I thought it might have been cut off by undergrowth but the Streetview from 2009 shows it the same length with a ditch behind - if it's a stub for future extension along the A road, I wonder why they didn't just leave it until building the extension. Given the nearby branch of Rutland Cycles (I think), it's a bit of a shocker that the cycleways are a mix of bonkers new build and paint+signs conversions. The northern island at that roundabout with one fence panel obstructing the crossing is also pretty special.
https://www.google.co.uk/maps/@52.31501 ... 312!8i6656