I remember discovering IRC Kujos after years of riding 2.1" WTB Velociraptors. My intro to sub 30 psi tire pressures! The added traction was so worth the almost 1 Kg weight gain.
I gave 27.5+ a try on a singlespeed for a couple of years. 3.0F/2.8R Nobby Nics on i45 rims. I found the plus setup to be extremely sensitive to tire pressure. Only a few psi separated the pinch flat zone from the bouncy bouncy zone.
The same bike was much better with 29" wheels. 30 mm id rims with a 2.5 DHF/2.3 Aggressor combo.
March 15, 2022, 11:46 a.m. - andyf
I remember discovering IRC Kujos after years of riding 2.1" WTB Velociraptors. My intro to sub 30 psi tire pressures! The added traction was so worth the almost 1 Kg weight gain. I gave 27.5+ a try on a singlespeed for a couple of years. 3.0F/2.8R Nobby Nics on i45 rims. I found the plus setup to be extremely sensitive to tire pressure. Only a few psi separated the pinch flat zone from the bouncy bouncy zone. The same bike was much better with 29" wheels. 30 mm id rims with a 2.5 DHF/2.3 Aggressor combo.