Oyama cx16D
#1
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Oyama CX16D
Bike will be delivered tomorrow. It's a 20" wheeled folder, disc brakes, Shimano Altius, 16 speed, has Schwalbe Big Apple 20X2.0 tires stock. Solid deal for $407.29 shipped and delivered. I'll post a few pictures after it gets a little ride or so. I needed a decently geared bike for some hilly areas I plan to do exercise rides through. I can't always rely on battery assistance to get me to my destination. Especially if I ever plan on being able to breathe again after covid.
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Last edited by tds101; 02-15-23 at 12:17 PM.
#3
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From: Henrico, VA
Bikes: Origami Gazelle, Origami Crane 8, Origami Cricket 7
Bike will be delivered tomorrow. It's a 20" wheeled folder, disc brakes, Shimano Altius, 16 speed, has Schwalbe Big Apple 20X2.0 tires stock. Solid deal for $407.29 shipped and delivered. I'll post a few pictures after it gets a little ride or so. I needed a decently geared bike for some hilly areas I plan to do exercise rides through. I can't always rely on battery assistance to get me to my destination. Especially if I ever plan on being able to breathe again after covid.
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Paul Pinigis
Owner of Origami Bicycle Company
Paul Pinigis
Owner of Origami Bicycle Company
#4
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It's not an ebike. I was stating the fact that I need a bike that's got sufficient gearing for hilly terrain that's NOT battery assisted. If it wasn't offered to me at such a low price I'd have passed. And if I decide not to keep it I know exactly who'll receive it as a gift. This even has tektro brakes, so I'm happy with the low end, but decent, specs. It's also easily upgradeable.
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#7
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From: Shenandoah Valley, Northern Virginia.
Bikes: '99 Trek 520, '20 Kona Sutra (FOR SALE 48cm), '21 Simon-Bikes mini-velo and a chromoly-framed folding bicycle with drop-bars and V-brakes, that rolls even while folded.
You're going to love those tires if you're not already familiar with them.
After you get the bicycle, can you confirm whether a threadless Dahon-style handlepost, w/one-bolt that secures the clamp to the steerer-tube, would work with it?
After you get the bicycle, can you confirm whether a threadless Dahon-style handlepost, w/one-bolt that secures the clamp to the steerer-tube, would work with it?
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I can't confirm, unfortunately, as I'm not in possession of an alternative handlepost at the moment. As for the Schwalbe Big Apple tires,...I have had multiple bikes with them on (usually aftermarket). They're pretty much my favorite, along with Schwalbe Big Ben's. Great tires.
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#9
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A few pics. So far the bike is pretty lightweight, solid, and seems quite decently built. No handlepost flex either. A few items need swapping, but I'll figure out what to do next week, after I ride it a few times. This will be my OFFICIAL exercise bike. The only real issues I've seen with the bike are a scratched quick release on the front wheel (it punctured the thin-ish box), and my magnet to keep the bike held together when folded is actually broken (where to find a replacement???). Really, minor annoyances IMO.


















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Last edited by tds101; 02-16-23 at 10:38 PM.
#12
QR-disc must die!!!
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From: Shenandoah Valley, Northern Virginia.
Bikes: '99 Trek 520, '20 Kona Sutra (FOR SALE 48cm), '21 Simon-Bikes mini-velo and a chromoly-framed folding bicycle with drop-bars and V-brakes, that rolls even while folded.
I'll pick up an extra magnet-assembly for you. In the meantime, can you remove the handlepost of the new bicycle and then measure, for me, the amount of steerer-tube that the handlepost clamps onto?
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Yes, very strange.
Tell me about it. It's a solid feeling bike though. Maybe it's for rigidity?
This company has actually been around awhile, and this frame design is used by numerous companies. The "clone" comment is hilarious, but irrelevant in my thread, as I didn't say anything of the sort, and I didn't ask a question about it. Please keep that discussion in it's thread.
Tell me about it. It's a solid feeling bike though. Maybe it's for rigidity?
This company has actually been around awhile, and this frame design is used by numerous companies. The "clone" comment is hilarious, but irrelevant in my thread, as I didn't say anything of the sort, and I didn't ask a question about it. Please keep that discussion in it's thread.
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Last edited by tds101; 02-17-23 at 10:24 AM.
#16
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From: Parts Unknown
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Just guessing here: Oyama used a less strong aluminum alloy and/or a welding process that wasn't as strong for price point reasons vs. the Dahon original design. At some point along the reverse engineering-consumer experience timeline, they realized they needed to add the rear fork (chainstay) braces.
See the Dahon (unbraced) design undergoing stress testing here:
See the Dahon (unbraced) design undergoing stress testing here:
Last edited by tcs; 02-17-23 at 12:21 PM.
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Just guessing here: Oyama used a less strong aluminum alloy and/or a welding process that wasn't as strong for price point reasons vs. the Dahon original design. At some point along the reverse engineering-consumer experience timeline, they realized they needed to add the rear fork (chainstay) braces.
See the Dahon (unbraced) design undergoing stress testing here:
https://youtu.be/6iO14EPJ2-U
See the Dahon (unbraced) design undergoing stress testing here:
https://youtu.be/6iO14EPJ2-U
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#19
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#20
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I just took an 8 mile ride on this baby, with almost constant ocean headwinds, and she was an absolute pleasure to ride. Stiff, responsive, actually geared nicely for my needs. I'm definitely quite impressed with this little gem. And the 70 psi Schwalbe Big Apple tires were so wonderful on the bumps, cracks, and potholes I encountered by the bay. She's a definite keeper.


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#22
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From: The Ring of Fire, the Global South, Asia-Pacific, the Tropics...
Bikes: Several, all affordably priced, none exalted cult artifacts or hype jobs
Just guessing here: Oyama used a less strong aluminum alloy and/or a welding process that wasn't as strong for price point reasons vs. the Dahon original design. At some point along the reverse engineering-consumer experience timeline, they realized they needed to add the rear fork (chainstay) braces.
See the Dahon (unbraced) design undergoing stress testing here:
...
See the Dahon (unbraced) design undergoing stress testing here:
...
The other thing is that we live, we've lived in a post-Dahon world for several years. No need to compare with and bring up Dahon at every turn.
Last edited by Ron Damon; 03-21-26 at 08:11 PM.
#23
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But besides that... lookee what I saw in the video above:

Let's unpack what we're seeing here on the bike in the foreground:
- A swinging rear triangle, for a trifold, but with the swinging pivot up at the seatstays, not down at the bottom bracket.
- Note the (truss?) just above the rear pivot, connecting to a bracket on the seat post, reducing the stress on it and transfering loads directly into the rear triangle, rather than through the top of the seat tube, which has previously been an area of fatigue cracks.
- Front Deltech cable.
- Rear chainstay cables/struts (it appears) a la Deltech, in place of the seatstay gusseting tubes shown on the frame in the background.
- I think the way that frame folds may be akin to a past Dahon model that lifted up and extended down in the center to fold, the model name escapes me, it was a faster fold.
Interesting.







