The Fidlock VACUUM Ahead Cap Base revolutionizes smartphone transport on bikes thanks to patented technology combining magnetic force and vacuum suction effect. Designed to mount on the Ahead steerer cap (1"1/8), this holder offers ultra-secure attachment, 360° rotation and intuitive one-hand operation — even on the most demanding terrain.

VACUUM Technology: dual magnetic + suction security

The Fidlock VACUUM system is based on patented integrated geometry combining two invisible forces: the magnetic force automatically centers the smartphone on the base to ensure perfect contact, while the suction cup generates an air vacuum under load that instantly locks the phone in case of impact or intense vibration. The smartphone is released with a simple press on the side lever of the base. This dual mechanism ensures exceptional hold on road, gravel, MTB and technical single-tracks, without any interference with electronics (NFC, contactless payment, GPS).

Technical highlights

• Universal Ahead mounting: compatible with all threadless 1"1/8 (28.6 mm) headsets — the near-universal standard for road, gravel, MTB, cyclocross and urban bikes
• Modular attachment system: special Ahead cap screwed to steerer tube + magnetic base secured by clamp (knurled screw for quick change or Allen screw for anti-theft)
• Featherweight: 112 g for the complete set (base + cap + hardware) — total discretion when smartphone is not mounted
• 360° rotation with anti-rotation ratchet: free smartphone orientation (portrait/landscape) with detent system preventing any involuntary rotation while riding
• Intuitive one-hand use: instant magnetic attachment, release by simple lever press — ideal for GPS navigation, photos, videos or voice commands
• Extended compatibility: works with all Fidlock VACUUM cases (iPhone, Samsung) or the universal VACUUM adhesive patch to use your existing case
• Premium finish and materials: high-strength composite (glass fiber reinforced PA66GF, PA6, ABS), recognized German Fidlock manufacturing quality

Installation and versatility

Installation is simple and quick: the special Ahead cap screws onto the steerer tube (like a standard cap), then the magnetic base clips on top and is secured with the supplied clamp (knurled screw to quickly switch between multiple bikes, or Allen screw for permanent anti-theft locking). The base can be removed instantly to restore the clean aesthetic of the bike when no smartphone is needed. The VACUUM system is also available in handlebar versions, universal GPS mount (Garmin/Wahoo/Sigma), car windshield mount, tripod and desk — one case/patch for infinite uses.

Delivery content

Delivery includes the VACUUM Ahead cap magnetic base, the Ahead steerer cap with preload bolt, the mounting clamp with knurled screw and Allen security screw. Smartphone case or universal patch sold separately (required for system operation).