ZOOM Bicycle Wire-Controlled Hydraulic Lift Seat Tube Mountain Bike Seatpost, Size:30.9mm, Specif...

Details:
1. Material: Aluminum alloy
2. Weight: about 628 grams for outer wiring 30.9 mm, about 650 grams for outer wiring 31.6 mm, about 653 grams for inner wiring 30.9 mm, and about 679 grams for inner wiring 31.6 mm
3. Length: 375 mm for outer wiring, 400 mm for inner wiring
4. Specification: 43x42mm,
5. Stroke: 100 mm
6. Wall thickness: 3mm
7. Diameter: 30.9/31.6mm
8. The length of the internal cable: 170 mm (can be cut according to the bicycle)
9. Applicable models: road bikes, mountain bikes, etc.
10. Color: black
Features:
1. Double-nail rear drift design, both screws use 10.9 torque, the screw locking is more stable
2. Sealing ring design, rainproof and dustproof, protect the seat tube, and will not leak oil
3. The lifting seat tube adopts oil pressure system with high lubricity
4. The suspension rod will not be affected by the side
5. Coil springs provide proper compression and rebound damping, making riding easier
6. There is a fine adjustment screw on the bottom, which has been adjusted and no adjustment is required
7. The material is durable and easy to install