Originally Posted by dirt donkey
Do we need to have a spark arrestor installed on the bike? What if the bike is licensed DS.
Yes....is the best answer as it relates to our group and not stirring the pot..
The official answer is below:
Vehicles must be street legal. Vehicles with off-the-highway registration (California green-sticker) cannot be operated anywhere within the national park. All vehicles must have valid license plates and highway registration including two-wheel-drive and four-wheel drive vehicles, motorcycles, all-terrain vehicles, dune buggies, trail bikes, mini-bikes and every other mechanically-driven means of transportation.