The Joust Fishing Rod Holder is the only bike specific rod holder on the market that mounts the rod in line with the bike like a Jousting knight! Not only does this keep the rod secure and out of harm's way, it allows you to stay in control and traverse the tightest trails on your way to your secret spot. Joust Fishing's seat post mounted rod holder is the modern hands-free solution to get your fishing pole to the lake, not only safely but in one piece. The Joust Rod Holder differs from the competition by the way its mounted and its location. the solution is generally a cumbersome tube mounted to the rear frame of the bike. Not only does this put the rod up right and vulnerable to branches and low hanging obstacles. it's an eye sore when it's not in use. Design & Compatibility - Joust rod holder fits on most bike seat posts (.75" Dia - 2.25" Dia. seat posts) from children's bikes to state of the art mountain bikes. - Must verify distance from bottom of seat to the top of the rear bike tire is larger than the size of rod and reel. - Compatible with bait casters or spinning rods - Mounting location along with its minimalist design means it's not an eyesore when not in use - Seat height may need to be adjusted depending on reel size - all necessary hardware is included