Trek has recalled its touring bike, the 720 model, due to a number of the bikes being made with a potential dangerous wheel.
According to the brand, the affected wheel exhibits a higher rate of spoke breakage, meaning a broken spoke could contact the brake caliper causing the bike to stop suddenly. Trek are worried that this could result in a potentially serious accident.
Multiple bikes are supposed to be affected, and according to the recall site there have been injuries.
The United States Consumer Product Safety Commission states that around 800 bicycles and 300 wheels (of which 160 bikes and 40 wheels were sold in Canada) have been affected.
In the Uk, the 2015, 2016 and 2017 Trek 720 disc as well as the Bontrager approved TLR disc 700C 24H front and rear wheels are affected – if they have silver spokes.
The bikes have been sold since November 2014 through to October 2016.
Watch: Disc brake bike showdown
Other ways to identify the bike are through the frame.
Trek's 720 disc models have a "lightweight aluminium frame and vibration-damping carbon fork".
The company also says that the bicycles were sold in sizes 49 through to 61cm frames.
"The aftermarket wheels are marked Bontrager TLR on the rim and will have 24 silver spokes."
According to the recall website, there have been 10 reported incidents where either when the "wheel spoke contacted the bike's brake caliper or the spokes broke at the hub".
There has been one reported injury involving a broken vertebra.
Trek is advising that owners should immediately stop using the recalled bikes and parts. It is also keen to stress that the parts can be returned to a Trek retailer for a free inspection or a free replacement of the wheel.
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