Trek announces bike recall after hydraulic brake failure discovered

(Image credit: Future)

Trek has announced a recall on several bike models fitting with Promax hydraulic brakes after finding the hydraulic brake hoses may become detached from the brake levers. The issue relates to Trek bikes that have been fitted with Promax Solve DSK-925 and Promax F1 DSK-927 hydraulic disc brakes. The issue is said to be caused by a loose fit between the hydraulic brake hose itself and the barb that is inserted into the brake lever end of the hose.

Trek says the fit can result in "improper clamping of the hose and ejecting or falling out of the brake lever". This could result in a sudden loss of braking ability and poses a crash risk.

Trek Dual Sport bike with Promax brakes — The Affected Promax Brakes (Image credit: Trek)

What bikes are affected?

Below is a table of the affected Trek bikes. The affected models are all hybrid bikes and mountain bike-style bikes from the past three years.

If you are unsure if your model is affected, you can enter your bike's serial number via this link on the Trek website.

Trek dealers will perform hose retention checks on bikes suspected of having faulty brakes. If the retention check fails a new olive and barb kit will be installed at no extra cost to the bike owner.

Trek will also provide owners who bring their bike for an inspection with a $10 store credit that can be used toward any Trek or Bontrager merchandise until the 31st of December 2023.

Promax, the manufacturer of the brakes has also designed a revised version of the brake hose barb to provide a tighter fit during assembly. The issue only affects revision one of the brakes, not revision two or three.

It's important to add, this recall is not specific to Trek bikes. If you own a bike from another manufacturer and believe it may be equipped with the affected Promax brakes contact your local dealer or the manufacturer.

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Model Year	2021	2022	2023
All colorways	FX2	FX2 / FX3	FX2 / FX3 / FX+2
All colorways	Verve 3 / Verve +3	Dual Sport 2 / Dual Sport 3	Dual Sport +2
All colorways	Row 3 - Cell 1	Verve 3 / Verve +3	FX Sport 4 / 5 / 6
All colorways	Row 4 - Cell 1	FX Sport 4 / 5 / 6	Row 4 - Cell 3

Tom joined the Cyclingnews team in late 2022 as a tech writer. Despite having a degree in English Literature he has spent his entire working life in the cycling industry in one form or another. He has over 10 years of experience as a qualified mechanic, with the last five years before joining Cyclingnews being spent running an independent workshop. This means he is just as happy tinkering away in the garage as he is out on the road bike, and he isn’t afraid to pull a bike apart or get hands-on with it when testing to really see what it’s made of.

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