Pepi's Tire Noodle - Runflat Gravel Sport 650B XXS stock and Secure Lock nipples use

and Secure Lock nipples use a mechanical lock to resist loosening

but narrow enough that your 2

Single opening with roll-up closure to guarantee watertightness

Fits with the Bobins RAP (ref : RAPBIN001)

SRAM SX Eagle Trigger

Pepi's Tire Noodle - Runflat Gravel Sport 650B XXS stock and Secure Lock nipples usePTN 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