Challenge – gravel grinder pro ot tlr 700x40c black / brown

The Gravel Grinder (GG) one of the best selling Gravel tread and has always been appreciated for its all around off-pavement use. However, there is always room for improvement so now, after almost a decade of success, GG tread design gets an upgrade.

The center diamond tread is appreciated by those wanting a consistently aggressive while still smooth rolling tire on all surfaces. It is not quite as fast rolling as the Strada Bianca or Getaway but we have not changed this great traction, braking and control feature. Where we have made big improvements is to enlarge and stiffen the outer and transition knobs so they have a bit more bite in corners and off-camber gravel, packed dirt and grass.

The enhancements will be noticed when getting on to sections of asphalt or real hard packed surfaces, again, especially in corners and off-camber. The transition knobs are bigger and stiffer and tapered to flow smoothly from the diamond center tread to the outer knobs. The outer knobs in turn are also tapered, slightly bigger and stiffer and flow smoothly from the transition knobs so you feel consistent, rock solid traction, braking and control in the fastest descents, on any terrain – asphalt, dirt, grass or the most wicked gravel.

GRAVEL GRINDER includes a full double ply 260TPI polyester casing that delivers maximum sidewall protection. While increasing sidewall durability, CORAZZAARMOR enhances stability by still retaining a very supple and comfortable ride. As an additional touch, a bead-to-bead latex-based inner coating further improves puncture protection while greatly reducing air pressure dissipation

The tire features the PPSGANZO puncture protection system. A highly flexible, tighter weave, multi-component puncture protection fabric placed between the tread and the casing. This PPS structure is light, more puncture resistant, and retains Challenge’s supple ride

The GRAVEL GRINDER also comes with the new gravel-specific tread of special higher durometer, natural rubber SMARTPLUS compound. While providing reduced wear and enhanced durability, the SMARTPLUS rubber compound still retains all of the natural rubber properties; shock-absorption, better control and reduced rolling resistance, all coming in really handy when riding multiple rough terrains.

Specifications

• Article code00534
• EAN8855627005349
• BrandChallenge
• ModelGRAVEL GRINDER
• Type of bikeGravel Bike
• Net weight (g)470
• Maximum pressure (PSI)44
• Maximum pressure (Bar)3
• Tire size (Inch)28
• Tire typeFolding tire
• TPI260
• SegmentGravel
• Tire size (French)700×40
• Colour nameTan
• TubelessYes
• TireWidth40
• Inner or outer tubeBicycle tire
• (ETRTO) Tire size40 – 622
• Color
  • Black
  • Brown

Downloads

Downloads

• Catalog Challenge 2020 EN.pdf (English)