Time Trials Extreme Grand Pre

XXL Racing of Germany, with Thomas Schoenfelder at the helm, places second in TTXGP, billed as the world’s first zero carbon, clean emission Grand Prix.  (Susan Carpenter / Los Angeles Times)

Brammo, of Ashland, Ore., ran two of its Enertia bikes. Ridden by TT Supersport and Superbike racer Mark Buckley, the Enertia placed third in the TTXGP. The Enertia was sponsored by Best Buy, which will soon start selling the bikes.  (Susan Carpenter / Los Angeles Times)

Mission Motors of San Francisco was favored to win the TTXGP. It placed fourth with rider Thomas Montano, the fastest American at the 2005 Isle of Man TT when he rode an MV Agusta.  (Susan Carpenter / Los Angeles Times)

Native Cycles, a.k.a. Electric Motorsport out of Oakland, Calif., placed fifth overall in the TTXGP. It ranked first in the open class, for bikes built for less than 20,000 British pounds, or about $33,000.  (Susan Carpenter / Los Angeles Times)

Barefoot Motors of Portland, Ore., is one of four U.S. competitors in the TTXGP. Out of the 60 manufacturers that registered to compete, only nine completed the race.  (Susan Carpenter / Los Angeles Times)

The TGM-RT from Htblauva of Australia is capable of 87 mph. It placed seventh out of nine bikes in the TTXGP.  (Susan Carpenter / Los Angeles Times)

The TORK bike, helmed by TT rider John Crellin, placed eighth in the TTXGP. Crellin died while racing in the Senior TT race immediately after the TTXGP.  (Susan Carpenter / Los Angeles Times)

The Brunel X was built by a team of engineering students from London’s Brunel University. It placed last, with rider Stephen Harper pushing his bike by foot over the finishing line while the TTXGP winners were on the podium dousing one another with champagne.  (Susan Carpenter / Los Angeles Times)