Hi,
Welcome to TAI.
Performance: 40kmph - 100kmph -Gladiator
Performance: 0 - 60kmph - Shine/Stunner
Yamaha SS125:
+ves: Best looking bike, square engine (bore x stroke ratio is 1:1), very good mid range performance, exhaust note is very addictive after 5000rpm, best looking speedo console, unmatched bite force in the brakes, long soft seats (2adults + 1 laptop bag easily)
I have a SS125, I could not follow the "Run-in" due to hectic work schedule, hence my front disc brake has uneven wear (wobbling started at just 2K kms!). This bike has very good engine, average gear box, poor plastics & excellent paint quality. This bike is best enjoyed in the mid range - 50 - 80kmph driving conditions. Brakes are anyday better than even the Shine & the old unicorn. This bike has two major drawbacks - skinny plastics & very thin tyres. Also the best looking bike in its class for sure.
Honda Shine:
+ves: Simple styling, closed chain cover, smoothest engine & Honda badge.
Very good initial pick up (dont be surprised if you end up in a wheelie on your 1st test drive), one of the quickest commuter bikes (0 - 60 is really quick), seats are comfortable (but not as good as the SS125), again really thin tyres, average bite force in disc. Styling is very simple & plesant - family bike image is retained here.
I previously owned a bajaj Discover 100 (Dts-si) in 3yrs I drove 36000kms before selling it due to White smoke issue.
Electrical issues faced in 3yrs: NIL
Brake issue: Nil
Engine issues: Only in the end
Pick up & smoothness: Both dropped after 5months of usage (more vibrations)
Mileage:
1st year - realtime 85kmpl (and even more)
3rd year - 63kmpl (& still reducing)
recurring issues - clutch wears out sooner than other bikes, chain & sprocket change is a must at approx. 14K kms.
I have not driven the new discover 125 so no comments.