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WTB's original 27.5in Riddler may be the ideal trail tire: cornering grip, straightaway speed, and a generous girth that provides comfort and grip without getting top floppy. The Riddler TCS Light Fast Clincher Tire imports those same characteristics to the gravel bike world. Its 45mm belly eats up gravel and washboard abuse while the molars on the shoulders bite into sloughy stuff and the low-profile, tightly packed center knobs maintain grippy speed across graded gravel. The compound follows suit, with WTB's dual-compound situating soft, grabby matter at the shoulders and harder, faster rubber over the center strip.
The Riddler is set up to run tubeless on any UST rim with the application of a sealant. While 23 and 25mm tires can actually gain weight when run tubeless, these burly donuts definitely benefit from ditching those huge tubes. Going tubeless also lets you lower the PSI, adding additional plushness when cushion and grip are at a premium. At this point in a description, we'd typically lay out a tire's limitations; with the Riddler 45, we're finding ourselves unable to do so. Bikepacking, gravel racing, all-terrain adventure cycling—the Riddler approaches any multi-surface scenario with gusto.
- A gravel tire for multi-surface cycling
- Tread pattern grips at shoulders and rolls fast in center
- Compound is soft at shoulders and harder at center strip
- Generous girth absorbs gravel and dirt road abuse
- Tubeless-compatible TCS bead lets you shed the huge, heavy tubes
- Item #WTB002S
- Q & A
Perfect CX Training or Gravel Tire!
- Familiarity: I've put it through the wringer
I bought a set of Riddlers to use for CX training and they have been awesome. Reasonably light, lively feel, and the 37c has enough volume for the local mtb trails.
Will the 45mm fit on most wheels? What is the min rim inside width?
Any chance this tire will fit on a Niner RLT 9 alloy w/Stans Grail wheels?