Tworby

What Tworby does

Tworby B.V. is a Dutch mobility hardware company founded in 2019 and headquartered in Nijmegen, Netherlands. The company designs and sells a patented balance module that converts an existing two-wheeled bicycle — including electric bikes — into a stable high three-wheel tricycle by replacing the rear wheel with a dual-wheel balance system, with no frame welding or cutting required. The product portfolio consists of two variants: the Tworby Balans (maximum fixed stability, priced from €2,199 incl. 9% VAT in the Netherlands) and the Tworby Flex (dynamic adaptive support with medical certification, priced from €3,699 incl. 9% VAT). A complementary USVA-developed bike carrier (€1,537) is sold as an accessory.

Tworby earns revenue primarily through one-time hardware sales of the balance module, distributed exclusively through an authorized dealer network of over 130 certified bicycle specialists in the Netherlands and Belgium. Professional installation (2–3 hours, capped at €350) is performed by dealers, who also serve as the local trial-ride and service point. Additional revenue comes from dealer-mounted accessories, member-association cashback channels (€175 rebates via 10+ partner associations), and direct sales to Dutch municipalities through WMO (Wet maatschappelijke ondersteuning) reimbursement pathways enabled by the product's Class I medical device CE marking under EU MDR 2017/745/EU.

The company's target customers are seniors with declining balance, individuals with neurological conditions (Parkinson's, MS, non-congenital brain injury), stroke recovery patients, and adults with physical disabilities — i.e., a niche but mission-driven mobility segment. The company positions itself as a cost-effective alternative (up to 4x cheaper) to full adapted tricycles while preserving the user's existing bicycle investment. Total disclosed funding is approximately €500,000 (Rabo Foundation 2019, IGNITE Award 2020 €100K, Dragons' Den 2022 €400K from Orange Wings for 25% equity, implying a €1.6M post-money valuation). The company operates with a 1-10 person team.

Name

Tworby

Legal name

Tworby B.V.

Website

https://tworby.nl

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Tworby is a Dutch hardware company that converts existing bicycles into stable tricycles via a patented balance module, sold through certified dealers to seniors and people with neurological conditions seeking safer, independent mobility.

Ownership category

akta.pro rank

Product category

Adaptive Cycling Equipment

NAICS

Motorcycle, Bicycle, and Parts Manufacturing (336991)

SIC

Motorcycles, Bicycles & Parts (3751)

akta.pro primary industry

Bike Parts & Components Retail (CRAMAHAB)

akta.pro secondary industries

Cycling & Bike Retail (Sales, Service & Accessories) (CRAMABAH), Bike Service, Repair & Maintenance Shops (CRAMAHAH)

Keywords

• Adaptive cycling equipment
• Tricycle conversion kit
• Balance mobility device
• Adaptive bike module
• Medical cycling aid

Headquarters

HQ city

Nijmegen

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Marketing or Sales, Personnel, Operations, Technology or R&D

Revenue model

1. Tworby Balans module sales: One-time sale of the balance module conversion kit. The product is installed by certified bicycle dealers who also charge separate mounting fees. Prices start from €2,199 in Netherlands (9% VAT) and €2,440 in Belgium (21% VAT).
2. Tworby Flex module sales: One-time sale of the Flex balance module with adjustable support. Higher price point starting from €3,699 in Netherlands (9% VAT) and €4,105 in Belgium (21% VAT).
3. Professional mounting services: Dealers charge mounting fees for professional installation of the balance module. Standard assembly takes approximately 3 hours for a standard bicycle, with costs never exceeding €350. The company indicates approximately 2 hours average mounting time depending on bike model.
4. Accessories (Tworby bike carrier): Specialized bike carrier developed with partner USVA for transporting the converted tricycle. Price of €1,537 including VAT (€1,587 in some sources), with €50 delivery charge within Netherlands.
5. Member discounts and cashback: Partnership with member associations providing €175 cashback to members of affiliated organizations, creating a loyalty/referral revenue mechanism.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

Tworby develops and sells a balance module that converts existing two-wheel bicycles (including e-bikes) into stable three-wheeled tricycles. The portfolio includes two core variants: Tworby Balans (maximum fixed stability for users seeking full support) and Tworby Flex (dynamic, medically-certified support that moves naturally with the rider), plus a dedicated USVA-partnered bike carrier accessory. All modules are professionally installed exclusively through a network of 130+ certified bicycle dealers in the Netherlands and Belgium.

Product overview

Tworby is a Dutch mobility company that sells a balance-module conversion system enabling users to transform their existing two-wheel bicycles (including electric bikes) into stable tricycles. The product portfolio consists of two core module variants — the Tworby Balans (maximum fixed stability) and the Tworby Flex (dynamic stability with natural riding feel) — plus a dedicated bike carrier accessory developed with partner USVA. All modules are professionally installed exclusively through authorized dealer partners, with the company headquartered in Nijmegen, the Netherlands. Pricing starts at €2,199 incl. VAT in the Netherlands for the Balans model, with the Flex starting at €3,699 incl. VAT. Tworby holds CE marking as a Class I medical device.

Differentiator

Problem solved

Functional benefit

Brands

• Tworby Balans: The Tworby Balans offers maximum stability and is designed for users who seek certainty and full support during every ride. It replaces the rear wheel with a balance module featuring two wheels, providing a stable tricycle base.
• Tworby Flex

Products and services

• Tworby Balans

Quantifiable outcome

• Up to 4x cost savings compared to purchasing a complete tricycle
• +3 more outcomes

Named customers6 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• HastigcoreStrategic or Co-development Partner · 1 June 2021Research organization focused on traffic safety that analyzes risks to prevent accidents. Part of the 'Blijf Fietsen' (Keep Cycling) project providing 20 Tworby units to selected participants in collaboration with various organizations.
• Parkinson VerenigingminorGTM or Marketing Partner · 1 June 2021Proud sponsor of the Parkinson's Association. Together working to keep people with Parkinson's and Parkinsonisms mobile and independent. Sponsorship supports association activities while building awareness among target customer segment.
• KingpolisminorChannel Partner/ Reseller/ DistributorInsurance partner offering insurance products for the Tworby, including theft insurance and casco coverage for damage to the bicycle.
• IMC-ConsultantsminorImplementation/ SI/ Consulting PartnerConsultancy that guided Tworby through the CE-marking certification process for medical devices, particularly with consultant Wankie Be.
• MaakwerkminorStrategic or Co-development PartnerManufacturing partner that performs assembly of Tworby units by people with a distance to the labor market (arbeidsmatige的人群). Supports social entrepreneurship and employment inclusion goals.
• HersenstichtingminorGTM or Marketing PartnerBrain Foundation collaborating on the 'Blijf Fietsen' project to provide Tworby units to selected participants and gather impact data.
• Edwin van der Sar FoundationminorGTM or Marketing PartnerFoundation collaborating on the 'Blijf Fietsen' project for brain injury survivors.
• ANBO-PCOBminorGTM or Marketing PartnerNational senior association partnering on the 'Blijf Fietsen' project and offering member cashback benefits.
• Member Associations NetworkminorChannel Partner/ Reseller/ DistributorNetwork of 10 partner associations offering €175 cashback to members: ActiVite, ANBO-PCOB, CareynPlus, Envida Ledenservice, Kruiswerk, LKGX, OKRA, Pantein Extra, Vivent, and Zuid&Zo. These represent senior organizations and care providers across Netherlands.

Scale indicators7 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Nihola: Nihola is a Danish manufacturer of adaptive and family tricycles for adults with mobility challenges, distributing across Northern Europe. It targets the same senior and disability use cases Tworby serves and is comparable as a specialized adaptive-cycle brand seeking European scale.
• Van Raam: Van Raam is a Dutch manufacturer of adaptive bicycles, including tricycles, that serves the same senior and disability mobility segments as Tworby. Although Van Raam sells complete purpose-built tricycles rather than retrofit modules, both companies compete for the same end customer, the same dealer base (Dutch bike specialists), and the same WMO reimbursement channel.
• HP Velotechnik: HP Velotechnik is a German manufacturer of recumbent tricycles and adaptive cycles with a long-standing presence in the European specialist bike market. While more focused on recumbent designs, it competes for the same adaptive cycling and senior mobility customer and dealer channel.
• Huka Bikes: Huka is a Dutch manufacturer of adaptive tricycles and special-needs bicycles serving the senior, rehabilitation, and disability markets. Like Tworby, Huka is sold through Dutch bicycle specialists and is commonly reimbursed under WMO, making it the closest direct competitor for both retail customers and reimbursement-funded buyers.
• PFAFF (Thera-Bike): PFAFF produces adaptive tricycles and special-needs bicycles in Germany for rehabilitation, disability, and senior mobility use cases. PFAFF competes for the same reimbursement-funded customer pool across the DACH region and represents a likely expansion competitor as Tworby seeks to grow beyond the Benelux.

Broad incumbents

• Koninklijke Gazelle: Gazelle is the largest Dutch bicycle manufacturer, with broad distribution through Dutch bike specialists. It overlaps with Tworby's dealer channel and end-customer demographic and represents a broad incumbent whose entry into adaptive retrofit could materially change the competitive landscape.
• Batavus: Batavus is one of the largest Dutch mainstream bicycle brands with a broad portfolio including e-bikes and senior-oriented models. It serves the same dealer network and overlaps with Tworby's customer base but does not currently offer a tricycle retrofit module, making it a potential incumbent entrant rather than a current head-to-head competitor.

Emerging players

• Sun Bicycles: Sun Bicycles is a US-based manufacturer specializing in adult recumbent and upright tricycles for senior and recreational riders. It addresses the same adult tricycle use case as Tworby but serves a different geography and uses complete vehicles rather than retrofit modules.
• Fun2Go (Van Raam) Duet Passenger: Van Raam's Fun2Go side-by-side tandem tricycle serves rehabilitation and senior mobility customers and is sold via the same Dutch dealer network and WMO reimbursement pathway as Tworby. It illustrates the breadth of adaptive tricycle solutions competing for the same end customer in the same channel.
• Taga Bikes: Taga designs family/cargo bikes and adaptive-style cycles that fold and reconfigure, targeting urban families and special-needs users. While not a direct tricycle-retrofit competitor, it represents an emerging European challenger exploring new configurations of adaptive and family cycling.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks3 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/www.tworby.nl
• LinkedInlinkedin.com/company/tworby

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tworby