QUOTE(sdeemi @ Sep 23 2024, 07:29 PM)
After reading the manual, lots of thing need to check

Need to replace the engine oil, oil filter, coolant, air filter, spark plugs, do valve clearance
Need to check brake fluid, brake hose, brake pads, chain tension, front fork, shock absorber
for tpms, is it just for ease of mind?
for voltmeter, what's the purpose?
for forks and shock change, is this an upgrade?
Let me help you with your questions.
TPMS optional item, if dont want every week pump air je. Like your weekly routine.
Voltmeter is definitely a must as you need to look out for your battery health.
If battery very weak dy, you might overwork your rectifier. Rectifier kaput then your cost of fixing goes up.
For fork/shock change, upgrade is optional. See how your bike performs according to your riding style. If your bike feels solid while riding, good nothing to change.
Aftermarket options allow for adjustable rebound/compression, therefore finetuning/improving your riding experience.