
DUNE Ultra - Handmade Tubular
The Dune is the Belgian's secret skill-building tire. Like the Chicane, this tire is a super fast rolling sand tire that also works incredibly well on frozen courses. The small shoulder knobs are intended for riders with great bike handling skills.
This handmade SETA EXTRA (Ultra) tubular uses an ultra-compliant sealed Silk 1000TPI casing for unmatched performance with our SmartSoft compound for ultra-low rolling resistance and ultra-traction. A seamless latex inner tube improves grip at lower pressures.
Remember you may need to use Challenge Presta Valve Extenders when mounting tubulars on deep-profile rims.

DUNE Ultra - Handmade Tubular
More ULTRA Series CX Tires
GRIFO Ultra - Handmade Tubular
DUNE Ultra - Handmade Tubular
Key Features
CONSTRUCTION: Handmade
Challenge handmade tires combine comfort, performance, and grip in a way other tires can't match. Our handmade tires are assembled step-by-step by experienced craftspeople. High quality natural glues and latex coatings are applied to ultra-supple casing materials like silk, cotton, or polyester. The result is a small-batch tire with a ride feel that is simply on a different level.
SERIES: ULTRA
Best of the Best – The extreme expense of silk (seta, in Italian) construction means ULTRA series tires are primarily for World Championship and Olympic competitions.
CASING: Silk 1000TPI
Silk is a strong, soft, natural fiber with thread counts over 1000tpi. The ability of our compliant sealed-silk tires to conform to even the smallest surface feature gives them great traction and very low rolling resistance.
COMPOUND: SMARTsoft
A more compliant rubber compound fine-tuned by Cyclocross World Champions for a smooth ride and maximum grip. SMARTsoft is also used on the special tires we developed with British Cycling for their Track program.
PUNCTURE PROTECTION: PPS
Our Puncture Protection System (PPS) is a tough, tightly-woven fabric placed between the tread and casing to increase puncture resistance.
Technologies
Challenge Tire FAQs
Selecting a Road Tire
Which is the best blend of speed, rolling resistance and durability for my riding? You can learn more about our Road Line here: Selecting a Challenge Road Tire
Selecting a Gravel Tire
Which model is best for the terrain you ride? You can learn more about our Gravel Line here: Selecting a Challenge Gravel Tire
Selecting a Cyclocross Tire
Which tire is best in sand, snow or mud? You can learn more about our Cyclocross Line here: Selecting a Challenge CX Tire
Are Challenge TLR Tires Compatible with Hookless Rims?
The following Challenge TLR tires are compatible with ISO/ETRTO-compliant hookless rims:
• Getaway RACE Series TLR tires
• All Handmade TLR tires in sizes 33–45C
• All Criterium RS TLR sizes
Are Challenge Tires Difficult to Install?
A tight fitting TLR tire is critical for holding air and keeping the tire on the rim. You can find mounting videos for TLR and Tubulars here: Mounting Instructions