype side view
We did some home-grown load testing to make sure that the backrest could support reasonable weight against it and it held up without a problem. We also filled a pannier with over 25 pounds of water and hung it on the side rail and there were no issues at all. It's very sturdy, and we have just a couple aesthetic elements to clean up to be ready for production.
Companion Bike Seat with Backrest and panniers hanging on the side
As soon as the Chinese New Year holiday is finished the factory will start making a second prototype, accounting for all of our change-requests based on this prototype. Hopefully manufacturing won't be too far around the corner from there!
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Modified backrest prototype is complete

2/12/2015

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After reviewing some video footage from the factory of our first bike seat prototype, we realized we had to make some design modifications to make the backrest more sturdy when installed onto the bike seat. We added a second hook at the end of the backrest frame arms to hang over the side of the stash-box to make the backrest sturdy and secure whether or not there's a passenger on-board. Here are some pictures of this modified prototype:
bike seat backrest prototype
bike seat backrest prototype
bike seat backrest prototype
The factory is shipping this prototype out to us as we speak and we expect to receive it sometime next week. We'll provide an update as soon as we have this new prototype in hand. If all looks good, we'll start manufacturing right after Chinese New Year!
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Backrest Indiegogo Campaign was a Success

1/17/2015

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companion bike seat backrest prototype
Our Indiegogo campaign finished up last night, helping us raise almost $4,300 to go towards the development of the backrest for our bike seats! Thank you to all of our supporters and backers in helping us exceed our campaign goal by over 100%. 

We continue to work with our factory on the backrest development. Here's a picture of the first prototype that the factory put together:
We're reviewing the functionality, installation, and durability of the prototype to make sure it meets our requirements. The factory will be shipping the backrest to us very soon. Once we've worked out all of the kinks with the design, manufacturing will begin, and we'll have our backrests available a couple of months later.
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Backrest Prototyping Begins Next Week

12/20/2014

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After a couple of weeks negotiating with our factory on pricing and going back and forth on the design, we're finally ready to move forward with prototyping our bike seat backrest! According to our latest quote, it will take the factory about 15 days to complete the first prototype, and we'll post some pictures of it as soon as we receive them. Hopefully we won't have to go through too many prototype iterations, and we'll begin manufacturing before the end of January next year. Once manufacturing begins, it will take about a month to complete, then another couple of weeks shipping across the Pacific to get here to California.
updated bike seat backrest rendering
updated bike seat backrest rendering finalized design
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Backrest Specs are Finalized

12/6/2014

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On Friday this week the specs for our backrests were finalized and sent over to our factory. We're awaiting final cost estimates on these designs and will hopefully start prototyping within the next week or two!

To the right is a rendering of the backrest cushion, showing the detail in the stitching. We'll be using the same waterproof vinyl that we use with our bike seats.
bike seat backrest cushion specs
Below is the complete assembly specs for the backrest, with all of the components, both assembled and an exploded view. Initially, our backrests will only be available in black (same with our bike seats), though over time, we hope to offer multiple different colors for the frame color and for the cushion.
bike seat backrest assembly specs
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