Dahon K3 Plus 16 inch(349) Folding Bike(KAA693) Flat Welding Version
$4,580.00
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The Dahon K3 Plus 349 Flat Welding Version (KAA693) is a 16-inch, 349-wheel, 9-speed aluminium folding bike with disc brakes, a flat-welded frame, Dahon's Deltec frame cable and a telescopic in-folding handlepost. Dahon Hong Kong lists it at about 10.44 kg, with a maximum load of about 100 kg and a folded size of 72 x 39 x 63 cm (L x W x H), in Grey, Black and Green.
Key facts
- Category: 16-inch (349) folding bike, 9-speed, disc brakes
- Brand: Dahon (founded in the USA in 1982, now mainly produced in Shenzhen), K3 Plus range, frame KAA693; listed by Dahon Hong Kong as the "Flat Welding Version (telescopic in-folding handlepost, Deltec cable)"
- Standout features: smoother-looking flat-welded frame; 349 wheels; Deltec frame cable
- Key numbers: about 10.44 kg; maximum load about 100 kg; folded 72 x 39 x 63 cm (L x W x H); kickstand not included
- Best for: riders who want a K3 Plus with 349 wheels from the factory and like the cleaner look of a flat-welded frame. If light weight matters most, the 305 version (9.8 kg) is lighter
What is the "Flat Welding Version"?
Dahon Hong Kong lists the K3 Plus 349 on two product pages, the "349 Version" and the "Flat Welding Version", with identical specifications (349 wheels, 9-speed disc brakes, about 10.44 kg, 72 x 39 x 63 cm, about 100 kg load). According to Jollymap's article 2026 Ultimate DAHON Folding Bike Collection, the flat-welded frame has a smoother, more streamlined look. Dahon does not list any difference in weight or strength between the two.
What problem does it solve?
The 14-inch, 3-speed K3 has few gears for Hong Kong's hills. The K3 Plus puts 9 speeds and disc brakes on a 16-inch frame, and the 349 version comes with larger 349 wheels from the factory. Jollymap's article 257 notes that many owners upgrade to 349 wheels, and article 204 points out that the first-generation K3 Plus fork was too tight, so fitting 349 wheels meant replacing the fork too. Buying the 349 version saves that work.
Who is it for?
The K3 Plus 349 Flat Welding Version suits riders up to about 100 kg who commute or ride routes with hills and want 9-speed disc brakes and 349 wheels on a 16-inch folder. Two things to note: first, at about 10.44 kg it is heavier than the 9.8 kg K3 Plus 305; second, the official folded dimensions add up to about 174 cm, slightly over the MTR's 170 cm luggage limit. Dahon has not published a rider height range for the 349 versions.
349 wheels
349 and 305 are ISO rim diameters in millimetres. Both are called 16 inch, but the 349 wheel is larger. Dahon Hong Kong lists 349 wheels for this model.
Deltec frame cable
Dahon Hong Kong lists this model as a Deltec cable ("馬甲綫") version. The Deltec cable is Dahon's tension cable fitted under the frame, linking the head tube and down tube to form a triangle; Dahon says it increases frame rigidity by about 15% and reduces stress on the folding joint. Jollymap's article 257 notes that on Deltec-equipped K3 Plus bikes the gear and brake cables run along the Deltec cable to the rear inside a protective sleeve, for a tidier look.
Telescopic in-folding handlepost
Dahon describes this model as the "telescopic in-folding handlepost" version. Jollymap's article 204 on the second-generation K3 Plus notes that the handlepost height is adjustable, the front disc caliper moved from the left to the right side, and the cable routing moved to the right to suit the new folding direction.
9-speed disc brakes and folding pedals
Dahon's official spec is 9-speed with disc brakes. According to the family comparison in Jollymap's article 295, the 349 Flat Welding Version comes with folding pedals, while the 305 version has non-folding aluminium pedals.
How to choose a Dahon K-series model
This page is the K3 Plus 349 Flat Welding Version. Compared with the rest of the range:
- Not fussed about the weld finish: the Dahon K3 Plus 349 16-inch Folding Bike KAA693 has the same official specs (349 wheels, 9-speed disc brakes, about 10.44 kg, 72 x 39 x 63 cm); the only sourced differences are this page's flat-welded frame and the colours.
- Want the lighter 305 version: the Dahon K3 Plus 16-inch (305) Folding Bike KAA693 V2 uses 305 wheels and weighs 9.8 kg (Dahon official).
- Want the K9 International version: the Dahon K9 16 inch 349 Folding Bike with Deltec Cable (KAA693) - International version also pairs 349 wheels with the Deltec cable, uses Dahon custom 9-speed disc brakes, weighs 10.4 kg (Dahon official) and folds to 72 x 40 x 61 cm.
- Want Shimano gearing and hydraulic brakes: the Dahon K9 16 inch 349 folding bike (KAA693) - Hong Kong Edition has Shimano Sora 9-speed, an 11–32T cassette and Tektro hydraulic disc brakes, at about 10.57 kg (Dahon official).
- Want internal routing and quick-release pedals: the Dahon K9x 16inch (305) Folding Bike - Japan Version uses 305 wheels, an internally routed frame, a fixed-height handlepost and MKS quick-release pedals, at 9.5 kg (Dahon official).
- Want something lighter still: the Dahon K3 14-inch 3-Speed Folding Bike KAA433 uses 14-inch wheels and 3 speeds, at 7.9 kg without pedals (Dahon official).
For the whole range, read Jollymap's articles Dahon K3 Plus family comparison and the Korean-version K9 and 14-inch K3 vs 16-inch K3 Plus (both in Chinese). The table below compares wheel size, gearing, brakes, frame and weight across the Dahon K3, K3 Plus, K9 and K9X:
| Model | Wheel size | Drivetrain | Brakes | Frame and handlepost | Weight (approx.) | Folded size (L × W × H) | Best for |
|---|---|---|---|---|---|---|---|
| Dahon K3 14 inch 3-Speed Folding Bike KAA433 | 14" | 3-speed | V-brakes | Aluminium alloy | 7.9 kg (Dahon official, without pedals) | 68 × 31 × 65 cm | Riders short of space at home who mainly ride short, flat trips and want easy storage |
| Dahon K3 Plus 16 inch(305) Folding Bike(kaa693) 2nd gen V2 Deltec Cable | 16" (305) | 9-speed (11–28T) | Disc brakes | Aluminium alloy; DelTec frame tension cable; telescopic, inward-folding handlepost | 9.8 kg (Dahon official) | — | Riders with hills on their route who want steadier braking in the rain while keeping a compact 16" bike |
| Dahon K9x 16inch(305) Folding Bike - Japan Version | 16" (305) | 9-speed (Shimano HG400 cassette, 11–28T) | Tektro mechanical (cable) disc brakes | Aluminium alloy; internal cable routing; DelTec frame tension cable; one-piece inward-folding handlepost (fixed height) | 9.5 kg (Dahon official); 10.18 kg (Jollymap review article) | 72 × 39 × 62 cm | Riders who like the clean internally routed look, are happy with a fixed-height handlepost and want MKS one-sided quick-release pedals as standard |
| Dahon K3 Plus 349 16 inch Folding Bike - KAA693 | 16" (349) | 9-speed | Disc brakes | Aluminium alloy; DelTec frame tension cable; telescopic, inward-folding handlepost | 10.44 kg (Dahon official) | 72 × 39 × 63 cm | Riders who want 349 wheels from the factory instead of upgrading the wheelset themselves |
| Dahon K3 Plus 16 inch(349) Folding Bike(KAA693) Flat Welding Version (this page) | 16" (349) | 9-speed | Disc brakes | Flat-welded aluminium alloy frame (smoother-looking joints); DelTec frame tension cable; telescopic, inward-folding handlepost | 10.44 kg (Dahon official) | 72 × 39 × 63 cm | Riders who want 349 wheels and prefer the smoother look of a flat-welded frame |
| Dahon K9 16 inch 349 Folding Bike with Deltec Cable (KAA693) - International version | 16" (349) | 9-speed (Dahon custom) | Disc brakes | Aluminium alloy; DelTec frame tension cable; height-adjustable handlepost | 10.4 kg (Dahon official) | 72 × 40 × 61 cm | Speed-minded riders who want 349 wheels on a DelTec-cable frame |
| Dahon K9 16 inch 349 folding bike (KAA693) - Hong Kong Edition | 16" (349) | 9-speed Shimano Sora (shifter and rear derailleur, 11–32T) | Tektro hydraulic disc brakes | Aluminium alloy; flat-welded frame and DelTec cable (retailer and Jollymap product data) | 10.57 kg (Dahon official) | — | Riders who often ride up and down hills and want Shimano Sora shifting with hydraulic disc brakes |
Comparison data: Dahon Hong Kong product pages for each model and Jollymap articles.
Jollymap's advice
The Flat Welding Version and the standard K3 Plus 349 share the same official specs, so you can choose by colour and finish; if you often carry the bike up stairs, the lighter 305 version may suit you better. For a kickstand, we stock the Mr TiParts Aluminum Kickstand for Dahon K3 Plus (with a 349 size option) and the Ridea Dahon Kickstand PLSKSK3P (listed as fitting all K3 Plus models and 349 wheels). Not sure which model suits your height, route and storage space? Please chat with us or message our Facebook page before ordering.
Specifications
| Dahon K3 Plus 349 Flat Welding Version (KAA693) | |
|---|---|
| Brand | Dahon |
| Model | KAA693 |
| Wheel size | 16 inch, 349 wheelset |
| Drivetrain | 9-speed, disc brakes |
| Frame | Aluminium, flat-welded, Deltec frame cable |
| Handlepost | Telescopic, in-folding |
| Weight | About 10.44 kg |
| Folded size | 72 x 39 x 63 cm (L x W x H) |
| Maximum load | About 100 kg |
| Colours | Grey, Black, Green |
| Kickstand | Not included |
Specification source: Dahon Hong Kong K3 PLUS 349 (KAA693) Flat Welding Version product page; flat-welding description from Jollymap's article 314.
*Measurements may vary slightly because of different measuring tools.
*Components and parts may vary between production batches. Enquiries are welcome.
FAQ
What is the difference between the K3 Plus 349 Flat Welding Version and the standard 349 version?
The official specs are the same; the only sourced difference is the frame. Both Dahon Hong Kong 349 pages list 349 wheels, 9-speed disc brakes, about 10.44 kg, 72 x 39 x 63 cm and about 100 kg load; the Flat Welding Version uses a flat-welded frame, which Jollymap's article 314 says looks smoother. The colours also differ: this version comes in Grey, Black and Green.
What is the maximum load of the Dahon K3 Plus 349 Flat Welding Version?
About 100 kg, as listed on Dahon Hong Kong's Flat Welding Version page. The 305 version is also 100 kg, while the 14-inch K3 is 75 kg.
How much does the Dahon K3 Plus 349 Flat Welding Version weigh?
About 10.44 kg, according to Dahon Hong Kong's product description, around 0.6 kg more than the 9.8 kg K3 Plus 305.
What is the difference between the K3 Plus 305 and 349?
Mainly the wheel size. Both use the KAA693 frame and 9-speed disc brakes, but the 349 version has larger 349 wheels (ISO rim diameter 349 mm versus 305 mm). Dahon lists the 349 version at about 10.44 kg and the K3 Plus 305 at 9.8 kg.
What is the difference between the K3 Plus and the Mini 349?
The Mini 349 is Dahon's 40th anniversary special edition, also with 349 wheels, with graffiti graphics and a 40th anniversary logo on the frame and rear triangle (Jollymap article 204). According to the family comparison in Jollymap's article 295, the Mini 349 has no Deltec cable, while the K3 Plus 349 Flat Welding Version does.
What is the difference between the Dahon K3 and the K3 Plus?
The Dahon K3 uses 14-inch wheels and 3 speeds, weighs 7.9 kg without pedals and takes up to 75 kg; the K3 Plus 349 Flat Welding Version uses 16-inch 349 wheels and 9-speed disc brakes, weighs about 10.44 kg and takes about 100 kg. The K3 is lighter and smaller; the K3 Plus is better for hills and longer rides.
Does the K3 Plus 349 Flat Welding Version come with a kickstand?
No. Dahon Hong Kong states that a kickstand is not included. We stock the Mr TiParts Aluminum Kickstand for Dahon K3 Plus (with a 349 size option) and the Ridea Dahon Kickstand PLSKSK3P; please contact us before ordering to confirm.
Can I take the K3 Plus 349 Flat Welding Version on the MTR?
By the official folded size, it is slightly over the MTR limit. MTR rules say the length, width and height of luggage must not add up to more than 170 cm, and this bike folds to 72 x 39 x 63 cm, about 174 cm in total. On franchised buses, Regulation 14 of the Public Bus Services Regulations (Cap. 230A) only allows free carriage of items up to 5 kg and 0.1 cubic metres, which a folding bike usually exceeds; minibuses also make no guarantee.
Specifications and components follow the manufacturer's latest release and may change without notice. If in doubt, please contact us to confirm before ordering.
Last updated: October 2026
