Under CTT rules in the UK, when you ride time trials it is mandatory to run front and rear lights. Rear isn't a problem - it will always be my Garmin radar. But for front it would be best to have the smallest possible light, tucked out of the wind, ideally via a Go pro style mount under my Garmin. Performance isn't really a concern - there is no need to use it to see by - and as long as it lasts a couple of hours on flash it would be fine. I've got a Xoss XL800, but that is much chunkier than ideal (and also been quite disappointing in terms of performance - not that I care about that for this use!). There are literally thousands of bike lights in AliExpress but I can't seem to find much that fits the brief - anything that mounts using Go Pro style mounts tends to be a big "to see with" light.  Anyone got any suggestions?

The bontrager ion is quite small and there are go pro adapters for it

ravemen fr160 or similar form factor? i think i've seen another brand do it, maybe thinkrider

Not from AliExpress, but the Boost DayBright or Trace DayBright from Exposure Lights are tiny and weigh 45g and 35g respectively. I have the Boost DayBright mounted using the GoPro mount under the Garmin bike computer mount on one of my bikes, it's great.

https://www.exposurelights.com/products/boost-daybright-mk2-gun-metal-black

https://www.exposurelights.com/products/trace-mk3-daybright-gun-metal-black

The bontrager ion is great for the size and weight. I like the compact little cube form, and with the blendr adapter it is streamlined under the garmin mount. The quick release is convenient and secure. If I didnt use this, I would probably use one of the exposure lights.

I'm sure there are equivalent Alix lights but once you find something that works...... stick with it.

This Trustfire light is pretty small, light and cheap.  Its also surprisingly bright.
https://www.aliexpress.us/item/3256806529223121.html
The only "complaint" is it's not exactly a GoPro mount. It fits, but it can be a struggle on strong aluminum mounts or you take a file/dremel to it.

Could you get away with a tiny coin size drone LED stuck to the front like an ultra weight weeny hillclimber bike?  They'll run a really long time in blinking mode. (i've gotten 2-3 hours on night rides out of them in blink mode and over half an hour running constant) I just use a hair tie or rubber band and stick them all over the bike on night rides so I look like a rolling christmas tree.
https://www.aliexpress.us/item/3256804421457863.html

This light be what you're looking for. Still a bit large but at least it's a bit more aero if the wind is an issue. And you can use it as a battery bank when you're no doing TT.
CYCLAMI Bicycle Light 5000mAh Daytime Headlight  https://a.aliexpress.com/_mskt3Sx

This one's less aero, but it looks like you can mount you computer on top
Rockbros Bicycle Light Front https://a.aliexpress.com/_mqWNsDd

Only found these yesterday, and was considering purchasing let me know if you end up going with of of em.

I glue this light
https://it.aliexpress.com/item/1005004247793895.html?src=google&pdp_npi=4%40dis!EUR!2.55!2.55!!!!!%40!12000028515412643!ppc!!!&src=google&albch=shopping&acnt=742-864-1166&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&&albagn=888888&&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=it1005004247793895&ds_e_product_merchant_id=107886332&ds_e_product_country=IT&ds_e_product_language=it&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=22261776456&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gclid=EAIaIQobChMIguOVk4nIjAMVv6aDBx3lCwsfEAQYASABEgK9bfD_BwE

to a go pro adapter and screw under garmin mount

Quote from: Crash217 on April 07, 2025, 10:42:58 AM
This Trustfire light is pretty small, light and cheap.  Its also surprisingly bright.
https://www.aliexpress.us/item/3256806529223121.html

Could you get away with a tiny coin size drone LED stuck to the front like a hillclimber?  They'll run a really long time in blinking mode. (i've gotten 2-3 hours on night rides out of them in blink mode and over half an hour running constant)
https://www.aliexpress.us/item/3256804421457863.html

That Trustfire looks exactly the sort of thing I was after - thanks very much.  Like the rechargeble blinkers too - they look a great plan B and at that price will probably order as well.

I've been a fan of the Xoss lights that come with GoPro mounts. I have a few Xoss 800 or 1200 lumen lights that I mount under my Garmin, but they make smaller ones (400 and 200 lumen). I like that they're rounded and streamlined, too. The 200 lumen one is adorably small and nicely streamlined (at least it looks that way).

Xl-400
https://www.aliexpress.us/item/3256804318675408.html

XL-200
https://www.aliexpress.us/item/3256808307065174.html

I've ran one of these with some success, heavily inspired by the Raveman stuff...


https://www.ebay.co.uk/itm/395528144316?_skw=fr200+light&itmmeta=01JRT75J5NZ9PDW815Z36A9QQZ&hash=item5c175085bc:g:ndcAAOSwc4VmkO6i&itmprp=enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1cFBF7QSmaslxb1G%2BJ8FWmf9VPOjQ21K4k30fkjrfeQ7IHLCEuXQF5MIC%2BxTtEi%2BgpD%2B2yLDVlxPV2fZpSSEvw1F82YFSXL3DmozPS%2FAj%2FCLwBTVxPBvm54bihZeXMo%2BT%2FC%2BImQud6hC%2FtEz2DgO82zbogWluZAkmMP6I38PKfUzTDQAzD0pGA8z25zuXeC9LZ2Rq%2BhMmbpLDwslY61oLitnYt6ciUHR0Hefx%2Fp11JM2IXS4NNj940rt6ldmvpd2Q8%3D%7Ctkp%3ABk9SR_ailsfGZQ