Cervelo Caledonia Shimano 105 Road Bike 2026  Now 53 grams lighter than the previous generation, the Caledonia 2026 road bike retains the clean, aerodynamic lines and finely tuned carbon layup you expect from Cervélo. It’s quick enough for spirited chaingangs and weekend race simulations, yet stable and confidence-inspiring over rougher roads. Hidden cables keep the aesthetic sleek and the airflow smooth, this is a bike that looks fast because it is fast. Real-World Tyre Clearance for British Roads Clearance for 36mm tyres (or 34mm with mudguards) transforms the Caledonia into a true all-season machine. Run wider rubber for winter endurance rides, broken tarmac and light gravel, or switch to faster 28-30mm tyres for summer sportives. The updated geometry is optimised around 32mm tyres, delivering a smooth, planted ride without sacrificing responsiveness. It’s built for chipseal, potholes and unpredictable weather, in other words, real roads. Ride-All-Day Geometry With a 1013mm wheelbase, 415mm chainstays and a 72° head angle, the Caledonia strikes the ideal balance between agility and stability. It feels composed on long descents, predictable in crosswinds and comfortable over five-hour efforts. Whether you’re chasing a new sportive PB or simply building base miles, this endurance-focused geometry keeps you fresher for longer. Easy to Live With, Easy to Maintain Unlike fully internal systems that require a brake bleed for a simple stem swap, the Caledonia features mechanic-friendly cable routing that supports both fully integrated and semi-external setups. The threaded T47A bottom bracket simplifies servicing and ensures long-term reliability, ideal for home mechanics and year-round riders. In short, this is a performance road bike without the faff: lighter, more capable and more versatile than ever. If you’re looking for one bike to cover fast group rides, fondos, commuting miles and winter training, the Cervélo Caledonia isn’t just a good choice, it’s the smart one.