Challenge Flex 20 Inch Commuter Bike - Unisex332/4604


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About this product

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The Challenge Flex is an ideal commuter bike, with city style tyres and reliable microSHIFT gears. Designed to help you beat traffic and get to work easily and quickly, this beautifully finished bike with a black steel frame, rigid suspension and 6 gears with Revoshift shifters, is a classic, rapid and lightweight alternative to the normal bicycle.

  • Steel frame.
  • 6 gears.
  • Twist grip shifters.
  • microSHIFT MS12-6R gears.
  • Shimano RD-TY18 rear derailleur.
  • Front V-type and rear V-type brakes.
  • Rigid suspension.
  • Steel forks.
  • Weight fully assembled 14kg.
  • 13 inch frame size.
  • 20 inch wheel size.
  • 14 to 33.7 inch inside leg measurements.
  • Minimal assembly.
  • EAN: 3324604.

148 reviews

Overall rating (4.1)

Build Quality
BazaarVoice TrustMark
5 / 5

Good Bike

This folding bicycle came in a box that was easy to carry away and fitted in the boot of my car. It only needed the handlebar fitting with the tools provided and after testing was ready to go. The saddle adjustment is good and it comes with twist grip 6 speed gears. It has a prop stand ,bell but no rear carrier.

4 / 5

Not bad for the price

I was dubious about this bike initially, but decided to take the plunge, we needed a folding bike and this one seemed to be ok. Reviews were not particularly loving so I was concerned. its not light, but its not meant to be, the seat is not the comfiest, but can be sorted. if you are looking for a cheap folding bike then this is a winner. if you want to spend more then there are a number of alternatives but not for this price :)

4 / 5

Good Value

I hadn't been on a bike for about 40 years and wasn't confident of taking a bike out onto the roads. I wanted to get fitter and this folding bike is ideal for me to put in the boot of my car and I can then drive 2 miles to the nearest cycle track and cycle to my hearts content. I had looked at folding bikes in my local bike shop but the cheapest one they had was £100 dearer than this one. This is great value. The only downside is the lever which unfolds the bike is quite stiff.

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Questions & answers

44 questions | 51 answersAsk a question
What is the maximum weight this bike will support?

I am a 6ft 18stone male and I suspect I am way too heavy for this bike! It would however be ideal to throw in the boot for occasional use as I don't want the added expense of buying a car rack to take a fixed frame model.

1 Answer

15 stone max

is this a good bike to be able to get up hills?

I was wondering if this will get up a hill easily, is it light? any other colors, accessories?

1 Answer


It would depend on your physical stamina on if you would find this easy to get up a hill. I can confirm that this weighs approximately 14KG.
Also, this is the only colour of this bike that we currently stock

Thank you for using Argos Q&A

big enough for me

I ,m 32inch leg and 6foot 3inches weigh16+10lbs is itok for me.

1 Answer

not recommended
as my husband is 6ft weighs 15st
and you would not be able to extend the saddle any higher

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Boring but important info

Bike Tyres

The tyres on our bikes are sold partially inflated to prevent damage in transit. You will need to fully inflate the tyres before use.

*Prices correct as displayed but are subject to change.

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