Bro we all were waiting for your video after the solo ride video I checked many times if any video is uploaded by you .....because you make most detailed videos on rx ...bro keep it up .. Brother I recently opened my 135 4 speed and I found out that the primary gear is bigger so I bought 19 teeth one ....and the chain sprockets are also 15 front and 39 rear which belongs to rx100 ....now I will buy the stock one 16front and rear 34....what overall result do u think would be after putting 19 teeth primary ( driving) gear... and 16 front - 34 rear chain sprockets ......