CHRISTIANSBURG — A Salem man who fled police at speeds topping 150 mph before crashing his motorcycle in Montgomery County was found guilty today of several charges but plans to appeal.

After the March 13 chase, Spenser Ural Duncan, 20, was charged in Montgomery County with two counts of reckless driving — one for driving in excess of 80 mph and one for endangering life, limb or property — and driving without a license.

Police have said he led them on an 18-mile chase on U.S. 460 through Roanoke County and Salem before losing control of his motorcycle on a bridge near Elliston-Lafayette Elementary School. He was not seriously hurt.

At today's hearing in Montgomery County General District Court, defense attorney Charles Phillips said Duncan would plead no contest to the charges and would let the court set his punishment but would appeal his convictions.

Phillips said Duncan also plans to plead guilty to a felony eluding charge at a July 24 hearing in Roanoke County Circuit Court. He was convicted in Roanoke County General District Court of misdemeanor reckless driving and driving with a revoked license but appealed those to circuit court as well. His appeals will also be heard at the July hearing.

An August hearing is scheduled in Salem General District Court for a misdemeanor charges of reckless driving and a traffic infraction of having improperly mounted license plates.

Virginia State Police have said Duncan was going as fast as 154 mph on his 2004 Suzuki motorcycle. Police said he had just bought the bike two days earlier.

Montgomery County substitute Judge Glenwood Lookabill said today it was one of the worst recorded speeds he had ever seen.

A trooper began to follow the bike after noticing that its West Virginia license plate was bent under the bike’s back fender. Several troopers joined in the chase as Duncan sped west on U.S. 460 into Montgomery County, where he cut down Old Town Road, past Shawsville Middle School, then along Alleghany Spring Road and onto eastbound U.S. 460. Police have said he nearly hit several vehicles.

Phillips said Duncan spent six weeks in jail before he was released on bond.