The Smith Portal is a competent budget helmet, although it’s slightly on the heavy side and a bit bulky. Without MIPS it’s well priced, but the premium for MIPS puts it in a price bracket where there’s a lot of competitors, some of which are better options.
Nicely finished budget helmet
Well priced for the non-MIPS version
MIPS option – although this is expensive
A bit bulky
The Smith Portal bears a strong family resemblance to the Smith Route helmet, which we tested a couple of years ago. But gone are the Route’s koroyd inserts, designed to provide better impact adsorption than expanded polystyrene, in favour of an all-EPS construction.
The Smith Portal’s weight has also decreased relative to the Route, shedding over 40g for the size large. Nevertheless, the Portal feels like quite a bulky helmet compared to the best in its class. That’s probably down to the quite large shell profile, so that the Smith Portal and its straps don’t fit as close to the sides of the head as many helmets.
It does benefit from a MIPS liner though, designed to help reduce impact stresses on the brain in the case of a glancing impact. You can buy the Portal without MIPS too, bringing the price down to £68. £25.50 is quite a high price for MIPS – other makers have it as an option without such a jump in cost.
Ventilation is good from the 18 vents, although not up to the standard of higher priced helmets. I found that the XT2 internal padding got quite damp after a ride, even at moderate intensity.
Fit adjustment is good, with a pop-out three-position vertically adjustable cradle and a rear dial for fit adjustment around the head circumference. Smith’s wide straps help keep everything in place well, although you can feel the helmet’s weight and its deep brim is noticeable when riding.
The plastic outer shell does wrap over the EPS lining well, covering it around the bottom and into the vents, thus reducing the chance of damaging the polystyrene when handling the helmet.
If you are prepared to forego the MIPS liner, at £68 the non-MIPS Portal helmet looks like reasonable value. But the additional cost of the MIPS layer makes the Smith Portal difficult to recommend over other helmets priced at around £100.
Thank you for reading 5 articles this month* Join now for unlimited access
Enjoy your first month for just £1 / $1 / €1
*Read 5 free articles per month without a subscription
Join now for unlimited access
Try first month for just £1 / $1 / €1
Paul started writing for Cycling Weekly in 2015, covering cycling tech, new bikes and product testing. Since then, he’s reviewed hundreds of bikes and thousands of other pieces of cycling equipment for the magazine and the Cycling Weekly website.
He’s been cycling for a lot longer than that though and his travels by bike have taken him all around Europe and to California. He’s been riding gravel since before gravel bikes existed too, riding a cyclocross bike through the Chilterns and along the South Downs.
US Pro Nationals Preview: all you need to know about the battles for the Stars and Stripes in Tennessee
The best US cycling talent converge in Knoxville, Tennessee June 23-26, for the US Pro National TT, Criterium and Road Race Championships
By Clara Beard • Published
Lucinda Brand takes overall victory at Tour de Suisse Women with dramatic stage four win
Brand won the overall via a long-range attack on the final stage, whilst previous leader Kristen Faulkner crashed in the closing metres
By Ryan Dabbs • Published
Amy Pieters able to communicate non-verbally as she recovers partly at home
SD Worx rider's father tells Dutch TV that he has seen "progress" in his daughter's condition
By Adam Becket • Published