It's official: disc brake guards are happening

Tune to produce carbon fibre disc brake covers for September

German lightweight specialist Tune has released details of its own take on a disc brake guard for road bikes. Photographed here in prototype form, the Disc Sheath is a bolt-on solution that works together with Shimano’s Flat Mount standard to shield a majority of the rotor’s edge.

Originally reported by Bikerumor, the news comes only days after BikeRadar learned that Italian firm TRed was nearing production with its own very different disc guard design.

Numerous strategically-placed vents across each component in a design that pays particular attention to both aerodynamics and heat dissipation
Numerous strategically-placed vents across each component in a design that pays particular attention to both aerodynamics and heat dissipation

Chosen to work with 160mm rotors, the guards mount independently of the bike’s axles, meaning wheel changes should remain uninterrupted. The covers wedge between the brake mounts and caliper and require special washers to space the design accordingly. 

The use of said washers does distance the caliper from the disc slightly, reducing overall pad contact. It’s a compromise that Tune is happy with, though, and should mean these will fit comfortably on any flat-mount compatible frame or fork with a 160mm rotor in place.

The guards mount independently of the bike’s axles, meaning wheel changes should remain uninterrupted
The guards mount independently of the bike’s axles, meaning wheel changes should remain uninterrupted

Pictured here are pre-production 3D printed prototypes, the finished product will – unsurprisingly for Tune – arrive in carbon fibre.

It’s a fresh and somewhat surprising approach in the ongoing discussion on the safety of disc brakes in the professional road peloton, and we're expecting plenty of similar designs to emerge before these hit production

This silhouette could well be symbolic of the future of road cycling
This silhouette could well be symbolic of the future of road cycling

As of yet we’ve got no word on pricing but have been told to expect production versions by September.

Oli Woodman

Section Editor, UK
With more than 10 years of experience riding mountain bikes, Oli knows the good from the bad when it comes to gear. He's a total bike nerd and loves few things more than fettling with spangly riding bits. Also, he seems to have a talent for crashing hard but emerging unscathed.
  • Discipline: Mountain
  • Preferred Terrain: Loamy singletrack
  • Current Bikes: Marin Pine Mountain, Pinnacle Dolomite
  • Dream Bike: Honda RN01
  • Beer of Choice: Corona
  • Location: Bristol, UK

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