For those that own and love the HP2 but need a bit longer range than the stock tank provides, we have the solution! The underseat tank for the HP2 Enduro and Megamoto holds approximately 7L of fuel and increases your fuel capacity more than 50% over the stock tank. The tank is 6mm polyethylene and available in black or white. The tank mounts with the original BMW passenger peg mounts (some DIY may be required) or using an aluminum mounting bar, available separately. An electric fuel pump to expedite filling the main tank from the auxiliary underseat tank is also available.
Holan "Markus" HP2 7L Underseat Fuel Tank - $579.99 -