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Dropper posts let you change saddle height while riding without getting off the bike. In this category you will find Kind Shock dropper posts for MTB, trail, enduro, hardtail, XC and gravel use – with internal, external or wireless routing and different diameters, travel lengths and overall lengths.
Internal, external and wireless routing | 27.2 / 30.9 / 31.6 mm diameter | 65–150 mm travel | Overall length and insertion depth | Kind Shock model ranges | KS service | FAQ
A dropper post lets you raise or lower the saddle while riding. Compared with a regular rigid seatpost, you do not need to stop before a descent and manually adjust saddle height. On climbs, you keep the saddle high for efficient pedalling; on descents, you drop it lower and get more space to move your body over the bike.
In our range, you will mainly find Kind Shock / KS dropper posts, a brand focused on dropper posts, remote levers, service parts and accessories. The most important factors when choosing a dropper post are the frame, routing type, seatpost diameter, travel and overall length.
The biggest difference is in technical terrain. When you lower the saddle, you gain more control and space over the bike, can shift your weight back more easily, work better through corners and ride steep or rough sections with more confidence. This is why dropper posts are now common especially on trail, enduro and more aggressive hardtail bikes.
A dropper post is not useful only for enduro. Shorter travel can also work well on a hardtail, XC bike or gravel bike if you ride technical sections, steeper descents or want more control away from smooth roads. On gravel and XC bikes, the goal is usually not maximum travel, but the ability to quickly lower the saddle when you need more control.
The main difference compared with a regular rigid seatpost is bike control. A rigid seatpost is simpler, lighter and less demanding to maintain, but it does not allow quick saddle height changes according to terrain. A dropper post adds a moving mechanism, remote control and service requirements, but in technical terrain it significantly improves control.
The first major decision is the routing type. Modern frames often support internal cable routing, while older frames or simpler builds may not. That means you should not choose a dropper post only by diameter and travel. First, check whether your frame allows internal routing or whether you need an external version.
Dropper posts with internal routing run the cable housing inside the frame. The result is a cleaner look, lower risk of catching the cable and a more modern solution for MTB, trail and enduro frames. With Kind Shock, internal routing is often found on models marked as Integra.
Dropper posts with external routing make sense mainly for frames without internal routing preparation. The cable housing runs externally along the frame, so installation can be easier on older bikes, some hardtails or frames that do not have a cable port for a dropper post.
Wireless dropper posts do not use a classic cable and housing. The advantage is clean installation without routing a cable through the frame; the disadvantage is usually a higher price, battery and electronics. They make sense mainly when you want simple installation without dealing with cable routing, or when frame cable routing is a problem.
Seatpost diameter is one of the most important parameters. A dropper post must match the internal diameter of the frame’s seat tube. If the frame requires 30.9 mm, a 31.6 mm post will not fit. If your frame uses 27.2 mm, you need a 27.2 mm dropper post, or another compatible setup according to the frame.
A 27.2 mm dropper post is often used on XC bikes, gravel bikes, older frames or some slimmer hardtails. Because of the smaller diameter, the range of travel lengths and construction options is usually more limited than with common MTB diameters. With 27.2 mm posts, length, insertion depth and available travel matter just as much as the diameter itself.
30.9 mm dropper posts and 31.6 mm dropper posts are common sizes on modern MTB frames. These diameters usually offer a wider choice of travel, lengths and versions. This is where riders often choose between 100, 125, 150 mm or higher travel depending on frame, rider height and riding style.
With a dropper post, we would not treat shims or reducers as the first solution. A dropper has an internal mechanism, works under load and needs precise support in the frame. The cleanest solution is to choose the diameter that matches the frame.
Travel tells you how many millimetres the saddle can drop. More travel means more clearance over the bike on descents, but it also usually means a longer overall post. That is why the biggest available travel is not always the best choice. The post must match not only the frame, but also the rider’s height and correct saddle height.
Shorter travel of 65–100 mm makes sense for XC, gravel, smaller frames, shorter riders or frames without enough insertion depth for a long post. It also works when the rider does not have enough space between the frame and saddle for more travel, but still wants better control in technical sections.
125 mm travel is often a universal choice for trail bikes, hardtails or medium-height riders who want a noticeable difference on descents but do not have enough space for a longer post. On smaller frames, 125 mm can be more practical than 150 mm because it fits more easily and is easier to set to the correct saddle height.
A 150 mm dropper post makes more sense for trail, enduro and more aggressive MTB use, especially for riders with enough saddle height and frames that allow the post to be inserted deeply enough. For searches such as 31.6 150 mm dropper post, it is important to check not only diameter and travel, but also overall length, minimum insertion, seat tube length and rider height.
When choosing a dropper post, diameter and travel are not enough. Overall post length, insertion depth and saddle height in the fully extended position are just as important. If the post is too long, it may not fit into the frame or the saddle may remain too high even in the lowest possible installation position.
This is common especially with smaller frames, shorter riders or bikes with interrupted seat tubes. A bend in the frame, suspension pivot, bottle cage bolts or another internal obstruction may prevent the post from being inserted as deeply as it appears from the outside.
Rider height alone is not enough, but it helps determine correct saddle height. Two riders of the same height can have different leg length and use different frame sizes, so it is always better to measure the real distance from the frame to the saddle rails instead of choosing travel only from a general size table.
In practice: before choosing, measure how much post you need above the frame at your correct saddle height and how much space you have inside the seat tube. Only then choose travel. With a dropper post, correct length is often just as important as travel itself.
Kind Shock, often shortened to KS, is a brand focused on dropper posts, remote levers, spare parts and service components. In the range, you may find model lines such as KS LEV, LEV Integra, LEV SI, E20i / Rage-i or the wireless LEV Circuit.
In general, models marked Integra are designed for internal routing, while external versions suit frames without internal cable routing. More affordable ranges make sense for budget-friendly builds, while higher-end ranges suit lighter or more performance-focused setups. In the main category, however, it is more important to choose the correct diameter, travel, length and routing type before focusing on the model name itself.
To explore the wider brand range, you can also visit the Kind Shock page, where dropper posts, remote controls and related parts from this brand are grouped together.
A dropper post is a moving component. It works in dust, moisture, under load and through repeated compression and extension. Over time, this can lead to slower return, play, rough movement, remote-control issues or the need for preventive maintenance.
One advantage of Kind Shock is that Katmar operates as an authorised service centre for KS / Kind Shock dropper posts. This matters especially with dropper posts, where the value is not only in the sale, but also in correct maintenance, diagnosis and possible repair.
For maintenance, remote control setup or repairs, KS parts and accessories may also be relevant, such as levers, cables, small service parts or accessories depending on the specific dropper post model.
In practice: first identify the frame diameter, then the routing type, and only then choose travel. If you have a modern MTB frame with internal routing, you will probably be looking for an internally routed dropper post. If you have an older hardtail without routing preparation, external routing makes more sense. On gravel, XC and smaller frames, shorter travel and good insertion depth are often more important than the highest possible travel.
The diameter must match the frame. The most common sizes are 27.2 mm, 30.9 mm and 31.6 mm. You can find the value on the original seatpost, in the frame specification or by measuring it. With a dropper post, the correct diameter is critical because the wrong size will not fit mechanically.
Shorter travel of 65–100 mm suits XC, gravel, smaller frames or shorter riders. 125 mm is a more universal trail choice for many hardtails and medium-height riders. 150 mm and more makes sense mainly for trail and enduro, if the post fits the frame and matches the rider’s correct saddle height.
Internal routing runs the cable housing inside the frame and requires a frame designed for internal cable routing. External routing runs the cable housing outside the frame and is suitable for older or simpler frames without internal routing. Always check the frame construction before choosing.
Service the dropper post if it returns slowly, sinks under rider weight, develops excessive play, feels rough, does not respond to the remote lever or has control issues. With Kind Shock posts, you can use an authorised KS / Kind Shock service centre, which is especially useful for diagnosis, repair and the use of correct parts.
