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Premium 20” Trifold Built for Singapore Commuting The Ethereal Trifold A20 is a performance-focused 20-inch trifold folding bicycle engineered for urban riders who want compact portability without compromising ride stability. With a lightweight T6 aluminium frame, Shimano Tiagra 10-speed drivetrain and full hydraulic disc brakes, it’s designed for fast commutes,...
The Ethereal Trifold A20 is a performance-focused 20-inch trifold folding bicycle engineered for urban riders who want compact portability without compromising ride stability. With a lightweight T6 aluminium frame, Shimano Tiagra 10-speed drivetrain and full hydraulic disc brakes, it’s designed for fast commutes, weekend rides and long-term ownership in Singapore.
The Ethereal Trifold A20 features a true ultra-compact trifold design that minimizes footprint without sacrificing stability. When folded, it fits easily into MRT spaces, car boots, lifts and HDB storage areas, making it ideal for urban commuting in Singapore.
Designed for real-world commuting, the A20 allows you to push and roll the bike smoothly when folded, reducing the need to carry its full weight. The stable rolling geometry makes station transfers, walkways and indoor movement effortless.
The Easywheel Extender increases the rolling base width, improving stability when the bike is folded and pushed. It also helps keep the bike upright when parked, preventing tip-overs and enhancing convenience in public spaces.
Built with a T6-grade aluminium alloy frame and fork, the A20 balances lightweight construction with structural strength. Precision welding enhances durability while the anti-rust properties suit Singapore’s humid climate. Backed by a lifetime frame warranty for long-term confidence.
The integrated rear suspension block helps absorb vibrations from uneven roads, improving comfort during daily commutes. It reduces harsh impacts from bumps and rough surfaces for a smoother, more controlled ride.
Equipped with Shimano MT200 full hydraulic disc brakes, the A20 delivers confident and consistent braking. Hydraulic braking helps maintain reliable stopping power in wet weather and high humidity, supporting safer commuting in Singapore.
The quad sealed bearing hub is designed for smooth, low-resistance rolling and improved protection against dust and water ingress. This supports durability, efficiency and lower maintenance over time.
The Shimano Tiagra 10-speed shifter delivers precise and responsive gear changes, helping riders adapt quickly to changing speed and road conditions. Designed for performance-oriented cycling, it supports dependable shifting for commuting and longer rides.
Paired with the Tiagra shifter, the rear derailleur supports accurate gear alignment and stable shifting under load. This results in smoother cadence transitions, improved efficiency and consistent performance across flats and flyovers.
The Litepro Hollowtech crankset provides a lightweight yet stiff structure for efficient power transfer. Combined with a 56T chainring, it supports faster cruising and responsive acceleration on a 20-inch trifold folding bike.
The front aluminium block adapter provides a high-strength mounting point for compatible front carriers and accessories such as bags, pouches or lights. This expands versatility for commuting, errands and daily carry needs.
Foldable aluminium pedals allow the bike to reduce its footprint further when folded, improving clearance and portability. The aluminium alloy construction supports durability for regular commuting and frequent folding.
Yes. A 20-inch trifold folding bike offers a strong balance between portability and ride stability. Compared to smaller wheel sizes, 20-inch wheels roll more smoothly and feel steadier on longer routes, while still folding compactly for MRT, lifts and storage.
The A20 folds to approximately 71cm (L) × 34cm (W) × 68cm (H). This compact folded profile is designed for convenient storage at home and practical transport during daily commuting.
The A20 uses a Shimano Tiagra 10-speed drivetrain for precise shifting, a Litepro Hollowtech crankset for efficient power transfer, and Shimano MT200 full hydraulic disc brakes for consistent control in varied conditions. These components are chosen for riders who want confident handling and long-term reliability.
The Ethereal Trifold A20 uses a compact trifold concept suited for urban commuting and storage. The ride experience differs because the A20 runs 20-inch wheels for improved stability and smoother rolling, along with a performance-focused setup such as Shimano Tiagra 10-speed and full hydraulic disc brakes.
Note: “Brompton” is a trademark of its respective owner. Ethereal is not affiliated with or endorsed by Brompton.
The A20 comes with lifetime frame warranty and 12 months parts warranty. When purchased from The Bike Atrium, it also includes free lifetime general servicing, providing long-term peace of mind and dedicated local after-sales support in Singapore.
The A20 is designed to fold compactly for urban transport. Always ensure the bike is fully folded and carried considerately, especially during peak hours, and follow current MRT guidelines for folded bicycles.
The Ethereal Trifold A20 is designed to accommodate a wide range of riders in Singapore. The recommended rider height range is 135cm to 185cm using the adjustable seatpost. For riders above 185cm, we can replace the seatpost with a longer option to ensure proper leg extension and riding comfort.
The maximum load rating is up to 130kg (including rider and carried items). If you are above this weight, we recommend contacting The Bike Atrium for a fit and safety assessment before purchase.
Yes. The Ethereal Trifold A20 can be configured as a family-friendly commuting bike with compatible child seat options. Depending on your child’s age and seating requirements, we offer different child seat designs, including models with integrated seat belts for added security.
The A20 can support the installation of up to two child seats in a dual-child setup, subject to suitable child seat selection, correct installation, and safety checks performed by The Bike Atrium in Singapore.
New to folding bikes or need a quick refresher? Watch our step-by-step folding guide for the Ethereal Trifold A20 to learn how to fold and unfold the bike easily.
▶ Watch the Ethereal A20 Trifold Folding Tutorial on YouTube
| Component | Details |
|---|---|
| Derailleur & Shifter | Shimano Tiagra (Made in Japan) |
| Cassette | Sunshine 11T - 32T (11-13-15-17-19-21-23-25-28-32T) |
| Crankset | Litepro Hollowtech Crankset - 56T Chainring |
| Chain | 10 Speed Chain |
| Brakes | Shimano MT200 Full Hydraulic Disc Brakes |
| Tyres | 20" 406 X 1.5 CST Tanwall |
| Wheelset | Quad Bearing Loud Hub |
| Saddle | Ergonomic Cushion Saddle |
| Pedal | Foldable Alu-alloy Pedals |
| Seatpost | Litepro Anti-Slip |
| Handlepost | T6 Grade Aluminium Alloy - Fixed Height |
| Handlebar | Litepro Aluminum Alloy Curved-Bar |
| Frame | T6 Grade Aluminium Alloy |
| Fork | T6 Grade Aluminium Alloy |
| Weight | Approx. 10.8KG w/o pedals & add-ons |
| Max Load | Approx. 130KG |
| Dimension | 158CM [Length] X 65CM [Width] X 114CM [Max Height] |
| Folded Dimension | 71CM [Length] X 34CM [Width] X 68CM [Height] |
| Warranty | Frame - Lifetime | Parts - 12 Months |
| General Servicing | Free for Lifetime |
