Aerofit 900 Cycling Helmet - White/Black



Made for cyclists looking for an aerodynamic, comfortable, very lightweight and well-ventilated helmet for enhanced thermal regulation.
Helmet designed for road or MTB cross-country cyclists looking for an aerodynamic, well-ventilated helmet that is also very light and durable thanks to the use of In-Mold moulding technology.

This product is no longer in stock for online order. Please check below for store availability.

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VentilationThe helmet's grille and inner channels facilitate continuous air flow.
LightweightUltra-light helmet thanks to its In-Mold moulding construction and compact size.
Easy dressingFull turn-ring system fully covers the head ensuring fast, precise adjustment.
AerodynamicsDeveloped using a wind tunnel to maximise its drag coefficient.
Warranty2 Years
Technical Information

size M = 55-57 cm size L = 57-59 cm size XL = 59-62 cm
Size M: 200 g Size L: 230 g Size XL: 285 g
We have designed the helmet's inner ventilation to maximise thermal regulation of the head using the "jet" effect generated by air inflows through the grill, 16 inner channels and extractor.
In-Mold technology and EPS
The In-Mold moulding technology used in manufacturing this helmet makes it possible to mould the external polycarbonate shell during the expansible polystyrene (EPS) injection stage. This results in a structure that is much stiffer, very durable, and extremely light. The inner EPS structure absorbs the energy generated during an impact so that it is not transmitted to the skull, while the stiff external shell provides the helmet with longer-lasting durability.
Information / Concept / Technology
Foam : 100.0% Polystyrene (EPS) - Expanded

Stockage tips
Keep away from UV rays (direct sunlight exposure) to avoid premature deterioration of the helmet. Do not expose to high temperatures (60°C max.), store in a dry place.


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Runs small for SML
Used for 2 to 8 weeks
I usually take a medium but picked up a large in store which fits. The ratchet is tight so hopefully I can kit a beanie on underneath. Finish on the helmet is good and it's a bargain at the price. I much prefer it to other brands up to £60.

I like that the forehead pad wraps around the plastic mount so no sharp plastic edge is exposed. My last helment, like many, mean that on impact the edge easily digs into the skin which meant 7 stitches on my last (not btwin) helmet.

Rear staps on my mine are a little lose and not adjustable. The ratchet keeps the helmet secure enough though.

It would be nice if Btwin sold replacement pads so I could swap them out as I wash them and still use the helmet.
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