

Rene Herse Switchback Hill TC 650B X 48
Rene Herse 650B x 48 Switchback Hill TC Tire
Conquer the wildest gravel and the smoothest tarmac—without compromise. The Rene Herse Switchback Hill was born on the legendary Oregon Outback route and named after its first iconic climb, delivering the speed, comfort, and grip adventurers and racers demand on mixed terrain. This is the world’s lightest and fastest ultra-wide 650B tire, designed for riders who chase wide-open exploration but refuse to sacrifice performance.
From loose gravel to miles of pavement, Switchback Hill’s supple construction rolls fast and grips hard, giving you extra security when the ride gets rough. Whether you’re lining up for an epic race or aiming for adventure, the Switchback Hill lets you keep up with the fastest—even when sidelong glances from skinny-tire riders come your way.
Why Choose Switchback Hill?
• Official winner: road.cc Buyer’s Guide “Best 650B road bike tyre” (2024)
• Ultra-wide 48mm tread delivers unmatched comfort and speed over rough and mixed surfaces
• Special tread profile: thick center for high mileage, thin supple shoulders for maximum grip and flex
• Tubeless-ready: Set up for ultimate puncture resistance and ride feel
Casing Options
• Standard: Supple, fast, and strong—great all-round value (Tan sidewalls, 460g)
• Extralight: Ultra-light and ultra-supple for next-level speed and comfort (Tan or black sidewalls, 420g)
• Endurance: Densely woven, reinforced with a protective belt for rugged conditions (Dark tan, 520g)
Technical Specifications
• Wheel size: 650B (ISO 48-584 mm)
• Actual width: ~49 mm (20 mm internal rim), ~50 mm (23 mm internal rim)
• Extralight casing: +1 mm width; Tubeless adds +0.5 mm
• Tubeless-compatible (recommended: Rene Herse Supple Sealant)
• Clincher, folding bead
• Maximum pressure: 55 psi (with tubes and tubeless)
• Recommended rim width: 17-30 mm internal, hookless or with hooks
• Made in Japan
Ideal For
• Gravel racing and adventure rides—balanced for 30% pavement, 70% mixed terrain
• Riders seeking lightweight speed and maximum comfort without sacrificing durability
• Anyone building a wheelset for tough, unpredictable roads with premium performance in mind
Setup Recommendations
• Tubeless: Use Rene Herse Supple Sealant for best results
• With tubes: Rene Herse TPU tubes recommended
Upgrade your ride with the tire trusted by explorers and racers on the world’s most demanding routes—choose the Switchback Hill for unmatched flotation, comfort, and speed.