Hi Odia.

If looking for a second hand bike there are a few options. The best usually is the big spring-time one at Belle Etoile, usually around March time.

However there are also options elsewhere, for example B:Loft just organised a 2 day bike sale at Rotondes. Very often The Gemengs will organise a mobility event, which will often have a second hand bike sale, you can sometimes get lucky at these, keep looking for them!

European Mobility week is coming up (16-22 Sept) and Luxembourg will particpate. There may well be second hand bike markets across the country at local level. Check here http://www.mobiliteitswoch.lu/

On a permanent basis the two Troc shops in Lux and Esch usually have one or two bikes (not always great or that cheap, but worth a look if you pass by) also the Sell n Buy shop in Bertrange may be worth a look.

For new bikes here is a map of bike shops http://map.geoportail.lu/theme/main?map_id=3bca46b260e1413a9954559652967f74&version=3&zoom=10&X=682406&Y=6397677&lang=fr&layers&opacities&bgLayer=topo_bw_jpeg

There is a facebook group here for selling bikes, but tend not to be at all cheap https://www.facebook.com/groups/201241546643695/

Finally if you are in the city the Vel’oh city bikes are as cheap as they can get – either 1€ a week or 15€ for a full year (each rental is free for first half hour then 1€ an hour.)

Hope this helps a little bit and good luck