British e-bike manufacturer Flit has presented the M2i, a lightweight folding commuter that replaces conventional frame welds with structural adhesive technology drawn from aerospace and high-performance automotive production.
The Cambridge-built single-speed model uses bonded 6061 aluminum tubes. Flit says avoiding welding preserves the metal’s original strength and prevents heat-related distortion, an important consideration for the precise alignment of a folding frame. The joints use nested, machined sleeves and two-part structural epoxy to spread loads over a larger area than a weld bead.
At 13.3 kg, the M2i is notably light for an electric folder. Its top tube houses a 230 Wh battery, while standard equipment includes hydraulic disc brakes from Hope, Goodyear Eagle F1 R tires, integrated LED lighting and a carbon-reinforced fizik saddle. Optional mudguards add 450 g.
Flit reports that the bonded frame was subjected to as many as 500,000 repeated stress cycles in laboratory testing, followed by overloaded riding on potholes and curbs. Early road tests prompted the company to strengthen the rear swingarm, but the adhesive joint itself reportedly remained intact.
The M2i is priced at £2,999 in the UK. That positions it well below the titanium Brompton Electric T Line cited as its main rival, while also undercutting that bike’s weight. International customers currently need to request an export quote directly from Flit.
Source: New Atlas