Heidenau K67 4.00-18 64T TT

Heidenau K67 4.00-18 64T TT is a block-pattern tyre for the rear wheel of dual-sport and trials motorcycles, the heaviest in the K67 size range: 5.36 kg goes to work on traction and torque delivery.

What K67 gives you

• Rear axle only: Heidenau K67 in the 4.00-18 size is fitted exclusively to the rear wheel — the heaviest position in the K67 range, with a larger contact patch under acceleration load.
• Large block tread: Widely spaced blocks deliver traction on earth and grass without clogging solid.
• Tube-type build (TT): Heidenau K67 is fitted with a tube — the familiar setup for spoked rims on dual-sport and trials bikes.
• Stable off the throttle: On tarmac, Heidenau K67 doesn't break loose under load and holds its line.

Rubber and carcass

In the 4.00-18 size, Heidenau K67 comes without an M+S marking and without a reinforced (Reinf) carcass — the build works for traction rather than deep mud. The block pattern puts power down on dirt and holds less mud thanks to the gaps between the blocks, and on tarmac the tyre keeps predictable behaviour under acceleration.

Which bikes usually take the 4.00-18 size

Heidenau K67 in the 4.00-18 size (TT, rear) is often seen as the rear partner to a 2.75-21 front on modern trials bikes — TRS One RR, Beta Evo, GasGas TXT. The same 4.00-18 size, on both axles, is fitted to the Ural CT and Ural Electric. Treat this as a guide to size, not a guarantee of fitment — check the axle and mounting against your bike's manual.

Where K67 is not the right choice

The rear K67 4.00-18 is built for traction on mixed roads, not for competition trials or hard enduro — riders there swap tyres to match the course, and need a dedicated off-road tyre. For fast road bikes, where clean tarmac matters more, road models with a higher speed rating are a better fit.

Who it suits

Heidenau K67 4.00-18 64T TT suits anyone running a dual-sport or trials bike every day who wants traction on the rear wheel sorted: town, forest tracks, light dirt. The same old-school tread is a big part of why builders reach for K67 on scrambler and custom projects based on old enduros — it earns its place on looks as well as grip. Choose your size and order K67 with delivery across Kazakhstan — browse the full Heidenau adventure tyre catalogue.