A sub-250g weight isn't too shabby though, if not the lightest around, and in fact probably won't be the highest priority for the key market of riders it's aimed at. The old Manta (without Mips tech) came in at 215g in a medium size, showing that Mips – in this form, at least – still has its drawbacks.
Met claims a weight of 250g in this size medium, and the scales actually undercut this at 248g. Our pictures show the yellow webbing inside the helmet, which lines up nicely with the 15 ventilation ports and leaves some gapping for air behind it to be channelled around the head to the rearward 'exhaust' vents. No specific figures are given on that, but it's a reassuring statement given the inclusion of a Mips cranial protection system. Met also says that the ventilation has been improved. Interestingly, it seems that Met only tested it at zero degrees yaw, which equates to a block headwind (it might feel like it sometimes, but wind rarely blows in just that direction!), but it did simulate riding both on the hoods and in the drops – using the position of a fairly racy rider as a reference point (77 and 65 degrees head angle, respectively). I can't verify the aero claims, but they are: up to 4W improvement thanks to testing at 33, 55 and 80km/h in a wind tunnel. This one integrates reprofiled aerodynamics, a revised ventilation system and – perhaps most importantly – Mips protection. Of course, time waits for no brand, so in March this year Met launched a new version of the Manta. It achieved 9/10 by Stu's reckoning – he thought it was excellent. Stu reviewed the original back in 2016, when the Manta was born – if the marketing is to be believed – out of a request from the then-called MTN Qhubeka team to have a competitive lightweight aero helmet for the Tour de France. It's a good all-round helmet with a strong leaning towards fast club riders and racers interested in aero performance, but it's an expensive option.Īlthough practically every helmet brand and its cousin has an aero lid in its arsenal, the Met Manta has always rated highly. The Met Manta Mips Aero Road helmet offers a good blend of aero performance and ventilation while integrating Mips protection nicely.
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