WTB HTZ i35 Rear Wheel 27.5" 12x148mm 6-Bolt Black Micro Spline 32H

20% Thicker, Everywhere
HTZ rims boast an increased wall thickness of 20% over our KOM Tough enduro rims in order to ensure they're capable of withstanding the additional forces of a modern e-bike. Simply put, more material results in a more durable rim.

I-Beam Support
Vertical support within the inner rim cavity that drastically increases the strength and rigidity of our toughest rims. The additional reinforcement counteracts spoke loads and provides lateral stiffness, which is increasingly important for e-bike rims. The I-Beam on the HTZ is thicker than any other WTB rim.

Proudly Overbuilt
HTZ e-bike rims are proudly overbuilt to provide an incredibly durable alloy rim at an affordable price. They're available in five different inner widths ranging from 23mm to 40mm, making them perfect for a wide range of bikes ranging from e-assist gravel bikes to dual-crown DH bikes that no longer need a truck to be shuttled.

TCS Solid Strip
Durable nylon strip that lies between the rim and tubeless tape to prevent the tape from pushing into the spoke holes and ensures a smooth interface between the tire and rim. The smooth surface makes it easier to mount a tire by preventing air from escaping around the bead at each indent during inflation. Solid Strip also protects the airtight system from puncture in the case of a broken spoke.

35mm Inner Rim Width
Rims with an inner rim width of 35-40mm are designed for tire widths ranging from 2.6-3.0". Pairing a wider rim to wider tires ensures optimal sidewall support and tire volume, which allows riders to run lower air pressure and fully benefit from the advantages of 2.6-3.0" tires. Preference will determine which of the two width is best for you, but take into account that the 35mm width will provide a rounded profile while the 40mm width will provide a flatter profile.

What is an "E-Bike" Rim?
HTZ isn't some gimmick where a company slaps the e-bike moniker on a downhill component in hopes of riding the e-bike sales wave. We, and our friends, were simply tearing through rims as we lost track of the laps on our e-bikes. There's no denying that the additional weight of, and resulting forces exerted by, e-bikes are substantially more than traditional analog bikes. We needed rims that prioritized durability first-and-foremost with weight being so unimportant that we didn't even set a weight target. We simply needed rims that wouldn't let up under any circumstances on any bike. In the end, HTZ is the most bombproof rim you can buy for your e-bike.