Heidenau K34 Arrow 180/65B16 81H RF TL

Heidenau K34 Arrow 180/65B16 81H is the rear size in a cruiser range where the classic K34 tread has been deliberately reworked for modern handling. The pattern matches the front K34 Arrow, but the contact patch is wider: 180 mm takes both the engine's torque and the weight of bike and passenger. K34 Arrow is engineered for large cruisers and choppers among other machines.

Key features

• Drive and braking: the wide 180 mm contact patch puts engine torque down without spinning up under acceleration and holds the bike when braking with a loaded rack.
• Water clearance: the arrow shape of the grooves channels water out from under the wide contact patch — exactly where a plain wide tyre loses grip first.
• Reinforced carcass: the RF marking on the part number stands for reinforced — the carcass is rated for the load on a heavy motorcycle's rear axle.
• 81 load index: the rear wheel carries more weight than the front, so Heidenau K34 Arrow 180/65B16 rates higher than the 73 of the front 130/90B16 in this pairing.
• Speed rating: the H index permits riding up to 210 km/h.
• Silhouette: 180 mm visually broadens the rear wheel — the look that makes modern cruisers such as the BMW R18 or Indian Chief recognisable.

Tread and construction

Heidenau K34 Arrow 180/65B16 is built on a bias-ply carcass in reinforced form — that is what the RF marking on the part number denotes. Aramid materials are used in the load-bearing structure, and they account for stability at speed and accurate feedback. The tread is developed from the classic K34 block pattern, with the arrow shape of the grooves working on water clearance. The tyre is tubeless (TL) and weighs 8.97 kg. The construction damps vibration, so the bike settles down on broken tarmac.

Front or rear fitment

Heidenau K34 Arrow is approved for both front and rear wheels — the tread has no specified direction of rotation. In 180/65B16 it goes on the rear: this is the rear half of the pairing with the front K34 Arrow 130/90B16. Both sizes in the range are gathered on the Heidenau K34 Arrow page.

Which motorcycles use the 180/65B16 size

The rear 180/65B16, paired with the front Heidenau K34 Arrow 130/90B16, is used on a number of modern cruisers, including the BMW R18 Classic, Indian Chief Bobber, Super Chief and Super Chief Limited, and select versions of the Harley-Davidson Road King Classic. Treat this as a guide to the class of bike rather than a guarantee of fitment — check the exact size and permitted rim against your motorcycle's manual before buying.

Where K34 Arrow isn't the right fit

Heidenau K34 Arrow remains a road tyre for tarmac: the wide profile works for grip and stability on the road, whereas off the tarmac that width gets in the way. For gravel roads and mixed routes, Heidenau's range includes separate adventure and off-road models.

Application

Heidenau K34 Arrow 180/65B16 is built for riders who get on the bike to take the road in fully and stop watching the clock. A classic rear-wheel silhouette, stability under engine torque, and carcass reserve for a long ride two-up. Pair it with the front K34 Arrow 130/90B16 and order the set with delivery across Kazakhstan — the full Heidenau classic tyre range is in the catalogue.