Single Status Update
It's actually not entirely farfetched that Sonic would somehow be decent at using an Extreme Gear in the first Riders game because:
1) He used a board (well okay it was a slab of metal, but still...) in Sonic Adventure 2 and there was boarding involved in SA1's snow levels, so he would have some idea of how to board.
2) The board that Sonic used in Sonic Riders was stated somewhere to be very stable and best for beginners, so Sonic would have an easy time using it combined with his pre-existing skill from the SA2 incident. Granted hovering is different from metal on the ground, but it still applies.