Park Tool Crown Race Setting System Extension (CRS-15EXT) collection_books-and-maps The Bordo offers features that

The Bordo offers features that have not been provided by any other design to date

and with increased puncture protection

Tubeless tires

the MXR 20 bridges the gap between 18" and 20" wheel sizes - meaning you can get him onto bigger wheels earlier and keep him there longer

Park Tool Crown Race Setting System Extension (CRS-15EXT) collection_books-and-maps The Bordo offers features thatAbout Park Tool Crown Race Setting System Extension (CRS 15EXT) Extend the compatibility of the CRS 15 to accommodate steering columns up to 425 mm. About Park Tool Park Tool are the world's largest bicycle tool manufacturer. Located in St. Paul Minnesota they have been designing and manufacturing bicycle specific tools since 1963. Their dedication to quality and innovation have gained them the reputation for producing the best bicycle tools in the