Princeton CarbonWorks Peak 4550 Evolution II Wheelset — Ultra-Light Climbing Carbon Wheels

The Princeton CarbonWorks Peak 4550 Evolution II is an ultra-light carbon climbing wheelset built for road racing, fast climbing, precise descending, and all-around performance. Borrowing improvements from the Wake 6560 Evolution II, the Peak 4550 Evolution II features a wider 22mm internal rim width, 32mm max external width, a reduced 390g rim weight, and a lightest complete wheelset weight of 1200g.

Designed for riders searching for a lightweight climbing carbon wheelset that still delivers aerodynamic speed, stiffness, and confidence on descents, the Peak 4550 Evolution II is light and explosive on the climbs, composed and precise downhill, and fast and stable through the valleys. A hooked, hole-less, tubeless-ready tire bed allows clincher, tubed, or tubeless setups with no tubeless tape needed and no tire pressure restrictions.

Key Features — Peak 4550 Evolution II

• Category: Ultra-light climbing and all-around road racing carbon wheelset
• Rim weight: 390g
• Lightest wheelset weight: 1200g with Tactic Racing TR01 hubs
• Internal rim width: 22mm hook-to-hook
• External width: 32mm max
• Rim design: Hooked, clincher, tubeless-ready
• Tire bed: Hole-less tire bed — no tubeless tape required
• Tire compatibility: Clincher/tubed tires or tubeless tires
• Pressure compatibility: No tire pressure restrictions
• Impact resistance: Passes 120J impact testing
• Rim balancing: Pre-balanced rims matched to the included tubeless valves
• Spokes: Alpina Hyperlite
• Nipples: Sapim SecureLock Alloy
• Hub options: White Industries, DT Swiss, Chris King, Tactic Racing
• Paint options: 10 finishes — Matte Black, Gloss Black, Matte White, Gloss White, Gloss Gold, Gloss Chrome, Gloss Sand, Gloss Cobalt, Gloss Red, Gloss Chameleon
• Included: Tubeless valves and padded wheel bags

Ride Characteristics

• Exceptional handling for technical roads and race conditions
• Ultra-light climbing performance for steep gradients and mountain stages
• Explosive acceleration thanks to low rim and wheelset weight
• Composed descending with precise steering response
• Aerodynamic efficiency for speed on rolling and flat terrain
• Crosswind stability for confidence beyond the climbs

Wheelset Weights (Approx.)

Weights are approximate and may vary by configuration.

Peak 4550 Evolution II FAQ

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