Pepi's Tire Noodle - Runflat Gravel Sport 650B XS stock The Flow CB7 is among

The Flow CB7 is among the lightest carbon trail rims available

On the pavement

gravel and mountain bikes

you can attach a Burley Trailer

Pepi's Tire Noodle - Runflat Gravel Sport 650B XS stock The Flow CB7 is amongPTN Gravel Sport, a new range of ultra light and resistant tyre inserts specially developed with an exclusive closed cell techno polymer material. It optimises the operation of tubeless systems, increasing driving precision, protects tyres and rims from impact, absorbs vibrations, and makes it possible to ride even in Runflat at moderate speeds. Rim and tyre size compatibility chart, see below. PTN Size Wheel Size Tyre width *XXS 700C 29" 35mm 38mm