I have purchased a Honda Shine SP 2016. It is a bit tall, my feet don't touch down completely. My friend suggested to change the shock absorbers. Can someone advise me about this?
This sounds expensive. You may be able to raise the front forks in the triples a little. But lowering the rear is trickier and probably involves different springs. Then you'll need to shorten your kickstand. Maybe there's room to modify your seat? If the pad is thick, maybe you can take the cover off, and cut it down some.– coryNov 30, 2016 at 20:38
Feet touching the ground completely is not required to ride safely, provided you can balance the bike steadily when stopped.
I would advise against lowering your bike if at all possible. If it is unsafe for you at that ride height, I would suggest you purchased the wrong bike.
If you choose to change the ride height, do both front forks and rear shock absorbers in order to keep the bike level. Depending how much you want to lower it, you may need to purchase different components. This could get very expensive, if the parts are even available. Simply lowering one end could cause control issues.
The disadvantage to lowering the bike is it changes the design from how it was intended to function. These changes could degrade the ride quality, handling and, depending how you ride, contact with the road when cornering.