
CHALLENGE Bobble Hat
Stay warm and race-ready with the Challenge Bobble Hat – 2026 Limited Edition. Designed for true Cyclocross fans, this premium beanie delivers comfort, warmth, and unmistakable Challenge style. Made from soft, durable acrylic, it’s perfect for keeping the chill away during long days at the Cyclocross course, whether you’re racing, wrenching, or cheering from the sidelines.
Produced in limited quantities, this exclusive 2026 edition won’t be around forever.
This hat will comfortably fit most adults (up to 61cm head circumference) and children as young as 5 years old.

CHALLENGE Bobble Hat
More Challenge Accessories
CHALLENGE Smart Tubeless Sealant
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













