Challenge Flex 20 Inch Commuter Bike - Unisex332/4604

  • £99.99

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About this product

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.

154 reviews

Overall rating (4.1)

Build Quality
BazaarVoice TrustMark
5 / 5
Build Quality

Good bike for the price

Shame the handlebars don't fold down, that's my only negative.

4 / 5
Build Quality

Excellent product, ideal to carry in the boot

Quick and easy to collect, but had to return owing to faulty saddle stem. Return no quibble.

4 / 5
Build Quality

My new bike suits me well

My bike is easy to ride and fold and does the job!

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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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