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The multiple world champion tire in cyclocross
Specially developed profile and the right choice for professionals and frequent drivers who are looking for a tire that is as versatile as possible. The optimal all-rounder with unbelievable grip and at the same time very low rolling resistance. Equipped with Puncture Protection System (PPS). Finally also available as a tubeless (TLR) version.
highlights
- Vulcanized Tubeless Ready (VTLR)
- Puncture Protection System (PPS) puncture protection
- UCI compliant
Technical specification
specification | description |
---|---|
area of application | cyclocross |
Type | folding tire |
Size ETRTO | 33-622 |
size inches | 700x33C |
model line | Race Series (VTLR) |
Compound / rubber mixture | Vulcanized compound |
carcass | Nylon Superlight |
Tubeless ready | Yes |
E-bike approval | no |
TPI / EPI | 120 TPI |
Recommended tire pressure | Tire pressure 1.8-2.5 bar (max. 5) |
colour | black Black |
weight | 390g |
technologies
Vulcanized Tubeless Ready (V-TLR)
The highest level of performance offered by car, truck and motorcycle tire manufacturers is a vulcanized tubeless system. While cars and trucks are old technologies, bicycles are relatively new and didn't even have an internationally recognized design standard (ISO or ETRTO) until recently.
By eliminating the tube it is possible to reduce weight and theoretically create a softer, more comfortable, more efficient tire system with lower rolling resistance by running lower tire pressures. The reality is a bit different as extra rubber needed to seal the air at lower pressures tends to defeat the concept of "high performance" tubeless.
A tubeless system has a super tight fit on the rim to maintain the seal and can be ridden without sealant. Most tubeless tires are actually Tubeless Ready (TLR), can be run tubeless by adding a sealant, but can also be run with an inner tube when fitted and sold to allow for test rides and a quick sale.
Challenge has started introducing Vulcanized Tubeless Ready (V-TR) tires as the ISO and ETRTO standards for proper fitting of V-TLR tires and rims have finally been finalized. These standards ensure your safety and your ability to install and service the tires with hand tools
Puncture Protection System (PPS)
Additional layers of high-strength fabric between the carcass and tire to reduce the risk of punctures
scope of delivery
- 1 x Challenge Grifo V-TLR folding tire (see item description for details)