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Tern BYB

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Old 05-29-19 | 12:52 AM
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Bikes: Dahon Classic III 1987 - Dahon Ios X9 2011 - Birdy City Premium 2013 - Brompton M6L Black Edition I 2015 - Cinelli Hobootleg Geo 2017 - Ori Bikes M10 2019

Tern BYB


New Tern BYB; what do you think about? https://www.bikeradar.com/reviews/bi...yb-s11-review/

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Old 05-29-19 | 02:25 AM
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Originally Posted by FoldingStyle

New Tern BYB; what do you think about? https://www.bikeradar.com/reviews/bi...yb-s11-review/

its ugly design!
also pricing is ultrageus!
it costs one brompton full titanium!
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Old 05-29-19 | 03:56 AM
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I like this.

... but the price ...
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Old 05-29-19 | 05:13 AM
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Hmmm interesting looking bike. The compact looking fold certainly looks appealing. Two different models available too.

https://www.ternbicycles.com/bikes/985

UK prices for Tern seem to be much higher than elsewhere. .. will be interesting to see how its priced locally.
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Old 05-29-19 | 06:11 AM
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Originally Posted by FoldingStyle
From the review, sounds like the rationale Birdy fans give. Similar price point as well, though the drive train is better.
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Old 05-29-19 | 08:38 AM
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Tern's intro videos shot in London - not hard to miss the message in that.

They say '30% smaller than traditional 20" folding bikes'. Here it is with a Dahon Qix; perhaps Tern meant the Raleigh 20?

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Old 05-29-19 | 08:53 AM
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What is the price? I can't find it on the website. Did I miss something?
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Old 05-29-19 | 08:57 AM
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In order to get the front and rear wheel to meet, they had to do some funky folding at weird angles. I really love this bike!! Tern did something original. Hopefully, after 4 years of planning, they sort out all their hinge/weld problems.
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Old 05-29-19 | 09:42 AM
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Too heavy for me (probably over 30 pds. with rack, lights and MKS pedals), although I would avoid Tern anyway. But kudos to them for trying something different! I don't find it ugly.
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Old 05-29-19 | 09:54 AM
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So this is how it folds.
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Old 05-29-19 | 09:58 AM
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Originally Posted by wilfried
what is the price? I can't find it on the website. Did i miss something?
2.630 Ł
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Old 05-29-19 | 10:32 AM
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I found a USD price: $2495. I had to go to another review:

https://www.wired.com/review/review-tern-byb/
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Old 05-29-19 | 11:07 AM
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It won’t fold that compactly once you add a rear rack and possibly a front rack.
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Old 05-29-19 | 11:35 AM
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you'd have to design a custom rack to fit within the folded shape...
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Old 05-29-19 | 11:56 AM
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Looks like Tern will offer an accessory ClickFix mount for the headtube. Some baskets and panniers will fit on the low rear rack, but there's no top deck to strap things to.


Drivetrain folds to the inside. ✔️


Bicycling Magazine's review said it folds small enough to be carry-on, to which I have to respond, 'On what airline in what galaxy?' Folded dimensions of the bike alone are larger than airline checked baggage non-oversize case size limit.

Last edited by tcs; 05-29-19 at 10:22 PM.
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Old 05-29-19 | 12:07 PM
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The video suggested to me that the fold was fiddly and required nack, but I was loathe to comment without hands-on experience. Okay, it looks like the hands-on Wired reviewer agrees.
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Old 05-29-19 | 12:23 PM
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Originally Posted by wesgreen
Too heavy for me (probably over 30 pds. with rack, lights and MKS pedals)...
Tern lists the factory weight of the BYB P8 @ 31.4 lbs/14.2 kg. The BikeRadar reviewer said the weight of their test bike was more than the Tern website weight.

Last edited by tcs; 05-29-19 at 04:15 PM.
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Old 05-29-19 | 04:04 PM
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Just look at the zig and zag of the front fold. Nuts.

Other stuff, they got rid of the magnet. Good. But the rubbery strap still remains. I think in one of the reviews, they say that rear rack is for small panniers. Still I love the looks of the minimalist rack. Don't know if it is practical though without the top part.
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Old 05-29-19 | 11:54 PM
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I think it's interesting as a project, but it's too heavy, a little expensive, has too many steps to fold; in the end we'll see how it goes on the market.
Comparison with Brompton:


However there was already a 20" bike with vertical folding, and it was more compact. Nyfti Raio 2.0 (35 x 45 x 75 cm)35
x 47 x 75 cm.35 x 47 x 75 cm.

Last edited by FoldingStyle; 05-30-19 at 12:44 AM.
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Old 05-30-19 | 06:46 AM
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Originally Posted by FoldingStyle
However there was already a 20" bike with vertical folding, and it was more compact. Nyfti Raio 2.0 (35 x 45 x 75 cm)
And before that, the Caracle S (33 x 48 x 65 cm)



I applaud Tern for stepping out from offering Dahon knock-offs and trying something new. As FoldingStyle says, we'll see how it goes on the market.

Last edited by tcs; 05-30-19 at 06:53 AM.
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Old 05-30-19 | 07:24 AM
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From the International Tern BYB web page: "Whereas most other folding bikes weld a simple tube to a plate, the TFL Joint features precision-machined inserts at the tube junction, ensuring more consistent welding and more material at the most highly stressed areas."

Translation: "When we started out building folding bikes we had to engineer around some patents held in my dad's name and we hired some designers who had never built a bicycle before and the design they came up with simply welded a cut-off tube to the hinge body and it turns out that wasn't strong enough and some frames broke and riders were injured and at first we blamed it on misuse by the owners and then we blamed it on an 'out of specification' supplier and then we shut down our forum and clammed up and wouldn't say anything to anybody for the longest time and we went from industry golden boy to absolutely destroying our reputation but we've learned our lesson and now we over engineer and overbuild and our bikes are kinda heavy and kinda expensive but they're heck for stout."


Last edited by tcs; 05-30-19 at 07:27 AM.
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Old 05-30-19 | 07:43 AM
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X-factor

I have 3 folding bikes....including one Brompton. Other than the Brompton, they require moving and re-adjusting of both the handlebars as well as the seat in order to fold/unfold correctly which is exactly 50% MORE adjusting points than the Brompton requires to accomplish the same thing.

This bike is no different than my non-Brompton folders in that regard....and add-in a second hinge from a company with an already questionable reputation for their hinge-points.

In my opinion what separates the Brompton from nearly all other mainstream folders....it’s part of the “X-factor” in their design: that the handlebars require NO adjusting to fold or after unfolding.
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Old 05-30-19 | 08:09 AM
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Less is more.
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Old 05-30-19 | 08:11 AM
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“The BYB is the culmination of four years of focused work by the team,” stated Josh Hon, Tern Team Captain. “We had to develop some radically new technology for this bike and the manufacturing tolerances are, in the words of our factory partner, ‘tighter than automotive’. But we’re excited because new folding bike paradigms only come along every few decades or so, and we think the BYB falls into that milestone category.”
https://cleantechnica.com/2019/05/29...ing-your-bike/
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Old 05-30-19 | 09:33 AM
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Originally Posted by FolderBeholder
In my opinion what separates the Brompton from nearly all other mainstream folders....it’s part of the “X-factor” in their design: that the handlebars require NO adjusting to fold or after unfolding.
Yes, but that handlebar requires the rider to adjust to it...It hurt my wrists just on short test rides alone. When I requested it to be adjusted, it was if I had asked to break a sacrament. The shop mechanic grudgingly adjusted it and of course, it affected the Brompton fold (no longer as small).

I like this bike if it was a velo and cheaper. Not keen on it at its size and weight.
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