Rim brakes live on at Princeton

Princeton CarbonWorks announces their all-new PEAK 4550, developed in conjunction with the top cyclists in the world; a lighter, stiffer, stronger, and more aerodynamic solution directly targeted at world tour and grand tour racing.

Available in every configuration, (tubular, tubeless-ready clincher, rim and disk brake) the PEAK 4550 set weighs as little as 1071g in tubular rim brake guise, with standard tubeless-ready clincher versions weighing 1297g for rim brake and 1348g for disc brake.

Check out our First Ride of the Princeton Grit 4540


Development priorities were to create an all-around race-ready wheel with exceptional aerodynamic characteristics and the strength and stiffness to transfer high wattages to the ground. The performance characteristics of grand tour riding are perhaps the most difficult to synthesize in a single wheelset. Riders need a wheelset that is light and responsive for the climbs. On the descents, they need predictable and sharp handling. In the valleys, the wheelset needs to be aerodynamic and impervious to crosswinds. And above all of that, the wheels need to hold up to thousands of kilometers of full gas racing.

PCW’s standard non-drilled tire bed facilitates a stiffer outer rim and transfers some material away from the tire bed to other critical areas in the wheel, helping to keep wheel weight low while maintaining high stiffness values. A limited Launch Edition will be available starting June 26th; standard black graphics and custom options and hub choices will become available later in 2021.


Internal width (hook to hook): 18.5mm
External width (max): 26mm
Launch Edition Hubs: Carbon Ti (16/24 Rim Brake, 24/24 Disc Brake)
Spokes: Sapim CX-Ray
Nipples: Sapim SecureLock Alloy


Tubular rim brake: 1071 grams
Rim brake clincher: 1297 grams
Disc brake clincher: 1348 grams


The launch edition is available starting now, until July 31 for $3400. This includes Carbon-Ti hubs and limited edition ‘launch’ graphics.

Starting Aug. 1, the Peak 4550 will be available for $3100 with Tune or White Industry hubs. Custom builds with other hub options will be available starting Aug 1st.

For more info head to

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