New Boa fastening on cycling helmetsBetter support, fewer pressure points

Stefan Frey

 · 18.06.2026

Boa’s practical twist-lock fastenings have long been gaining ground on cycling shoes. Now, the Rocky Mountains-based company has unveiled a new system for cycling helmets. One of the first helmets to feature the new system is the Specialized S-Works Evade 4.
Photo: BOA Technology GmbH
Boa is launching a new helmet adjustment system, the FS2 Fit System: it can be rotated on both sides, adjusted in increments of less than 1 mm and, according to the manufacturer, offers noticeably more even pressure distribution thanks to the Dynamic360 cable guide. This is complemented by 11-position height adjustment for greater flexibility in achieving the perfect fit.

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With the FS2 system, BOA offers significantly finer adjustment than conventional helmet adjustment systems. The twist lock allows adjustments in both directions – in increments of less than a millimetre. This is designed to enable the helmet’s fit to be fine-tuned precisely even whilst riding. According to the manufacturer, the increments are around 40 per cent finer than with traditional systems.

​Editorial assessment

BOA is consistently applying its tried-and-tested fastening system to helmets. The FS2 system impresses with its attention to detail: finer adjustment, better pressure distribution and a noticeably more secure fit – that’s what Boa promises. This could be a real boost to comfort and performance, particularly for demanding trail and race riders. Let’s hope the new system also eliminates previous weak points, as the thin cable system has, in the past, sometimes caused pressure points on the sides of the head. The neck support might also be a little under-padded for sensitive wearers. We’re looking forward to the first test models.

A snug fit thanks to Dynamic360

At the heart of this new ‘miracle of adaptation’ lies the so-called Dynamic360 system. This is made possible by a low-friction cable system that runs all the way round, designed to gently cradle the head.

Whilst traditional systems often apply pressure to specific points on the front or back of the head, the FS2 is designed to distribute the tension evenly all round. This is intended to reduce pressure peaks and keep the helmet more securely in place on the head. BOA claims up to six per cent greater stability compared with conventional solutions.

A new design for a more comfortable fit

One design change concerns the separation of the yoke (rear head support) and the headband guide. This design is intended to securely hold the back of the head in place whilst simultaneously stabilising the sides. This is complemented by vertical adjustability with eleven positions, each spaced four millimetres apart. This allows the system to be better adapted to different head shapes. Standard helmet systems usually offer adjustability in three steps.

Initial areas of application and availability

The FS2 system is making its debut in selected high-end helmets, including models such as the Specialized S-Works Evade 4 and the Leatt Gravity 5.0. The technology will be showcased at events including the UCI World Cup in Leogang, where visitors can also try out the new fitting system for themselves.

Key features at a glance

  • New BOA FS2 Fit System for cycling helmets
  • Dynamic360 technology with adjustment on both sides
  • Very fine adjustment in increments of < 1 mm
  • Uniform pressure distribution all round thanks to the cable system
  • Reduced pressure points and an improved fit
  • Approx. 6% greater grip compared with conventional systems
  • Vertical adjustment with 11 positions
  • Separate yoke and headband design for a better fit
  • 36% recycled materials in the closure system

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Stefan Frey is from Lower Bavaria and loves the mossy, loamy trails of the Bavarian Forest as much as the rugged rock of the Dolomites. For technical descents, he is prepared to tackle almost any ascent - under his own steam. As an accessories specialist, he is the first port of call for questions about equipment and add-on parts, while as head of copywriting he sweeps the language crumbs from the pages of the BIKE print editions.

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