julio 30, 2026Publicado Por En julio 30, 2026Improved Suspension System With Shock Absorber Seat Post For Mountain BikesAdjustable back float design, easy to operate. Built-in spring, better shock absorption effect. Material: Aluminum alloy AL606. Positive is very important to us. Size: 25.4/27.2/28.6/30.0/30.4/30.9/31.6.