The Optima Baron has a unique chainline that requires a unique idler system. Thus, the Optima Baron Power and Return Idler Kit. Featuring two Return and one Power idler, all of which are allowed to float, this kit has just the right combination of idlers hardware to get the most efficiency and to keep the chain off of your bike's tire and fork to give you the greatest steering maneuverability available.
Recently ordered kit and has made a significant reduction on drive train noise. Goods were exactly as described and were shipped and arrived in New Zealand within 10 days.