Supernova Universal HBM Mount – Handlebar Clamp for 31.8 and 35 mm Bars

The Supernova Universal HBM mount is a universal handlebar clamp built for most SUPERNOVA front lights for bicycles and e-bikes. It fits both 31.8 mm and 35 mm handlebar diameters. The bracket is machined from anodised aluminium with a matt black finish. Its clamp is hinged, so it folds open around the bar.

HBM stands for HandleBar Mount. SUPERNOVA uses this designation for its handlebar bracket range. This model is the mount only. There is no LED, no battery and no electronics inside it. You pair it with a SUPERNOVA headlight you already own or buy separately.

Compatibility is broad but not unlimited. The mount works with most SUPERNOVA headlights, including dynamo-powered models and lights fed by an e-bike system. However, it does not fit the special HBM light versions or the AIRSTREAM battery light. Those two groups use their own dedicated brackets. Mounting is possible on the left or the right side of the handlebar.

Benefits and Advantages

• Two handlebar diameters – one bracket covers both 31.8 mm and 35 mm bars.
• Hinged clamp – the clamp opens, so it goes on without removing grips, shifters or brake levers.
• Anodised aluminium – the matt surface resists scratches from straps, bags and tools.
• Light and solid – the aluminium construction adds very little weight to the bike.
• Left or right mounting – you can place the light around your other cockpit accessories.
• Clean installation – no extra adapters or shims are needed.
• Matt black finish – it matches black handlebars and SUPERNOVA light housings.
• Precise light aiming – the beam can be directed for city riding and for trails.

Who Is This Mount For?

This bracket suits cyclists and e-bike (pedelec) riders who run SUPERNOVA front lights. It works with SUPERNOVA lights powered by a dynamo hub. It also works with SUPERNOVA lights powered directly by an e-bike system. In short, most of the SUPERNOVA headlight range is covered.

Because it takes 31.8 mm and 35 mm bars, it fits a wide range of cockpits. Mountain bike bars, gravel bars, touring bars and city e-bike bars all fall within that range. Two conditions apply before you order. First, the stem width must be up to 44 mm. Second, you need a 12 mm free clamping zone on the handlebar.

Some setups need a different part. The AIRSTREAM battery light is not compatible with this bracket. The special HBM light versions are not compatible either. Both have their own dedicated mounts. This is also not a phone, GPS or bike computer holder. It carries a front light and nothing else.

Technical Specifications

Why Choose the Supernova Universal HBM Mount?

The main difference from ordinary clamps is the hinged design. Standard closed clamps must be slid on from the bar end. That means pulling off grips and control units first. This clamp folds open and wraps around the bar in place. As a result, fitting takes far less time.

The second difference is coverage of two diameters. You do not have to pick between a 31.8 mm version and a 35 mm one. One part serves both, which helps if you swap bars or run more than one bike. Furthermore, it mounts without extra adapters, so the cockpit stays uncluttered.

Third, anodised aluminium replaces the plastic used on many light brackets. The matt anodised surface shrugs off scuffs from bar bags, straps and tools. Combined with the matt black finish, it keeps its look next to SUPERNOVA light housings.

Frequently Asked Questions

Will the Supernova Universal HBM mount fit a 35 mm handlebar?

• Yes. It is designed for 31.8 mm and 35 mm handlebar diameters.
• Other diameters fall outside this model’s range.

Can I use it with the AIRSTREAM light?

• No. The AIRSTREAM battery light has its own dedicated bracket.
• The special HBM light versions also need separate mounts.

Which lights does this bracket work with?

• It fits most SUPERNOVA front lights.
• Dynamo-powered and e-bike-powered SUPERNOVA models are both covered.

Do I need to remove my grips and levers?

• No. The hinged clamp opens and closes around the bar.
• Grips, shifters and brake levers can stay in place.

What clearance does my cockpit need?

• Your stem must be up to 44 mm wide.
• You also need 12 mm of free clamping space on the bar.

Can I fit it on either side of the handlebar?

• Yes. Left and right mounting are both possible.
• This lets you work around bells, computers and other accessories.

Does the mount include a light or battery?

• No. This model is the bracket only.
• It contains no LED, no battery and no electronics.

Are adapters or shims included?

• None are needed for 31.8 mm or 35 mm bars.
• The bracket clamps directly onto the handlebar.

In short, this is a compact aluminium bracket that puts a SUPERNOVA headlight exactly where you want it. One part covers 31.8 mm and 35 mm bars, mounts left or right, and goes on without stripping your cockpit. Just check your SUPERNOVA light model and your 44 mm stem and 12 mm clamping space before fitting.