These pictures are sent by my friend at Maldives, Ibrahim, who are replacing the stock gear box of his Yamaha 135LC for racing use with CMS Hi-Way Racing Gear Box. The difference can be seen at the teeth count of both of the gear box. Usually this teeth count is being measured in terms of gear ratios. CMS Hi-Way Racing Gear Box uses a lower ratio compared to stock gear box as this is due to power delivery from the engine is better for a modified Yamaha 135LC and this helps the bike to deliver better power at all RPM range.
The installation of this CMS Hi-Way Racing Gear Box is very straight forward and just a matter of plug-and-play. Open the engine, remove the stock gear box and replace the with the new one.