West Biking Ultralight Integrated Bicycle Helmet

We are not able to state a certification for this helmet, because the supplier has not provided documentation of one and we will not publish a safety claim we cannot evidence. If a certified helmet matters to you - and for most riders it should - ask us and we will tell you honestly which helmets in our range come with documented certification.

Because we do not have a manufacturer weight figure for it, and inventing one would be dishonest. The construction is in-mould, which is the method that makes a light helmet possible, but we are not going to put a number on the page that we cannot stand behind.

Level on the head, not tipped back. Two fingers width between your eyebrows and the rim. The side straps should form a Y just below each ear, and the chin strap tight enough that you can get one finger under it and no more. A helmet that moves when you shake your head is not protecting you.

Run a tape measure around your head about a centimetre above the eyebrows and around the widest point at the back. That measurement in centimetres is your size. Measure before you order rather than guessing - helmet fit is the whole product.

Yes, after any impact to the helmet, even if it looks undamaged. EPS foam protects by crushing, and crushed foam does not spring back. The damage is usually invisible from outside. A helmet that has taken one impact has done its job and owes you nothing further.

Manufacturers generally advise replacing a helmet every three to five years. In Tanzania, treat that as the outside limit - UV, heat and sweat all degrade EPS foam and strap webbing faster here than in a temperate climate. A helmet stored on a balcony in full sun ages considerably faster than one kept indoors.

Keep it out of direct sun when you are not wearing it, and never leave it in a parked car - interior temperatures here will soften EPS foam. Clean the shell with mild soap and water only. Never use solvents, degreasers or petrol-based cleaners on a helmet shell; they weaken the plastic invisibly.

Yes, and in this heat you should. Remove the liner pads, wash them by hand in mild soap, and air-dry them out of direct sun. A foaming kit cleaner works well for pads that stay in place. Sweat-soaked padding is both unpleasant and bad for the foam underneath.