KS ETEN

What KS ETEN is and how to choose it by control type, diameter and frame

Under-saddle lever control | KS ETEN | 27.2 / 30.9 / 31.6 mm diameter | 100–125 mm travel | Length and insertion depth | Installation and post action | FAQ

KS ETEN is a Kind Shock dropper post operated by a lever directly under the saddle. Compared with a regular fixed seatpost, it allows you to change saddle height according to terrain, so you can pedal efficiently on climbs and lower the saddle before a descent for better control over the bike.

The key point of this model is its simple under-saddle control. You do not route a remote cable to the handlebar; instead, saddle height is adjusted directly by the lever under the saddle. When choosing KS ETEN, therefore, check not only diameter and travel, but also whether this control style fits the way you ride.

What KS ETEN is

KS ETEN, sometimes searched for as KS eTen or Kind Shock eTen, is a dropper post with simple control directly under the saddle. This means you do not need a handlebar remote lever or cable routing to the cockpit.

This system makes sense when you want the benefit of a dropper post, but prefer simpler control without a remote lever. It is not the right solution for every rider, but for those who do not need to adjust saddle height constantly in every technical section, it can be a very practical option.

The basic parameters still decide compatibility: seatpost diameter, travel, overall length, minimum insertion depth and correct saddle height. The same model can exist in different diameters and travel options, which suit different frames and riding styles.

Who KS ETEN makes sense for

KS ETEN makes sense for riders who want a dropper post with simple under-saddle lever control and do not want to deal with a handlebar remote. It suits MTB, hardtail, XC, lighter trail use, recreational riding or situations where you do not need to lower and raise the saddle constantly during the ride.

In terrain, the main benefit is the option to lower the saddle before a descent or a technical section. A lower saddle position helps you work better with body weight, ride steeper sections with more confidence and gain more clearance over the bike. On climbs, you can return the saddle to a higher position for more efficient pedalling.

If you adjust saddle height frequently during technical riding, a handlebar remote will usually be more practical. With KS ETEN, you need to reach under the saddle to change height, which is simple, but not as fast as a remote lever on the cockpit.

Under-saddle lever control

On KS ETEN, saddle height is changed by a lever placed directly under the saddle. The advantage is simplicity: you do not need handlebar cable routing, remote lever positioning on the cockpit or compatibility checks with brakes and shifters. The whole system is more straightforward.

The downside is that you need to reach for the saddle to change height. This is fine if you mainly adjust the saddle before a longer descent, before a climb or when the terrain changes. If you want to drop the saddle several times per minute in technical riding, handlebar remote control will be more convenient.

When using this type of post, check that the under-saddle lever is easy for you to reach and that its position does not bother you while riding. The ergonomics are simple, but they depend on how often you actually change saddle height.

Seatpost diameter: KS ETEN 27.2 / 30.9 / 31.6 mm

KS ETEN appears in this category in 27.2 mm, 30.9 mm and 31.6 mm diameters. The seatpost diameter must match the internal diameter of the frame’s seat tube exactly. If the frame requires 30.9 mm, a 31.6 mm post will not fit mechanically.

KS ETEN 27.2 mm makes sense for frames with a narrower seat tube, often used on XC, gravel, lighter hardtail or slimmer frame designs. With this diameter, it is especially important to check post length, travel and available insertion depth inside the frame.

KS ETEN 30.9 mm and KS ETEN 31.6 mm are aimed at common MTB and hardtail frames. These diameters are frequent on mountain bikes, but you should always verify the exact frame specification or the diameter of the original seatpost.

Travel, length and insertion depth: 100 / 125 mm

KS ETEN is mainly available here with 100 mm and 125 mm travel options. Travel defines how far the saddle can drop. More travel gives more clearance over the bike on descents, but it also usually means a longer post.

KS ETEN 100 mm makes sense where you want a noticeable saddle drop, but still need a reasonable overall post length and good frame compatibility. It can suit smaller frames, shorter riders, XC, hardtail or less aggressive use.

KS ETEN 125 mm gives a bigger difference on descents and technical sections. It makes sense when the post fits the frame, matches your saddle height and you want more clearance over the bike than with the 100 mm version.

What to check when choosing KS ETEN

• Control type: KS ETEN uses a lever directly under the saddle. If you want handlebar remote control, choose the Remote version.
• Seatpost diameter: Check whether you need 27.2 mm, 30.9 mm or 31.6 mm. The diameter must match the frame exactly.
• Travel: This category mainly uses 100 and 125 mm. More travel gives more clearance, but requires enough seat tube length in the frame.
• Overall length: The post must fit into the frame and still allow correct saddle height when fully extended.
• Minimum insertion: Every post must be inserted at least to the marked minimum insertion line. With longer travel, this can decide compatibility.
• Lever reach: Check that you can comfortably reach the lever under the saddle and that this control style suits you.
• Seatpost clamp: An overtightened clamp can negatively affect dropper post action. Tighten it carefully according to the frame and post recommendations.
• Function after installation: After installation, check that the post returns smoothly, does not sink under load and that the control has a natural feel.

In practice: first verify the frame diameter, then measure saddle height and available insertion depth inside the frame. After that, choose 100 or 125 mm travel according to how much clearance you want over the bike and whether under-saddle lever control suits you.