Originally Posted by
dazcox5181
OK, I gave in a bought a Challange 20" folding 6gear city bike from Argos in the UK for £74.
I have a MTB that is my main cycle, but you can't take it on public transport in rush hour and as I'll be working in the city (London) more thought a folding bike might fit.
Now I'd love to have got a brompton, or Dahon but can't afford the £100's involved in that - so this cheapie will have to do.
First please feel Welcomed to this forum.


Thank you for taking the time to post & start this thread.
I never heard of the Challange folding bike, but apparently it is not imported to the United States like Dahon, Brompton, and some others are. But if it has the folding feature built in, it does offer the same ability as the others do-compress into a smaller package though perhaps not as nice or neatly.
Originally Posted by
dazcox5181
Won't be killing in on mileage and I know performance won't be great...however it is the same weight as a £6000 Dahon so now I'd like some advice on further improvements I can make.
- I'm thinking some quick release pedals will be a start for folding size.
- Next The handlebars don't fold, but can I get either a quick release stem/post or can anyone advise a source for a folding post/stem like the dahon's have?
- Lastly, I think I can lose some weight from the wheels - would more or less any 20" wheel fit?
Sorry for the ignorant questions...I have searched but there's a lot of parts out there to choose from!
Assembled the bike sunday, not rode it properly yet due to adverse weather in UK

Pedals are a rather simple item to improve upon without going into too much money. You have a choice between folding types or separating types. Each type offers pros/cons in usage. I have both. My Brompton and Dahons have or had folding ones. They simply folded out of the way. The advantages were I never had to remove them. The disadvantage is they do jut outward a bit. The Raleigh Twenty will have a completely removable separating MKS ones. The advantage is there is no noticeable jutting out of the pedals. The disadvantage is I can misplace or even lose them if I am careless.
The handlebars/stem is another matter. My Brompton's & Dahons' ones actually fold down, my older Raleigh Twenty's handlebar/stem does not. But my Twenty's one does completely separate from the frame. I sewed a soft cushion with Velcro straps (looks strange, but it does works) to hook the handlebar/stem unit to the frame when it is taken off the bike without scratching and/or damaging to either the frame or the handlebar/stem. This practice may not be as nice as the others, but I can and do (as it is presently is in as of this writing) break my ancient R20 down into a smaller package just like the others.
As for wheels, I changed my Twenty's old steel rims to alloy ones for lighter weight, corrosion resistance, & far improved upon braking power. But 20" does not necessary mean an actual 20". There are actually 2 sizes that use the 20" label-406 & 451. Check your own bike and see which ones are used.
Good luck on using your bike. If you have any problems with it, don't be shy about taking your bike back to the bike shop. Be sure to visit my
World Of Folding Bicycles Website series listed below: