Heidenau K81 140/70-14 68S RF TL

Heidenau K81 140/70-14 68S RF TL is a sport-touring tyre for maxi-scooters with a reinforced casing (Reinf.): it holds its line through a run of corners and handles the torque of powerful engines without wearing out early. In the catalogue this size is rear-only — the rear position in the K81 line-up.

Key properties of K81

• Stability under power: On the driven rear wheel, Heidenau K81 holds its line under engine and transmission load and stays stable coming out of a corner.
• Torque without uneven wear: Heidenau K81's dense tread pattern absorbs the engine's full torque — here, on the driven wheel rather than the front — without wearing unevenly under acceleration.
• Comfort from a stiff casing: Heidenau K81's stiff casing and extra rubber volume give it a high level of comfort, whether you're touring or riding harder.
• Grip on any surface: Heidenau K81's rubber compound grips the tarmac and brakes consistently in both dry and wet conditions.

Tread and construction

140/70-14 has a different build to the rest of the range: Heidenau K81 comes with a reinforced casing (RF/Reinf.) in tubeless (TL) form — extra strength for the load on the rear wheel, where a maxi-scooter's engine and transmission weight sits. There's no M+S marking here either — this is a summer road size.

Which machines the 140/70-14 size usually goes on

Heidenau K81 in 140/70-14 (TL, rear) often turns up on the rear wheel of maxi-scooters such as the Piaggio MP3 300/530 — including the three-wheeled MP3 layout — and the Sym ADX 300, where the front normally runs a narrower size. Treat this as a guide to the class of machine rather than a guarantee of fitment — check the exact size and axle against your scooter's manual.

Honestly, where K81 has limits

The reinforced casing on this size is about rear-wheel load, not about dirt: K81 carries no M+S marking, and for snow and ice Heidenau has a separate M+S Snowtex range for scooters. 14-inch wheels are the mid-to-large maxi-scooter segment; for compact models on 8–12-inch wheels, the range has the K61 and K80 SR.

Who it suits

Heidenau K81 140/70-14 68S RF TL is a rear wheel for owners of heavy or three-wheeled maxi-scooters who need the extra strength in the casing. Shipping across Kazakhstan and help matching your pair of sizes — in the catalogue of Heidenau road tyres for scooters.