The RSP Astrum rear bike light is powerful, compact and water resistant – everything you need from a commuter bike light. 2 x ½ watt LED's offer a powerful beam of light which is cast over a wide arc to enhance your visibility at different angles.
The Astrum rear light comes with flashing and constant brightness modes. A water resistant construction is great for year round riding and commuting.
Odd thing about rear lights is you don't know how good they are as you don't generally see them. When I was riding in with my club a few people wanted to know where the light came from as stood out so brightly. That when I bought my second one.
Odd thing about rear lights is you don't know how good they are as you don't generally see them. When I was riding in with my club a few people wanted to know where the light came from as stood out so brightly. That when I bought my second one.Close review
A good bright light with 3 modes, steady, flashing and alternating between the two LEDs which is the one I like. I've had RSP lights before and like them. The build is still as good but the design with the two individual lights is better. Very reasonable price too.
A good bright light with 3 modes, steady, flashing and alternating between the two LEDs which is the one I like. I've had RSP lights before and like them. The build is still as good but the design with the two individual lights is better. Very reasonable price too.Close review
What are bike lights?
Bike lights are vital accessories which attach to your handlebars, seatpost, helmet, bag or jersey. Their function is simple – to help you to see and be seen.
Who needs bike lights?
Everyone needs bike lights! It’s a legal requirement to use front and rear lights on your bike between sunset and sunrise, but they are also useful when visibility is poor – in the fog for example.
What are the choices?
Light technology is ever evolving and the choice is enormous. Always think “the brighter the better” and look for a higher lumen output when choosing. There are lights that run on batteries or beams which can be recharged via plug or a handy USB socket (great for topping up at work). Some lights have battery packs and most have a selection of modes to choose from. You’ll definitely need the brightest lights if you ride wooded trails as you’ll really need to see where you’re going!
What should I buy with them?
Spare batteries are handy if your bike runs on these, as is a charger if it’s rechargeable. Spare mounts are always useful, especially if you have more than one bike. A helmet mount points the beam where you’re looking, rather than the direction your bike is pointing.
Don’t get caught out – a spare back up light is a great purchase in case your ride goes on longer than anticipated or the lights go out earlier than expected.
See our Lights guide for more.
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE to mainland UK, regardless of the size and value.
Please note: bulky products and bikes shipped to outlying UK regions are excluded from free shipping - Click here for more info.
Christmas is one of the busiest time of year for us at Tredz. We will try our best to get your products delivered before Christmas. To help you, please see our last postage dates for first class and 24 hour courier services below:
Any order dispatched on the 22nd & 23rd December will be delivered between 28th December and 30th December.
|Country||Small orders||Bulky orders||Large orders / bikes||Delivery (working days)|
Choose your delivery country:
It’s easy to return a product with our 365 day, hassle free returns.
We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
For more information please visit our Returns & Warranty page.