Continental Sharpens Its Gravel Lineup With Faster, More Agile Dubnital 50 mm
- By TT News
- April 17, 2026
Continental has responded to the changing landscape of modern gravel riding by adding a new 50 mm version of its Dubnital tyre to its product range. This tyre model first proved itself in fast paced cross country racing, where it became known for combining impressive rolling speed with dependable handling. Before this launch, gravel riders had already embraced the larger 55 mm Dubnital, and this slimmer 50 mm option now allows Continental to better serve those competing on increasingly aggressive and technical gravel courses.
Designed for surfaces ranging from dry to damp, including rocky trails, hardpack and medium loose dirt, the Dubnital 50 mm features a carefully arranged tread. Its smooth centre section keeps straight line riding efficient, while the raised shoulder knobs dig in to deliver strong braking traction and steady cornering when the ground turns rough or unpredictable. The tyre also incorporates Continental’s latest Tubeless Ready and hookless compatible designs, ensuring it works properly with current wheel systems without sacrificing the control or performance the Dubnital name stands for.


As gravel race routes become faster, rougher and more complex, this new 50 mm tyre is quickly becoming a top choice for cyclists seeking a genuine balance between speed, stability and toughness. For cross country and down country riding, the Dubnital remains a quick option for light mixed terrain and hardpack surfaces. But for gravel applications specifically, the 50 mm size unlocks a more aggressive setup, giving riders the confidence to handle tougher courses and unpredictable trail conditions.
Rosa Klöser, 2024 Life Time UNBOUND Gravel 200 winner and Continental Tires ambassador, said, “For me, the Dubnital 50 mm is one of the most anticipated tyres in gravel right now. Considering the clearance of most gravel bikes, adding a 50 mm Dubnital will make a lot of gravel fans very happy – including myself. The tyre inspires a huge amount of confidence, especially in corners where you can really maximise your speed thanks to its incredible grip and braking control. But what stands out for me is its versatility – it’s not just for technical gravel! It’s a fast, reliable all-rounder for riders who want extra comfort, grip and durability without sacrificing speed.”
Alexander Haenke, MTB and Gravel Product Manager, Continental Tires, said, “With the introduction of the Dubnital 50 mm, we are removing the boundaries between mountain biking and gravel once and for all. The Dubnital already surpassed its predecessor, the Race King, and now confidently straddles the line between the gravel and MTB segments. In this 50 mm dimension, it hits a distinct sweet spot for technically demanding off‑road races such as Traka, The Rift or Badlands. The Dubnital 50 mm delivers its well‑proven off‑road performance paired with low rolling resistance, high puncture protection and low weight — a trend born in the racing scene, now available to everyone.”
Kuraray America Marks National STEM Day With San Jacinto College Event
- By TT News
- November 13, 2026
Kuraray America, Inc. marked National STEM Day on 8 November by spotlighting a community educational event that brought together 15 of its volunteers and students from the Houston Japanese Supplementary School at San Jacinto College for a day of hands-on exploration and discovery.
Participants engaged in activities illustrating how science, technology, engineering and mathematics (STEM) converge in chemical manufacturing. Experiments with superabsorbent polymer beads explored chemistry and material properties, while a tour of the college’s facilities introduced industrial equipment. Students also learned about water filtration and distillation processes and how mathematical concepts underpin scientific and engineering applications.

One student showed particular interest in the distillation tower, linking the experience to the Kuraray Group’s contributions to everyday life and its mission of achieving for people and the planet what no one else can. The event also benefited KAI volunteers, who shared technical knowledge, exchanged perspectives and learned alongside potential future scientists and engineers.

Kuraray America thanked Reiko Fuwa and Tomohiro Tani for coordinating the visit, Hans Vandommele for sharing his expertise and all 15 KAI volunteers. The company also expressed appreciation to San Jacinto College for facility access and to the Houston Japanese Supplementary School students for their curiosity, enthusiasm and thoughtful questions.


Liberty Tire Recycling Showcases Recycling Leadership At SEMA 2026
- By TT News
- November 12, 2026
Liberty Tire Recycling attended the 2026 SEMA Show in Las Vegas, held from 3–6 November at the Las Vegas Convention Center. The automotive aftermarket event, one of the industry's largest, drew over 160,000 attendees from the automotive, tyre and transportation sectors to review new products, technologies and business opportunities.
The Lakin Tire brand, a consistent SEMA exhibitor, once again used the show to reinforce industry relationships and present Liberty's tyre collection, recycling and sustainable resource management capabilities. Personnel from Grade/Used Tires, Commercial Truck Tires, Metals, Recycling and Collection, together with corporate and regional leadership, met customers, suppliers and industry professionals from around the world.

The booth received existing and prospective customers from numerous tyre and automotive segments during the week. Costco Wholesale Corporate Office, United Tires and UTU Wholesale were among the organisations that stopped by to examine Liberty Tire's products, services and nationwide reach. The company viewed the event as an effective forum for monitoring emerging market trends and demonstrating its position in recycling and sustainability, alongside its focus on innovation, workforce development and circular economy principles.
A memorable moment came when a high school shop teacher and students, attending through a special educator programme, toured the booth to learn about tyre recycling and industry operations. Liberty team members provided industry insights, outlined career pathways and acknowledged educators' contribution to developing future skilled trades professionals, supplying tyre inflation gauges for classroom use.
Laufenn G Fit 4S Earns ‘Good’ Rating In Auto Bild Allrad All-Season SUV Tyre Test
- By TT News
- November 12, 2026
Laufenn, Hankook's associate brand, earned a ‘Good’ ratingwith an overall score of 2.2 for its G Fit 4S in the Auto Bild Allrad all-season SUV tyre test published on 8 October 2026 (issue 41). The tyre competed credibly against 11 rivals from established premium marques, finishing competitively in a 12-strong field.
Wet handling proved a particular strength, with the G Fit 4S collecting the second-highest rating shared with other models. Aquaplaning resistance also impressed, as the tyre held its line until stability began to fade at roughly 100 kmph (62 mph). In snow, it recorded the third-shortest braking distance, matching two other contenders.
Testing spanned snow, wet and dry disciplines, each weighted equally in the final ranking, with a third-generation MINI Countryman serving as the test vehicle. Snow assessments were carried out in New Zealand, while European venues hosted the wet and dry evaluations. The jury's conclusion underscored Laufenn's value-focused positioning, finding the G Fit 4S a solid option for cost-conscious buyers.
Tyres Europe Backs International Standards As Basis For Tyre Recyclability Assessment
- By TT News
- November 12, 2026
Tyres Europe has underscored that tyres qualify as fully recyclable under ISO 22628:2002 and UN Regulation No. 133, describing the established methodology as a robust foundation for assessing tyre recyclability. The organisation recently set out its position on the matter.
The distinction between recyclability and actual recycling rates is central to the group's argument. Recyclability refers to the technical potential of a product and its materials to be recycled, while the real rate hinges on treatment capacity and demand for secondary raw materials. Regulatory frameworks should therefore separate the two concepts clearly and align with an internationally recognised standard.
Tyres consist of rubber compounds, chemical additives and reinforcing textile and steel cords, and at end of life they are separated into rubber, textile and steel fractions, all of which existing mechanical or chemical routes can recycle. Mechanical processing yields rubber granules and powders usable as secondary raw materials across many applications, recovered textiles can be further processed and valorised, and cleaned recovered steel can re-enter metal recycling and steelmaking.
Tyres Europe pledged continued cooperation with policymakers and value-chain partners to strengthen circularity and maximise recovery of valuable tyre materials in Europe, with the full paper available on its website.

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