Is D4S heavy to carry?

Articles in this section

• What's in the package for D4s?
• Is D4s easy for me to replace the accessories myself?
• Can I ride the D4s when it rains?
• Speaking of the shifting system, what's so special about D4S?
• How fast can I ride the D4S?
• Is D4S heavy to carry?
• Does D4s easy to charge?
• I hope that cycling can save more effort, how to achieve it for D4S?