Broadly speaking, increased competition at the low end and tariffs eating what profit margin they had are probably the major factors, but there were others. They ate a few lawsuits in the US regarding people getting injured (and in one case, killed) riding their bikes. They got huge influxes of venture capital cash in 2020 and 2021, which came with big growth expectations and they moved aggressively to expand sales to brick and mortar. I personally think they tried to grow too fast and too aggressively at a time when competition was exploding and margins were shrinking and put themselves in a bad spot. Their last two CEOs were not even bike industry people; Phil Molyneux came from Sony and Dyson and Kathi Lentzsch was previously at Bartell Drugs. Which speaks to the leadership mindset. IMO you need people who know the bike industry if you want to succeed in the bike industry.
Like a lot of niche industry companies, they established themsevles as a successful company and then took that sweet, sweet VC cash to try and achieve rapid growth outside the niche industry they started in and it didn't work out. It rarely does. But the OG company people do get to cash out.
I also think they were hurt because they largely stuck with legal bikes as the chinese imports were moving towards emotos-pretending-to-be-ebikes, which was more attractive to the non-cyclist crowd.
I personally think its a shame they are going out. I can't speak for their current lineup but in the past they were really solid bikes for their price point. I have two friends who have early rad wagons and they have been solid and reliable commuters
learn more here at a really good price. I do think for several years they did a good job of giving people a lot of bike at the price points they were sold at. Not amazing, but generally a good value. But there is a lot more competition in that space now.