G 540 Thanks to its generous width, this rim shrugs off hard knocks, even on bumpy tracks. Enjoy those long rides! The aluminium gravel rim is the ideal choice for tackling gravel, roots and small obstacles on unpaved forest trails. Tough and versatile, it suits a wide range of uses and delivers great comfort thanks to its 24 mm internal width and knobbly tyres up to 53 mm wide.