Hutchinson tests prove it: Wide tyres on road bikes are faster

French tyre manufacturer Hutchinson is launching its Blackbird series in two additional widths. The new 32 and 34 mm versions complement the existing range and, according to the manufacturer, should be faster, more comfortable and offer better grip than narrower models. All three Blackbird variants are now available in the extended widths.

Hutchinson laboratory tests show advantages

TOUR has been emphasising the advantages of Wide road bike tyre pointed out. Independent laboratory tests also formed the basis for the development of the wider tyres for Hutchinson. The measurements compared identical tyres in 30 and 32 mm widths under the same conditions. The result: the 32 mm version achieved an average tyre width of Efficiency gain of at least 5 per cent. The tests also documented improvements in comfort and grip. According to Product Manager Martin Chuchu, Hutchinson not only wanted to follow market trends, but also validate them with measurable data.

The test results show that with identical air pressure, the shorter and rounder contact patch of wider tyres reduces the internal friction and deformation of the carcass. According to the measurements, this leads to lower Rolling resistance. The wider contact area provides more lateral support when cornering and keeps the contact area centred under the rim. Lower air pressures further enhance this effect.

Three technical factors for wider tyres

Hutchinson names three technical pillars that speak in favour of wider tyres. The first factor is rolling resistance: with the same tyre pressure, the shorter contact area produces less deformation in the material. The second aspect concerns grip and stability: the larger contact area ensures better lateral control when cornering. Lower air pressures, which allow wider tyres, reinforce this advantage. The third aspect is comfort: lower air pressure allows the tyre to work like a suspension element. It rolls over bumps instead of bouncing over them, thus maintaining forward motion.

According to the manufacturer, the aerodynamic properties are not primarily dependent on the tyre width. The decisive factors are compatibility and the seamless transition between tyre and rim width. Narrow tyres are not automatically more aerodynamic, says Hutchinson.

Hutchinson describes areas of application

While 28 mm is currently still widely used, Hutchinson also sees the future at 30 mm and wider. The manufacturer recommends 32 mm for performance-orientated riders. The 34 mm version is aimed at riders who train daily or ride on damaged and paved roads. Martin Chuchu describes the advantages: 'A wider tyre filters vibrations, damps and provides stability, especially in fast corners. The change may come as a surprise at first, but after the first impression there is no turning back. Wider tyres become a clear advantage: more stable, faster and safer.

Models and prices of the Blackbird series

• Blackbird Race: The tyre for maximum speed. Available in sizes 28, 30, 32 and 34 mm (RRP 79.99 euros >> available here).
• Blackbird: An all-round tyre which, according to the manufacturer, offers a service life of over 4,000 km. Available in black and Tan Wall in sizes 26, 28, 30, 32 and 34 mm (RRP 69.99 euros).
• Blackbird All Season: Tyres for wet and cold conditions. Available in black and Tan Wall in sizes 28, 30, 32 and 34 mm (RRP 69.99 euros).