After one ride on the all new stumpjumper fsr expert carbon 6fattie you39ll never be riding trail again it39s a bold statement to make but the increase in traction control and floatation that our 6fattie wheel system provides is nothing short of revolutionary and then of course there39s the rest of the bike it features our fact 9m carbon fibre for the bulk of the construction in order to provide an ultra lightweight strong and stiff frame the carbon molding process also allowed us t