Dahon MU SL D9 (PAA693) 9 speed folding Bike

The Dahon MU SL D9 (PAA693) is the 16-inch aluminium folding bike in Dahon's MU range, built on the streamlined "dolphin" frame with a Dahon custom 9-speed drivetrain. Dahon lists it at 9.88 kg with a 100 kg weight limit. It folds to 75 × 35 × 62 cm (L × W × H), so it suits riders who want a 16" folder under 10 kg with enough gears for everyday roads.

Key Facts

• Category: 16-inch folding bike, 9-speed, V-brakes
• Brand: Dahon (founded in the USA in 1982, now mainly manufacturing in Shenzhen), MU "dolphin frame" series; model code PAA693 on Dahon Hong Kong's site
• Highlights: streamlined dolphin-style aluminium frame; Dahon custom 9-speed; under 10 kg
• Key numbers: 9.88 kg; 100 kg weight limit; folded 75 × 35 × 62 cm (L × W × H)
• Best for: riders who want a small fold and 9 gears for city streets and cycle tracks; for disc brakes or 349 wheels, see the MU P9 349 in the same range

What Problem Does It Solve?

Many people want a folding bike because space at home and in the lift is tight, but worry that a 16" bike will not have enough gears for Hong Kong's hills. The MU SL D9 puts a Dahon custom 9-speed drivetrain on a 16" frame, folds to 75 × 35 × 62 cm and weighs 9.88 kg. Jollymap's 2026 Dahon buying guide describes it as "the lightweight 16-inch version of the classic dolphin frame", balancing looks and portability.

Who Is It For?

• Riders short of space: 16" wheels and a folded size of 75 × 35 × 62 cm make it easy to keep in a corner at home or in a car boot.
• Commuters and leisure riders who want gears: 9 speeds give far more choice than a single-speed or 3-speed folder.
• Riders who care about looks: the MU series is known for its streamlined dolphin-style aluminium frame (Jollymap's 2026 Dahon buying guide), offered here in blue, white and pink.
• Maybe not for: riders who want disc brakes or larger 349 wheels, who should look at the Dahon MU P9 (PAA693) 9 Speed 16 inch 349 folding bike; riders over 100 kg (Dahon's stated weight limit).

Streamlined dolphin-style aluminium frame

The MU series is known for its signature streamlined "dolphin" aluminium frame (Jollymap's 2026 Dahon buying guide). The SL D9 is the 16-inch version, with an aluminium frame and an official weight of 9.88 kg.

Dahon custom 9-speed

Dahon Hong Kong lists the drivetrain as "DAHON custom 9-speed". On a 16" folding bike, 9 gears make it easier to find a comfortable cadence when accelerating on the flat or climbing.

V-brakes

Hong Kong retailer specifications list the MU SL D9 with Dahon V-brakes (Dahon Hong Kong's product page does not state the brake type). If you often ride in the rain or down long hills and want disc brakes, the MU P9 349 uses Tektro hydraulic disc brakes.

Folded size and public transport

The official folded size is 75 × 35 × 62 cm, about 172 cm in total. MTR rules limit luggage to a combined length, width and height of 170 cm, so on official figures it is slightly over the limit. On franchised buses, the Public Bus Services Regulations (Cap. 230A, section 14) only allow free carriage of items up to 5 kg and 0.1 cubic metres, which a folding bike generally exceeds; minibuses are not guaranteed either.

How to Choose a Dahon MU Model

This page is the 16" SL D9 in the Dahon MU series. Compared with the other models:

• Want 349 wheels and hydraulic disc brakes: the Dahon MU P9 (PAA693) 9 Speed 16 inch 349 folding bike is also 16" and 9-speed, but uses 349 wheels, Tektro hydraulic disc brakes and a DelTec-cable frame; Dahon lists it at about 11.1 kg. Dahon Hong Kong uses PAA693 as the model code for both bikes.
• Want 20" wheels and disc brakes: the Dahon MU P10 20 inch 10 Speeds Folding Bike - PAA003 is 20", 10-speed with hydraulic disc brakes, 11.9 kg with pedals (Dahon official).
• Want 20" wheels and 11 speeds: the Dahon MU LX 20inch Folding Bike PKA015 is 20", 11-speed with Dahon V-brakes, about 9.55 kg, folding to 81 × 38 × 65 cm.

The table below compares wheel size, gearing, brakes, frame, weight and folded size across the four Dahon MU models in our shop. For the full Dahon line-up, read Jollymap's 2026 Ultimate DAHON Folding Bike Collection.

Comparison data: Dahon Hong Kong official product pages, Hong Kong retailer specifications and Jollymap specifications.

Jollymap Recommendation

If a small fold and a bike under 10 kg matter most, and you mainly ride in town and on cycle tracks, the MU SL D9 is the lighter 16" choice in the MU series. If your route has more hills or you often ride in the rain, consider the MU P9 349 with hydraulic disc brakes. Not sure which suits your height, route and storage space? Chat with us before ordering, or message our Facebook page.

Specifications

Dahon MU SL D9 (PAA693)
Brand	Dahon
Model	PAA693
Wheel size	16" (16 x 1.75 tyres, Jollymap spec)
Drivetrain	Dahon custom 9-speed
Brakes	V-brakes (Hong Kong retailer spec)
Frame	Aluminium alloy
Weight	9.88 kg
Weight limit	100 kg
Folded size	75 × 35 × 62 cm (L × W × H)
Crank length	170 mm (Jollymap spec)
Handlebar width	600 mm (Jollymap spec)
Seat height	75–100 cm (Jollymap spec)
Rider height	145–190 cm (Jollymap spec)
Kickstand	Included (Jollymap spec)
Colours	Blue, White, Pink

Specification source: Dahon Hong Kong official product page (dahon.com.hk); items marked "Jollymap spec" come from Jollymap product data, and items marked "Hong Kong retailer spec" come from a Hong Kong retailer's product page. Measurements may vary slightly because of different measuring tools; components and parts may vary between production batches, and enquiries are welcome. Pictures are for reference only; the actual product shall prevail.

*Customers require to self-assemble the bike

FAQ

How much does the Dahon MU SL D9 weigh?

9.88 kg, according to Dahon Hong Kong. The official weight limit is 100 kg and the folded size is 75 × 35 × 62 cm (L × W × H).

What is the difference between the Dahon MU SL D9 and the MU P9 349?

The main differences are wheels, brakes and weight. Both are 16", 9-speed MU folding bikes; the MU P9 349 officially uses 349 wheels, Tektro hydraulic disc brakes, a flat-welded aluminium disc-brake frame and a DelTec cable, at about 11.1 kg. The MU SL D9 uses V-brakes, weighs 9.88 kg (official) and has a published folded size of 75 × 35 × 62 cm.

Why do the MU SL D9 and MU P9 both say PAA693?

Because Dahon Hong Kong uses PAA693 as the model code for both bikes. Tell them apart by model name: the SL D9 is the V-brake version, and the P9 349 is the one Dahon labels "Disc Brake Version" with 349 wheels.

Does the Dahon MU SL D9 have disc brakes or V-brakes?

V-brakes. Hong Kong retailer specifications list Dahon V-brakes; Dahon Hong Kong's SL D9 page does not state the brake type. For disc brakes, the MU P9 349 in the same range uses Tektro hydraulic disc brakes.

Should I choose a 16-inch or a 20-inch folding bike?

Choose 16" if a small fold matters most, or a 20" model in the same range if you want bigger wheels. On Dahon's official MU figures, the 16" SL D9 folds to 75 × 35 × 62 cm at 9.88 kg; the 20" MU LX folds to 81 × 38 × 65 cm at about 9.55 kg; the 20" MU P10 is 11.9 kg with pedals.

What rider height does the Dahon MU SL D9 fit?

About 145–190 cm according to Jollymap specifications, with a seat height of 75–100 cm. Dahon Hong Kong does not publish a recommended height; if you are near either end of the range, contact us to confirm before ordering.

Can I take the Dahon MU SL D9 on the MTR?

On official folded dimensions it is slightly over the MTR limit. MTR luggage must not exceed 170 cm in combined length, width and height; this bike folds to 75 × 35 × 62 cm, about 172 cm in total. Franchised buses generally restrict items over 5 kg or 0.1 cubic metres (Cap. 230A, section 14), and minibuses are not guaranteed.

What colours does the Dahon MU SL D9 come in?

Blue, white and pink on this page, matching the colours listed by Dahon Hong Kong. To check the actual shade before ordering, chat with us.

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