An essential accessory for bike rides.

Cycling Computer - 300 Bike Map Holder B'TWIN
  • Cycling Computer - 300 Bike Map Holder B'TWIN
Cycling Computer

B'TWIN 300 Bike Map Holder

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protection for maps, allows easy reading of your route. Essential for cycle touring.

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2.5 / 5

2 reviews

1 person recommend this product

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Does the Job


  (United Kingdom)

4 5

Bought this for a week long trip round France and overall it performed well. Looked at other more expensive options before deciding to give this a go and am pleased I did. Good value.

Updated model not fit for purpose

Right size.

Now made of cheap soft clear plastic, so useless


  (United Kingdom)

40-49 years old    Man

1 5

used for 1 week or less I have an old one of these. It is starting to tear where the velcro straps are stitched to the body after a very good service. The new ones look exactly the same so I ordered two while they are right. Too late - wrecked by cost-cutting. They are identical except the clear plastic is not stiff like the old one (and like all decent walking map holders). It is very thin, stretchy, and grabby. Difficult to insert and withdraw maps, both your hands and the maps stick to the plastic. In situ, the whole holder drapes down each side of the handlebar stem as there is no strength in the plastic. Didn't waste time trying out on the road, repacked and returned them immediately. Have strengthened my old one around the weak points with clear polythene All Weather Tape (like sellotape but very strong), and this will do me till I get a walking map holder and adapt it.

Response of the brand

Dear Sir,
I'm sorry to read from your review that this products is not as good as it used to be.  Products should improve over time and not get worse!
I have forwarded your great feedback onto the product manager as it may be a quality control issue in the production facility which may not have been picked up.
Please accept my apologies.
Peter Lazarus UK Market Manager DECATHLON

An error has occurred
Composition Main fabric : 100.0% Thermoplastic polyurethane (TPU)
Restricted use : Not watertight - cannot be submerged in water.
Guarantee : 2 Years