The rixen kaul klickfix caddy post plus bar clamp is a new version of the klickfix handlebar adaptor designed specifically for mounting onto vertical tubes such as stems or seatposts the caddy is suitable for folding bikes scooters wheelchairs and golf caddies it is ideal for the attachment of bigger bags baskets or backpacks onto vertical seatposts on foldable bikes leaving the handlebar free for mounting lights the caddy fits all tubes with diameters between 25mm and 36mm