Review - Topeak Javaslim adjustable cage

The Topeak Javaslim cage is marketed as an adjustable bottle cage which is really suited for insulated coffee cups, water bottles or other cylindrical objects such as  a bluetooth speaker.

It has an adjustable spine and bottom, and the top has a rubber strap to keep a cage secure.

All good you may think, as I did.

The problem is the top with the rubber strap. The plastic is moulded to accept a small diameter object, and isn't even wide enough to accept a standard water bottle without a struggle.

Whilst the bottom will expand to accept a bottle 85mm in diameter, the top will fight you all the way if the diameter is more than 55mm.

Topeak do make a similar cage with a larger top diameter, and if this design suits your needs then that's the one you should get. The Slim variant here is next to useless sadly.