No install
Hand-tight on the valve. No wires, no tools, no garage visit.
Colour
StemFlare LED Valve Stem Lights — 4 Pack
$29.99
- Screw on. Light up. Ride out.
- Upgrade your car, motorbike or bicycle in under a minute
- Motion activated: on when you roll, off when you stop
- Fits Schrader and Presta valves, batteries included
Secure checkout • Tracked delivery
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Contains button cell batteries — keep away from children. For show and off-road use; check local laws on coloured vehicle lighting.
Why riders pick StemFlare
Full ring of light
One light per wheel draws a complete circle of colour when you roll.
Five colours
Red, blue, green, yellow or colour-changing multicolour.
We Know What You're Thinking
Shipping & delivery?
Every order ships with tracking and you get an email update as soon as your package is on its way. The delivery estimate for your address is shown at checkout. Full details are in our shipping policy.
Will it fit my valves?
Yes. StemFlare fits standard Schrader valves (cars, motorbikes and most bikes) and Presta valves (road and gravel bikes). It screws on in place of your valve cap.
Does it affect tyre pressure?
No. Your tyre is sealed by the valve core inside the stem. StemFlare sits on the outside where the dust cap normally goes.
How does it turn on?
It's motion activated. The light switches on as the wheel starts to turn and goes off shortly after you stop.
What batteries does it use?
Each light runs on small button cell batteries, which come installed. Button cells are dangerous if swallowed, so keep the lights and any spare batteries away from children.
Is it road legal?
Rules on coloured lights on vehicles differ by state and country, and some places restrict red or blue lights. StemFlare is sold for show and off-road use. Please check your local laws before riding on public roads.
Can I return it?
Yes. See our refund policy for how returns work, or email us and we'll sort it out.