Umtanum Ridge 27.5" x 2.2" (650B x 55)

Description   |

The ultimate 650B bikepacking tire is designed for rides where you don’t know what lies ahead. Umtanum Ridge a steep and lonesome ridge in the central Cascade Mountains.

The Umtanum Ridge’s large and widely spaced knobs grip tenaciously when conditions get tough. On pavement, it rolls and corners like a slick thanks to its large and strategically placed knobs that don’t squirm and always put the same amount of rubber on the road. The Umtanum Ridge features our patented noise cancellation: The staggered tread blocks create overlapping noise frequencies that partially cancel each other. This means that on most surfaces, the Umtanum Ridge doesn’t just roll as fast as a slick – it’s also as quiet as a slick.

The Standard casing is a more affordable option: comfortable and fast, yet also strong to withstand considerable abuse. The Endurance casing is reinforced for extra sidewall protection and puncture resistance, while retaining the speed and comfort for which Rene Herse tires are famous. 

The Umtanum Ridge is tubeless-compatible. For tubeless set up, we recommend Panaracer Seal Smart tubeless tire sealant. 

Specs |

All models feature:

• Clincher, folding bead
• Tubeless-compatible
• Maximum pressure with tubes: 55 psi (3.8 bar)
• Maximum recommended pressure – tubeless: 55 psi (3.8 bar)
• Actual width on 21 mm rim (internal): approx. 56 mm
• Actual width on 23 mm rim (internal): approx. 57 mm
• Extralight casing: +1 mm width
• Tubeless: +0.5 mm width
• Recommended rim: 17 - 40 mm (inner width; hookless: +1 mm)

Standard casing

• Supple casing
• Tan sidewalls
• 580 g

Endurance casing

• The same ultra-fine threads as our Extralight casing, but in a denser, stronger weave
• Protective belt under sidewalls and tread
• Ideal for rough gravel and tough conditions
• Dark tan sidewalls
• 595 g

Endurance Plus casing

• Extra-tough casing with ultra-strong threads
• Protective belt under sidewalls and tread
• The ultimate in sidewall protection
• Dark tan sidewalls
• 630 g

Extralight casing

• Ultra-light, ultra-supple casing
• The ultimate in speed and comfort
• Tan sidewalls
• 515 g