The move is believed to have been made to allow the sport's governing body to split the mixed gender tricycle road race into separate male and female events. British Cycling said it will appeal the decision with world and Commonwealth gold medallist MacLean, a sighted tandem pilot, lending his backing to that process.
MacLean, who is expected to compete alongside Paralympic and four-time world champion Fachie at the 2014 Commonwealth Games next summer, said he was floored by the UCI proposal. "For the tandem sprint to go is a massive deal - especially for someone like Neil who is still young and has a good few Paralympics ahead of him," he said. "When you start to water things down this way, I don't believe you will get people specialising in the sprint events as they do currently.
"The biggest issue for us is whether British Cycling will continue to fund us when, realistically, we only have one medal opportunity," Maclean added. "It's whether they still see it as value for money or not. There are a lot of things up the air and, with that, sprinter's livelihoods. Neil and I are secure until March but, between then and the Commonwealth Games, there could be a financial shortfall."
In a letter to the UCI, British Cycling is believed to have asked it to instead consider removing the hand-cycle team relay event from the Paralympic schedule as it typically attracts a less competitive field.
Gareth Sheppard, British Cycling's para-cycling performance manager, said: "The tandem sprint is arguably the most exciting event on the para-cycling programme. The number of cycling events in Paralympic Games is already heavily weighted towards the road - losing one of the stand-out track events would be a huge loss not only for our riders but also for audiences around the world."