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New WTB Ci31 takes carbon rims wider, rides city slicks into main brand

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Just after adding a couple wider options for their alloy rims, WTB has increased the width of their carbon offerings, too.

The new Ci31 gets its name from the material (C for Carbon) and the (i) internal width (31) in millimeters. Available now in 27.5 and 29er sizes, claimed weights are 455g and 490g, designed for tire widths ranging from  47mm to 72mm. They’re “floor pump tubeless friendly” and rated for XC, Trail and Enduro…


Pricing is $599.95 each, available on WTB’s website now.

Their Freedom brand is melding into WTB, which brings their classic looking ThickSlick urban tire under the WTB naming scheme. As such, the Race keeps its name, Sport becomes Comp, and the others (Elite and Deluxe) fuse into a new Flat Guard. Those will have three layers of various flat and puncture protection, the outer most simply being an extra (and extra thick) layer of rubber under the entire tire. They found that to be one of the most effective forms of protection, and it helps the tire last longer, too. Retail ranges from $29.95 to $36.95.

WTB.com

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Seraph
Seraph
7 years ago

Um guys, no one measures tires in millimeters anymore. I’m sure what you meant to say is that the rims will fit a tire ranging from 1.8 to 2.8 inches wide. This isn’t the early 90s.

someguy
someguy
7 years ago
Reply to  Seraph

What do you mean no one measures tires in mm anymore? not only is road/cross stuff measured in mm but more and more things are moving to metric as time goes on, not away from it.

The sooner the last 3 countries (and certain industries) to use imperial give up on it, the better off the world will be. There’s a reason science doesn’t bother with inches and feet.

lop
lop
7 years ago
Reply to  Seraph

Yeah, that metric system fad has clearly passed!

Marin
Marin
7 years ago

Those rims are heavy for carbon. My DT 471s weigh the same and cost about 8-9x less money.

They’re also very tough, work great as tubeless and are 30mm internal.

Marin
Marin
7 years ago
Reply to  Marin

Sorry, I meant 481’s.

TRi_
TRi_
7 years ago
Reply to  Marin

No one complains about ENVEs being heavy, and the 70thirty HV is actually about 10-15 grams heavier than this WTB.

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