The Proterra Light i27 wheel is suitable for daily use on trails. It features a 27mm internal rim width, offering optimal air volume and nipple profile for tires ranging from 2.3" to 2.5". The open rim profile reduces weight where it is not needed. The versatile six-tooth hub provides 5 degrees of engagement to tackle technical climbs and offers immediate power during turns.

The rims are designed to pair with high-quality hubs, which further enhance the performance of this lightweight and reliable wheelset. The Frequency hubs feature a 6-tooth low-friction design that alternates between two groups of three teeth, providing an immediate 5-degree engagement. A durable nylon strip is placed between the rim and the tubeless tape, preventing pressure on spoke holes and ensuring a smooth connection between tire and rim.

The smooth surface facilitates tire installation, preventing air loss around the bead during seating. The Solid Strip also protects the airtight system from punctures in case of broken spokes. The Proterra wheels provide long-lasting reliability, thanks to the three-cross spoke design. Riders who regularly use 2.3-2.5" tires often choose rims with a 27mm internal width for their balance between sidewall support and lightweight performance. Ideal for trial riders who prefer climbs or XC racers who favor descents.

Proterra wheels are handmade at the wheel factory. The build team applies careful attention to detail during tensioning and assembling each Proterra. The TCS (Tubeless Compatible System) design is the standardized rim/tire system for tubeless tires, designed to meet international ETRTO standards, offering unparalleled tubeless performance and reliability. All Proterra wheels come tubeless-ready with Solid Strip, TCS tubeless tape, and pre-installed black aluminum valves.

Proterra rims are made from 6069 aluminum alloy for optimal strength, with a bead-peen finish and durable decals. Extensive testing has shown that other 6000 series alloys are less impact-resistant, while harder 7000 series alloys provide a stiffer ride and tend to increase pinch-flat levels. All this ensures that WTB Proterra wheels deliver the enjoyment expected on the first ride and the durability required for every ride.