Clifton Backies is part of an off-road route that links Clifford Moor to the Orbital Route. Entry to it is restricted by a barrier designed to prevent motorcyclists from entering it. Unfortunately this same barrier prevents non-standard cycles, like trikes, recumbents, cargo bikes, adaptive cycles etc from being able to use this path.
Update: Following YCC representations to the Clifton Backies Management Board, this barrier has now been completely removed as part of an initiative to make the Backies more accessible to all! Excellent!