Seatpost with vibration isolation member

A seatpost assembly adapted to couple a seat to a bicycle frame, the seatpost assembly comprising:

• an inner member;
• an outer member at least partially surrounding a portion of the inner member;
• and
• a damping member disposed inside the outer member, between the inner member and the outer member, and wherein the damping member is the only source of connection between the inner member and the outer member.

A bicycle comprising:

• a wheel;
• and
• a frame coupled to the wheel and including a frame member, wherein the frame member comprises:
• an inner member;
• an outer member at least partially surrounding a portion of the inner member;
• and
• a damping member disposed inside the outer member, between the inner member and the outer member and providing vibration damping between the inner member and the outer member, and wherein the inner member and the outer member cooperate to define a gap therebetween, and wherein the damping member comprises a body portion positioned in the gap.