Cable-free Bluetooth dropper post in 27.2 mm with 75 mm of travel and an overall length of just 382 mm, ideal for small gravel frames, with a compact remote for drop bars.

Seekrun S8 Gravel 75 mm: the wireless dropper post that fits small frames

On a gravel bike, just a few centimetres less saddle height is often enough to ride a rocky descent with more composure. The Seekrun S8 Gravel 75 mm gives that clearance to 27.2 mm frames, without a single cable. Its short overall length of 382 mm makes it compatible with small frame sizes and short seat tubes, where a 100 mm post would sit too high.

Specifications (manufacturer data)

• Diameter: 27.2 mm
• Travel: 75 mm, adjustable
• Overall length: 382 mm
• Insertion: 120 mm minimum, 250 mm maximum
• Minimum exposed length (saddle down): 132 mm
• Weight: 656 g
• Material: aluminium, black finish
• Remote: compact Bluetooth for drop bars (CR2032 battery)
• Battery: 450 mAh, recharges in 1 h
• Guaranteed operation down to -15 °C
• Maximum rider weight: 120 kg
• Seekrun app for monitoring and settings

Installation without modifying the bike

No internal housing, no drilling, no routing through the frame: the S8 replaces the stock seatpost and the remote clips onto the curve of the drop bar, reachable without letting go of the hoods. It is the simplest way to upgrade a gravel bike that is already built, including a carbon frame with no dropper routing.

S8 Gravel 75 mm or 100 mm?

The 75 mm version puts compactness first: 132 mm of exposed post is all it needs with the saddle down. It is the right choice for shorter riders or frames with a steeply sloping top tube. If your frame allows it, the 100 mm version (407 mm) gives you more room on steep descents. Both share the same compact remote, the same battery and the same app.

The LVR workshop tip

Measure your saddle height and the available depth in the seat tube before choosing: a minimum insertion of 120 mm is required. Tighten the seat clamp to the torque specified by the frame manufacturer, without overdoing it, so you do not slow down the post's action. Recharge the battery every few rides: one hour is all it takes.

In the box

• Seekrun S8 27.2 mm dropper post
• Battery
• Compact Bluetooth remote with clamp ring
• CR2032 coin cell battery
• Charging base and cable
• Torx T25 key

2-year warranty, spare parts available.