After nearly a year of tantalizing hints, Specialized has finally unveiled its highly anticipated tubeless cotton tires, leaving cycling enthusiasts buzzing with excitement. But here’s where it gets controversial: is this innovation a game-changer, or just another addition to an already complex lineup? Let’s dive in.
Specialized has officially launched the tubeless-compatible version of its beloved Cotton tire, a move that’s been a long time coming. The Turbo Cotton and Cotton tires have been staples in the Specialized family for years, with the original clincher version famously helping Tony Martin clinch the World Time Trial Championship back in 2012. However, eagle-eyed fans might recall spotting these tires as early as June 2025 at the Critérium du Dauphiné, where they were sneakily showcased with logos carefully obscured. So, while the launch is new, the tires themselves have been in the works for quite some time.
And this is the part most people miss: Specialized’s tire range can feel overwhelming, even for seasoned cyclists. Let’s break it down. The original Turbo Cotton, with its iconic golden/yellow sidewalls, remains available in 24, 26, and 28mm sizes—but it’s strictly tube-only. There was also the HOTN (Hell of the North) version, designed for cobbled classics with added protection and tread, though it’s no longer listed on their site. Additionally, the 'Turbo Cotton Folding Racing Only' tire, available in 26 and 28mm, boasts a 320TPI cotton casing and T2/T5 compounds, but again, it’s tube-only.
Last year, at Opening Weekend, teams were spotted using the S-Works Turbo TLR tire, recognizable by its distinct sidewall color and hot patch logo. This tubeless-friendly model goes up to 30mm, but it seems riders were craving something more—a tubeless tire with the feel of cotton sidewalls in larger sizes. Enter the new Cotton TLR, featuring a polyester core wrapped in cotton, likely to better contain tubeless sealant.
Specialized boldly claims these tires 'combine the feel of cotton with the speed and precision of modern tubeless technology.' Interestingly, the press material reveals that initially, only six pairs existed, all in the hands of Bora Hansgrohe, who reportedly refused to part with them. Specialized’s solution? Make more and go into full production. While this makes for a great PR story, what caught my attention at Opening Weekend was a mysterious clear sealant applied to the outside of the Cotton tires on Red Bull Bora’s bikes. The team mechanic cited 'protection,' but the specifics remain unclear—something we’ll definitely be investigating further.
The new Cotton TLR tires will be available in 38, 30, and 32mm sizes, with claimed weights of 280, 290, and 320 grams, respectively. They feature a 320 TPI construction and Specialized’s Gripton T2/T5 compound, the same used in the S-Works Turbo TLR tire launched last year, though that model has a 120 TPI casing. Specialized also notes that the tires adhere to ISO standards for seamless tubeless setup, though they don’t specify which standards.
Now, here’s the controversial question: With so many options already available, does the Cotton TLR truly fill a gap, or is it just another niche product in an already crowded market? Let us know your thoughts in the comments.
As for the author, Tom, he’s no stranger to the cycling world. Joining Cyclingnews in late 2022 as a tech writer, he brings over a decade of experience as a qualified mechanic, having run an independent workshop for five years. Despite his English Literature degree, Tom’s passion lies in dissecting bikes, testing components, and sharing insights. From interviewing legends like Mathieu van der Poel and Tadej Pogačar to tackling the Roubaix Challenge on his rim-brake Cannondale SuperSix Evo, Tom’s hands-on approach ensures he knows exactly what makes a product tick. Whether it’s aero helmets, torque wrenches, or winter gear, his in-depth reviews are a treasure trove for cycling enthusiasts.
Before you comment, don’t forget to confirm your public display name. If you’re having trouble, simply log out and log back in—you’ll be prompted to set it up.
