Aceoffix C5 16inch 349 7 speed Carbon Fork Folding Bike - Chrome

The Aceoffix C5 16-inch 349 7-speed Carbon Fork Folding Bike in Chrome is an ultralight tri-fold bike with a polished silver main frame: a 6069 T6 aluminium frame, a T800 carbon fork and a quoted weight of 7.5 kg without pedals and front carrier block. The Chrome frame has a bare-metal shine set off by a black rear triangle, and it has a Brompton-style fold with the same 74 mm front / 112 mm rear spacing as a Brompton, so it suits commuters who like a metallic look and fold the bike every day.

Key Facts

• Category: ultralight tri-fold folding bike (adult, 16-inch / 349 wheels), 7-speed
• Brand: Aceoffix (Chinese brand focused on aluminium trifold bikes)
• This page's colour: Chrome (polished silver) main frame; besides the original version, Gold, Red, Purple, Silver, Blue, Orange or Pink accent options
• Frame / fork: 6069 T6 aluminium frame and rear triangle, T800 carbon fork, threadless headset
• Gears / brakes: 7-speed derailleur; front and rear rim brakes (caliper)
• Weight: 7.5 kg without pedals and front carrier block (Aceoffix figure, about 2% tolerance)
• Rider height: 140–185 cm
• Best for: riders who like a bare-metal look, fold and carry the bike up stairs every day, and have a few short climbs on their commute

The Problem It Solves

Trifolds pack away neatly, but a steel Brompton weighs about 11.2 kg, which wears you down on stairs every day, and a titanium T-Line is light but expensive. The C5 combines a 6069 aluminium frame with a carbon fork, a carbon handlebar and light parts for a weight of 7.5 kg (without pedals and carrier block). The 7-speed version adds two gears over the 5-speed C5, so flyovers and MTR exit ramps are easier, while the Chrome frame keeps a metallic finish that looks different from a painted frame.

Who It Suits

• Good fit: riders 140–185 cm tall who fold every day or carry the bike up and down stairs; anyone who wants a Brompton-style fold and Brompton-compatible accessories; fans of a polished metal look.
• Want another frame colour: the same 7-speed is also listed as the Aceoffix C5 7 speed Carbon Fork Folding Bike - Matt Grey and the Aceoffix C5 7 speed Carbon Fork Folding Bike - Purple, with the same specification.
• Flat routes, simpler gearing: the 5-speed Aceoffix C5 16inch 349 5 speed Carbon Fork Folding Bike is enough.
• Maybe not: riders who often ride in the rain, value braking power or want more gears. The C5 uses rim brakes; the 10-speed, full hydraulic disc Aceoffix D10 18inch 355 10 speed Carbon Fork Folding Bike is a better match.

Key Features

Chrome main frame with a black rear triangle

This page is the Chrome (polished silver) version of the C5 7-speed: the main frame has a metallic shine, while the rear triangle and cranks are black. Besides the original version, Jollymap offers the Chrome frame with Gold, Red, Purple, Silver, Blue, Orange or Pink accents. Exactly which parts are coloured may vary slightly by batch, so contact us before ordering if it matters to you.

6069 aluminium frame: larger tubes, 2.5 mm walls and steel sleeves

Aceoffix calls this carbon fork version a full upgrade over the previous generation. The head tube and rear triangle use 6069 T6 aluminium, 20–40% harder than common 6061 alloy, with better fatigue resistance and fracture toughness. For stiffness the main tube is about 16.5 cm in circumference with 2.5 mm walls (typical frames use about 1.6 mm), and steel sleeves reinforce the tubes at the folding points.

T800 carbon fork with a threadless front end

The fork is T800 carbon with a threadless head structure; Aceoffix says that combined with the large-diameter fork this raises strength by 60%. The specially designed pivot keeps folding smooth and helps control vibration when riding. The headset is hidden, and when folded the stem locks back into the headset area.

Carbon mini M-bar, easy wheels and other light parts

The mini M-bar, fork and easy wheels are carbon; the seat clamp and hinge hardware are aluminium; the pedals are CNC single-side quick-release. Parts like these are how the C5 gets to 7.5 kg (without pedals and carrier block).

Replaceable hinge, Brompton spacing

The hinge is a separate component that can be replaced on its own if it wears. Front spacing of 74 mm and rear spacing of 112 mm match a Brompton, so many Brompton accessories fit.

Which Aceoffix Folding Bike Should You Choose?

Here is how the Aceoffix folding bikes compare (the C5 7-speed row is the same bike as this page, in a different frame colour):

Sources: product information published by Aceoffix dealers in Hong Kong and overseas, and Jollymap review articles. Aceoffix has no global official spec sheet. "—" means consistent public data is not available.

Choose by what matters to you:

• Same 7-speed, another frame colour: Aceoffix C5 7 speed Carbon Fork Folding Bike - Matt Grey or Aceoffix C5 7 speed Carbon Fork Folding Bike - Purple.
• Mostly flat riding: Aceoffix C5 16inch 349 5 speed Carbon Fork Folding Bike, with the same 6069 aluminium frame and carbon fork and 5 speeds.
• Riding in the rain, want disc brakes: Aceoffix D10 18inch 355 10 speed Carbon Fork Folding Bike, with 18-inch 355 wheels, 10 speeds and full hydraulic disc brakes.
• First trifold on a budget: Aceoffix Y5 16inch 349 5 speed Folding Bike, Aceoffix's entry-level range.
• Upgraded components: Aceoffix S5 16inch 349 5 speed Folding Bike, Aceoffix's upgraded-spec range.

Further reading (in Chinese): Jollymap's Aceoffix C5 lightweight aluminium folding bike breakdown and Aceoffix D10 18-inch trifold review.

Jollymap's Advice

The C5 shares Brompton spacing, so the 16-inch bike can take the Aceoffix Rack with Easy Wheel for 16 inch, and worn easy wheels can be replaced with the Aceoffix Easy Wheel (pair); the Aceoffix D10 rear rack with easy wheels for 18 inch is for the 18-inch D10. Other Aceoffix replacement parts include the Aceoffix Brake Calipers, Aceoffix Folding Mount, Aceoffix Hinge clamps, Aceoffix Seat Clamps, Aceoffix Chain Tensioner and Aceoffix Aluminium Risen Handlebar (fits Brompton). Fit, and whether a colour suits the Chrome frame, can vary slightly between production batches, so please contact us before ordering: chat with us or message our Facebook page with your bike's colour, a photo and your height.

Product Information

Brand	Aceoffix
Handlebar type	Carbon handlebar
Applicable scenario	Commuting
Gear system	7-speed
Folding mechanism	Triple folding
Pedal type	CNC one-sided quick-release pedals
Frame material	Aluminium alloy (head tube and rear triangle 6069 T6)
Fork material	Carbon fiber T800
Rim material	Aluminium alloy
Rim size	16 inches (349, for short-distance riding)
Spacing	Front 74 mm, rear 112 mm
Weight	7.5 kg (without pedals and front carrier block, about 2% tolerance)
Suitable rider height	140–185 cm
Applicable gender	Unisex
Brake type	Front and rear rim brakes (caliper)
Colour (this page)	Chrome (original), plus Chrome with Gold, Red, Purple, Silver, Blue, Orange or Pink accents

Specifications source: Aceoffix product information, Hong Kong dealer information and Jollymap review articles. Product images are for reference purposes only. Actual product specifications and colors may vary between production batches. Please contact us for detailed information.

FAQ

What does the Chrome Aceoffix C5 7-speed weigh?

7.5 kg according to Aceoffix, without pedals and front carrier block, with about 2% tolerance; every frame colour has the same specification. For reference, Jollymap weighed the 5-speed C5 at 8.15 kg with pedals and carrier block; we have no measured figure for the 7-speed yet.

What does the C5 7-speed add over the 5-speed?

Two extra gears, so you have more ratios on climbs. Otherwise both use 16-inch 349 wheels, a 6069 aluminium frame, a carbon fork and front and rear rim brakes, and Aceoffix quotes 7.5 kg for both. For flat routes, consider the Aceoffix C5 16inch 349 5 speed Carbon Fork Folding Bike.

How do I choose between the Aceoffix C5 and D10?

Pick the C5 if low weight matters most and your routes are mostly flat or short climbs; pick the D10 if you often ride in the rain and want disc brakes and more gears. The C5 uses front and rear rim brakes, not discs; the D10 has 18-inch 355 wheels, 10 speeds and full hydraulic disc brakes at about 8.5 kg. See the Aceoffix D10 18inch 355 10 speed Carbon Fork Folding Bike.

How do the Aceoffix C5, S5 and Y5 differ?

They are all Aceoffix aluminium trifolds with different aims: the Y5 targets entry-level riders, the S5 focuses on upgraded components, and the C5 focuses on low weight with a 6069 aluminium frame and carbon fork. The Aceoffix Y5 16inch 349 5 speed Folding Bike and Aceoffix S5 16inch 349 5 speed Folding Bike at Jollymap are both 16-inch 349, 5-speed bikes.

How tall should I be to ride the Aceoffix C5?

Between 140 and 185 cm; it suits men and women alike.

Can I use Brompton accessories on the Aceoffix C5?

Many Brompton accessories fit. The C5 folds in a similar way to a Brompton, and its 74 mm front and 112 mm rear spacing are the same. Individual parts may still vary by production batch, so contact us before ordering.

Where is Aceoffix from?

Aceoffix is a Chinese brand with Y5, S5 and C5 aluminium trifold ranges; the C5 is the range's lightweight model.

How is the Chrome C5 different from the Matt Grey and Purple versions?

Only the frame colour differs; the specification is the same. The Chrome frame on this page comes in 8 combinations: the original version, plus Gold, Red, Purple, Silver, Blue, Orange or Pink accents. The Matt Grey and Purple frames each have their own product page.

Where can I buy the Chrome Aceoffix C5 7-speed in Hong Kong?

Jollymap sells it online and in our shop. Chat with us if you'd like to confirm the accent colour or accessories first.

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