AlterLock alerts you if your bike is moved and lets you track its location

Low profile unit sits under your bottle cage and includes a tamper alarm and mobile comms

AlterLock bike in stand
(Image credit: AlterLock)

 

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Paul Norman

Paul started writing for Cycling Weekly in 2015, covering cycling tech, new bikes and product testing. Since then, he’s reviewed hundreds of bikes and thousands of other pieces of cycling equipment for the magazine and the Cycling Weekly website.

He’s been cycling for a lot longer than that though and his travels by bike have taken him all around Europe and to California. He’s been riding gravel since before gravel bikes existed too, riding a cyclocross bike through the Chilterns and along the South Downs.