Swiss company Stromer, which has been the market leader in speed pedelecs in the Netherlands and Belgium for many years, has recalled approximately 6,500 devices. The speed pedelecs are equipped with a WREN brand suspension fork, but they have a safety issue.
A risk of metal fatigue has been identified in the steering tube of the front fork. This can cause cracks, breakage, or complete detachment of the fork while riding, which can lead to serious accidents, especially at speeds up to 45 km/h. Fifteen reports of defects have already been received worldwide, with injuries in eight cases.
Stromer ST3, ST5, and ST7
The recall is limited to specific configurations of the following series: Stromer ST3, Stromer ST5, and Stromer ST7. For clarity: only American-made bikes with a WREN suspension fork are affected by the recall. Stromer strongly advises against using the affected bikes until the fork has been replaced.
The repair will consist of a completely new fork kit (steerer tube, crown, and fork legs), with only the internal dampers from the old fork being reused. The replacement is free of charge and will be performed by authorized Stromer dealers. Stromer does not provide replacement bicycles.
Damage to reputation as the Rolls-Royce of speed pedelecs
The Stromer ST5 Smartshift, priced at up to €10,990, is considered the Rolls-Royce of speed pedelecs. It was the winner in the speed pedelec category (assistance up to 45 km/h) in the VAB ‘Bike of the Year 2025’ competition. The motor and assistance, as well as the riding experience and safety score, helped the Stromer take first place.
The Swiss company Stromer, officially myStromer AG, was founded in 2009 by Thomas Binggeli and is headquartered in Oberwangen, near Bern. They also promote themselves with the renowned ‘Swiss precision’ to justify the bikes’ high price, although that image of reliable technology is currently taking a bit of a hit.
Stromer has around 500 authorized dealers worldwide. Although they operate in more than 25 countries, their focus remains very much on Europe and North America. The most important markets are Switzerland, the Netherlands, Belgium, and Germany.
