1 of 2 people found the following review helpful
Not for bicycles - poorly made,
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This review is from: HOTER Bike LED Flash Light Wheel Valve Cap Bicycle Lamp(Price/Piece) (Misc.)
These appear to be made for car/bike tyres (Schrader valve), but are very poor quality - I'd be surprised if they survived the elements or anything other than the shortest journey. They are also unsuitable for push bicycle tyres - they're too big and unbalance a wheel, causing 'judder'. Great idea, but poor implementation. Shame.