Nakamura Ecko 2.3 Hardtail MTB for Sale. Medium sized 18-inch frame with Cytec front shock-absorbers. 26-inch tires on black alloy rims. Cytec alloy crankset with Shimano SIS gearing. This bicycle was only used a couple of times, and is in really good condition. C/w an ergonomic stitched saddle & kickstand.