Thanks to the latest advancements in our carbon layup process, 34|37 SL wheels are lighter than ever without sacrificing any strength. Designed for Team Visma Lease-a-Bike, these wheels are made to lead the peloton up the world’s steepest, most unrelenting climbs.
Made for efforts like Jonas Vingegaard’s assault on Bola del Mundo in the 2025 Vuelta a España.
Our SL wheels come with carbon spokes and are only available together with our lightest hubsets.
All Reserve wheels are built around a simple principle: we have your back. That means no rider weight limits, an industry-leading Lifetime Warranty, safe semi-hooked rim designs and comprehensive customer service.
We are riders like you and we know that breaking a wheel or damaging a Fillmore Valve can be a frustrating experience, especially when it’s keeping you from getting out on your bike. Our promise to you is that we will do our best to get you back riding as quickly as possible. It’s the reason we have made ourselves available through email, chat or by scheduling a video call. We want to be here when you need us most.
Maximum Tire Pressure: 100 psi (6.9 bar), or if lower, the maximum pressure as listed by the tire manufacturer on the side of the tire.
Shipping and Returns
All wheelsets ship for £5.00 and orders under £145 ship for £4.50. We aim to ship orders within 24–48 hours on business days. Once shipped, your order should arrive within 3–5 business days. Orders ship with duties paid, so there are no surprise charges at delivery. New, unridden products can be returned within 60 days. Learn more on our Shipping & Returns page.
These wheels are built to climb, but climbing isn’t just about weight. Our mixed rim profile maximizes aerodynamic efficiency, while reinforced carbon spoke holes maintain stiffness and strength. Engineered to win in the mountains.
Lighter & Stronger
Built to be as light as possible—without trading away strength, stiffness, or durability. Carbon spokes, purpose-built hubs, and an advanced SL rim layup work together as a system. Less weight. No shortcuts. Pure performance.
Turbulent Aero
Reserve’s aerodynamic protocol uses real-world wind data to develop wheels that are both faster and more stable on the road, not just the wind tunnel. More speed. More control. Turbulent Aero.