A close up of the front end chain tensioning system. Chain tensioners are needed since the front and rear booms slide forward and backwards to allow the cranks to adjust for leg length. Chain management is typically one of the harder problems to solve with a recumbent, and with this bike it was doubly (ha ha) so. Actually quadruply so since there are four chains in all. I always try to avoid using drive side idlers since they steal efficiency, and I was able to do that with this bike. Had to use one idler for the front chain below the seat though.