Magura 180 mm Brake Disc – Dovetail Interlink Rotor for E-Bikes and MTB

The Magura brake disc Ø 180 mm is a hydraulic disc brake rotor built and optimised for electric vehicles. It fits E-MTB, S-Pedelec, city, gravel and MTB models. In addition, it works for Sur-Ron and Talaria brake upgrades with the correct adapters, provided the system runs a 180 mm rotor.

Magura, the German manufacturer of hydraulic brakes and components, builds this rotor around its patented Dovetail Interlink Technology. The outer friction ring and the inner carrier ring lock into each other with a dovetail joint. As a result, the two rings behave as one rigid unit rather than two separate parts.

That rigidity matters under load. Braking stays consistent even at high temperatures and under heavy demand, while transmission losses drop. Mounting follows the 6-bolt (IS) standard, or the version you select.

Key Benefits

• Patented Dovetail Interlink joint – the outer and inner rings mechanically lock into one another.
• Stiffness against vibration – noticeably less rotor pumping on long descents.
• High heat resistance – reduced brake fade caused by overheating.
• Steadier modulation – braking force stays easy to meter through an entire descent.
• Built for e-platforms – engineered for greater mass and higher speeds.
• Strong initial bite – a clean response from the first pull of the lever.
• Lower transmission losses – the rigid structure passes braking force through more precisely.
• Longer service life – better heat management protects both the rotor and the pads.

Who Is This Rotor For?

This disc suits electric mountain bikes (E-MTB), S-Pedelec speed e-bikes and city bikes. Furthermore, it fits gravel bikes and classic MTB builds. Although the design targets e-platforms, it performs equally well on bikes without electric assistance.

A separate use case covers Sur-Ron and Talaria brake upgrades on electric motorcycles. These builds require matching adapters, and the system must be designed for a 180 mm rotor. Check your caliper mount and adapter stack before ordering.

Enduro-style riding, long descents and loaded touring all benefit from this rotor. It also serves riders replacing a worn disc, or anyone choosing a stiffer option for a heavier e-bike.

What’s in the Box

• Brake disc Ø 180 mm – 1 pc.

Technical Specifications

Why Choose the Magura 180 mm Brake Disc?

The main difference from a conventional one-piece rotor is the two-part construction with the patented Dovetail Interlink joint. Instead of a single homogeneous disc, two rings lock together on a dovetail principle. Consequently, the structure is stiffer than a plain solid disc.

Secondly, this rotor is calculated from the outset for greater mass and higher speeds. An electric bike brakes harder than a classic one, so heat becomes the central problem. Better heat management therefore reduces fade and noise during intensive braking.

Thirdly, the disc works with all three Magura pad compounds. You can match the pad to the season and conditions: organic for quiet riding, metallic for heavier loads. Semi-metallic sits between the two.

Frequently Asked Questions

Does the Magura 180 mm brake disc fit a regular bike?

• Yes, the rotor works on classic bikes without electric assistance.
• The construction is optimised for e-platforms, but nothing prevents standard use.
• Gravel and MTB builds are both covered.

Can I use this rotor on a Sur-Ron or Talaria?

• Yes, for brake upgrades with the appropriate adapters.
• The braking system must be designed to run a 180 mm rotor.
• Confirm your caliper mount and adapter spacing beforehand.

Which brake pads are compatible?

• All three Magura disc brake pad compounds work with this rotor.
• Organic pads run quietly and suit lighter, everyday use.
• Metallic pads handle heavier loads and sustained braking.

What is Dovetail Interlink Technology?

• It is a patented joint between the outer friction ring and the inner carrier ring.
• The two rings interlock mechanically on a dovetail principle.
• The result is a single rigid system with lower transmission losses.

How does this rotor mount to the hub?

• Mounting uses the 6-bolt (IS) standard, or the selected version.
• Check that your hub carries a 6-bolt disc interface.
• Torque the bolts to your hub manufacturer’s specification.

Is it suitable for an S-Pedelec?

• Yes, S-Pedelec use is one of the intended applications.
• The design accounts for greater mass and higher speeds.
• Heat management supports repeated hard braking at speed.

Will it reduce brake fade on long descents?

• High heat resistance limits the drop in braking efficiency from overheating.
• The stiff two-ring structure reduces rotor pumping.
• Modulation stays steady throughout the descent.

Riders running heavier e-bikes gain the most from this rotor, though gravel and MTB builds benefit too. Choose the Ø 180 mm size when your caliper mount and adapter setup call for it, then pair it with the Magura pad compound that matches your terrain.