PREMIUM BICYCLE COMPONENTS

31.6MM MANUAL HYDRAULIC DROPPER SEATPOST

31.6mm Diameter | 100mm Travel | All Black

CABLE-FREE DESIGN UNDER-SADDLE LEVER 100MM TRAVEL

Product Overview

Upgrade your mountain bike with this premium 31.6mm Manual Hydraulic Dropper Seatpost, designed to provide convenient saddle height adjustment without the need for cables, external controls or a handlebar-mounted remote.

Featuring a built-in manual lever positioned directly beneath the saddle, this dropper seatpost allows you to raise or lower your saddle height using the integrated lever.

With 100mm of adjustable travel, it provides flexibility when switching between different riding positions, whether climbing, descending or riding off-road.

Manufactured from lightweight, durable 6061-T6 aluminium alloy with a premium all-black finish, this seatpost is an excellent upgrade for mountain bikes, trail bikes and compatible electric mountain bikes.

Key Features

100mm Adjustable Travel – Convenient saddle height adjustment for climbing, descending and off-road riding.
31.6mm Seatpost Diameter – Designed specifically for bicycle frames requiring a 31.6mm seatpost.
Integrated Manual Lever – Built-in adjustment lever located directly underneath the saddle.
Completely Cable-Free – No handlebar remote, cables or internal cable routing required.
Hydraulic Height Adjustment – Telescopic seatpost mechanism designed for smooth and controlled saddle movement.
6061-T6 Aluminium Alloy – Lightweight, strong and durable construction suitable for cycling use.
Easy Installation – Straightforward replacement for compatible standard seatposts, without the need to route control cables.
Adjustable Saddle Clamp – Designed for standard 7mm round bicycle saddle rails.
Minimum Insertion Markings – Clearly marked insertion guide to help with correct installation.
Premium All-Black Finish – Modern black finish designed to complement a wide range of bicycle builds.

How Does the Manual Dropper Work?

Unlike traditional dropper seatposts that use a handlebar-mounted remote and cable system, this model features a manual adjustment lever directly underneath the saddle.

To adjust the seat height, operate the integrated lever beneath the saddle while applying or releasing pressure on the seat.

This allows the saddle to be raised or lowered within its 100mm travel range. Release the lever to secure the saddle at your chosen position.

The cable-free design reduces installation complexity and eliminates the need for additional handlebar controls.

Technical Specifications

Product Manual Hydraulic Dropper Seatpost
Seatpost Diameter 31.6mm
Adjustable Travel 100mm
Operation Integrated Manual Lever
Lever Position Directly Below Saddle
Control Cable Not Required
Handlebar Remote Not Required
Adjustment System Hydraulic Telescopic
Material 6061-T6 Aluminium Alloy
Colour All Black
Saddle Rail Compatibility Standard 7mm Round Rails
Recommended Bicycle Type MTB / Trail / Gravel / E-MTB
Available Variation 31.6mm / 100mm Travel / Black Only

What's Included?

✔ 1 × 31.6mm Manual Hydraulic Dropper Seatpost
✔ Integrated Under-Saddle Manual Lever
✔ Integrated Saddle Rail Clamp Assembly
✔ 100mm Adjustable Travel Mechanism

Please note: This product does not require or include a remote cable or separate handlebar-mounted control.

Bike Compatibility

This dropper seatpost is suitable for compatible mountain bikes, trail bikes, gravel bikes and electric mountain bikes that use a 31.6mm diameter seatpost.

Because the adjustment lever is integrated directly beneath the saddle, no internal cable routing is required.

Simply check that your bicycle frame supports a 31.6mm seatpost and provides sufficient insertion depth and clearance for the dropper mechanism.

IMPORTANT – PLEASE CHECK BEFORE ORDERING

This listing is for the 31.6mm diameter, 100mm travel, all-black manual dropper seatpost ONLY.

Please confirm your bicycle's existing seatpost diameter before purchasing.

The integrated adjustment lever is positioned underneath the saddle and must remain accessible for operation.

Bicycle frame and saddle are not included.

From E Bike Power UK Shop

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Visit our eBay shop for more bicycle upgrades, replacement parts and essentials.

Shipping & Returns

📦 Fast UK Dispatch
Orders placed before 2PM Monday–Friday are normally dispatched the same working day.

🚚 Tracked Delivery
Shipping via Royal Mail, DPD or FedEx, depending on the delivery service selected.

⏱️ Delivery Times
Most UK deliveries arrive within 1–2 working days after dispatch, depending on the delivery service.

↩️ 30-Day Returns
Unused items may be returned within 30 days in their original condition. Buyer is responsible for return postage unless otherwise required by law or eBay policy.

Need Help?

We aim to respond to all messages within 24 hours, Monday–Friday, 9AM–6PM, and occasionally at weekends.

Our UK-based team is happy to assist with product compatibility, installation questions and your bicycle build.