Here are some photos of John Lambrick's 1974 TR5MX he raced at the AHRMA Peoria TT a few weeks back. Lambrick, from Decatur, Illinois, rebuilt this Avenger with the help of Claude McElvain. While giving us the scoop on the bike, John pointed out the BSA labeled frame and Triumph stamp on the motor. As BSA and Triumph were on their last legs in '74, this bike was essentially a BSA B50MX rebranded, renamed, and slightly modified in a last ditch effort to keep their best bikes selling in the U.S. market. John was kind enough to email us a copy of the original Cycle Magazine review of the bike in which thy give it high marks and can't figure out why more MXers of the time were not on these things. While John's bike is essentially stock, he gave us info on what had been done and what the future holds for his Avenger:
"We removed the de-compression plate and added a PVL ignition. Based on how well the bike handled at the Peoria TT, it WILL have 10-12 more horsepower when I become eligible for the Senior Class."Thanks to John for sharing this bike and info with us. We hope to see him onboard again at next years event.