Both STRINGBIKE (2016) and STRINGHANDBIKE (2019) focus on handbike attachments that extend the mobility range of wheelchair users through a push-pull string drive system.
STRINGBIKE KFT
Hungarian SME manufacturing a push-pull string-drive handbike attachment for wheelchair users, targeting rehabilitation, mobility, and adaptive recreation.
Their core work
STRINGBIKE KFT is a Hungarian SME that develops and commercializes an innovative push-pull string-driven handbike attachment designed for wheelchair users. Their core product converts a standard wheelchair into a hand-powered vehicle using a string transmission mechanism, enabling mobility, physical rehabilitation, and recreational use for people with disabilities including spinal cord injuries. The company progressed from a proof-of-concept feasibility study to a full commercialization project, indicating they manufacture or intend to manufacture a physical assistive device. Their work sits at the intersection of assistive technology, rehabilitation medicine, and adaptive sports equipment.
What they specialise in
STRINGHANDBIKE explicitly targets rehabilitation and therapy for people with spinal cord injuries, positioning the product as a clinical and therapeutic tool alongside its mobility function.
STRINGHANDBIKE includes recreation and leisure as application areas, extending the device's value proposition beyond medical use into quality-of-life improvement and sport.
The company executed the full SME Instrument pathway — Phase 1 feasibility (€50K) followed by Phase 2 market entry (€1.13M) — demonstrating experience navigating EU innovation funding for product launch.
How they've shifted over time
In their first project (2016–2017), the focus was narrowly on the handbike hardware concept itself — no enriched keywords were recorded, suggesting an early-stage feasibility study centered on the mechanical innovation. By 2019–2022, the framing had broadened significantly: the same core product was repositioned around disability inclusion, rehabilitation, spinal cord injury therapy, and quality of life, reflecting a shift from engineering proof-of-concept to market-ready health and assistive technology product. This evolution likely mirrors feedback from clinical partners or market validation that the strongest commercial case lay in rehabilitation and disability sectors rather than general cycling.
STRINGBIKE KFT is moving toward positioning their product within the healthcare and disability inclusion market, suggesting future collaborations are most likely in assistive technology, rehabilitation medicine, or adaptive sports — rather than general transport innovation.
How they like to work
STRINGBIKE KFT has acted exclusively as project coordinator across both H2020 projects, and with zero recorded consortium partners, both projects appear to have been executed as solo SME Instrument applications — a common pattern for product-focused SMEs developing proprietary technology. This means they are accustomed to owning the work end-to-end rather than co-developing with partners, which could make them either a focused technology provider in a consortium or a demanding lead partner who is used to full control. Anyone approaching them for collaboration should expect a company-centric dynamic with strong ownership of their IP.
STRINGBIKE KFT has no recorded consortium partners from their H2020 participation, having run both projects independently under the SME Instrument scheme. Their network is effectively local or self-contained at this stage, with no documented cross-border research partnerships.
What sets them apart
STRINGBIKE KFT is one of very few EU-funded SMEs developing a string-drive handbike mechanism specifically engineered for wheelchair users, placing them in a narrow but commercially significant niche within assistive mobility technology. Unlike academic research groups, they are a product company that has already validated and scaled a physical device through the full SME Instrument pipeline, meaning a partner or buyer is dealing with an inventor-manufacturer rather than a research team. Their dual value — physical therapy tool and recreational mobility device — gives them a wider addressable market than pure medical device companies.
Highlights from their portfolio
- STRINGHANDBIKEThe largest project by far (€1.13M, SME Phase 2), this represents the full commercial scale-up of their core technology and is the clearest evidence of their product's market validation by EU evaluators.
- STRINGBIKEThe original Phase 1 feasibility project (€50K) that launched the product concept and secured the foundation for the larger Phase 2 grant — notable as the starting point of a clean two-phase EU commercialization track.