WTB Wheels with SON Hubs

Gravel in depth

WTB KOM Tough TCS 2.0 CVX I 25 wheels on SON Delux Disc hubs

Our gravel pick from the WTB and SON parts we build with. The WTB KOM Tough TCS 2.0 CVX I 25 is a hooked aluminum rim, 25mm inside, 17.6mm deep, about 485 grams in 700c, sized for about 35 to 50mm tires. We lace it to SON Delux Disc hubs (front wheel) in 32 hole.

• Solid Strip in TCS 2.0. A strip sits in a recessed channel under the tubeless tape, which stops the tape sagging at the spoke holes. The tire then seals against a smooth, consistent surface.
• Bearings that need nothing from you. SON uses SKF ball bearings sealed on both sides and lubricated for life, which it says run many tens of thousands of kilometers with no adjustment. All SON hubs carry a five-year warranty.

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Mountain in depth

WTB KOM Tough TCS 2.0 CVX I 35 wheels on SON 28 Disc 6-bolt hubs

Our mountain pick from the WTB and SON parts we build with. The WTB KOM Tough TCS 2.0 CVX I 35 is a hooked aluminum rim, 35mm inside, 17.6mm deep, about 577 grams in 29 inch, sized for about 2.4 to 2.8 inch tires. We lace it to SON 28 Disc 6-bolt hubs (front wheel) in 32 hole.

• I-Beam support. An I-shaped wall inside the rim cavity adds radial and lateral rigidity, and KOM Tough rims use two of them. HTZ rims pair the I-Beam with walls WTB says are 25 to 30 percent thicker than its standard rims, for the extra weight of e-bikes.
• A generator tuned to how you ride. The SON 28 is SON's all-purpose choice, with strong output even at low speed, including for charging devices. The SONdelux is lighter with lower mechanical resistance for fast riders and small wheels, and it gives up some output below 20 km/h.

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Fat bike in depth

WTB KOM Light TCS I 76 wheels on SON 28 Fat Bike hubs

Our fat bike pick from the WTB and SON parts we build with. The WTB KOM Light TCS I 76 is a hooked aluminum rim, 76mm inside, 14.9mm deep, about 831 grams in 27.5 inch, sized for about 3.8 to 5 inch fat bike tires. We lace it to SON 28 Fat Bike hubs (front wheel) in 32 hole.

• CVX spoke bed. On the rims with CVX in the name, WTB's patented shape thickens the spoke bed where it is needed and removes material where it is not. It also gives the nipple head more contact with the rim to reduce stress at the spoke hole.
• Wider flanges on the Wide Body. The standard SONdelux has 50mm flange spacing and the wide body has 68mm, which SON says makes particularly stiff and stable wheels. The wider base gives the spokes a better angle to the rim.

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Questions about these builds

Which WTB rim should I build on SON hubs?

For gravel, the KOM Tough TCS 2.0 CVX I 25 (25mm inside) on SON Delux Disc hubs; for mountain, the KOM Tough TCS 2.0 CVX I 35 (35mm inside) on SON 28 Disc 6-bolt hubs; for fat bike, the KOM Light TCS I 76 (76mm inside) on SON 28 Fat Bike hubs. Each one opens the builder from its section above, and the cards below cover every WTB rim that fits a SON hub.

Mountain Bike

WTB rims on SON hubs for mountain bikes

Each card opens our custom wheel builder with the rim and hub for a front wheel already picked, on the SON hub our customers choose most with that rim. The builder offers every SON hub that fits, and you choose the colors, spokes and the rest.

WTB KOM Tough TCS 2.0 CVX I 35 on SON 28 Disc 6-bolt35mm inside · 17.6mm deep · 32 hole · hooked · front wheelStart building this pair →WTB KOM Tough TCS 2.0 CVX I 40 on SON 28 Disc 6-bolt40mm inside · 17.6mm deep · 32 hole · hooked · front wheelStart building this pair →WTB KOM Tough TCS 2.0 CVX I 30 on SON 28 Disc 6-bolt30mm inside · 18.1mm deep · 32 hole · hooked · front wheelStart building this pair →WTB KOM Light TCS 2.0 CVX I 30 on SON 28 Disc 6-bolt30mm inside · 17.75mm deep · 32 hole · hooked · front wheelStart building this pair →