Autodrop

The first ever fully integrated, automatic dropper post

The Secret Weapon

Every rider’s all-new secret weapon, BMC Autodrop provides the first ever fully integrated, automatic dropper post.

This revolutionary technology is featured on Fourstroke 01 and enables on-the-fly and squat-free seatpost dropping to push further faster.

When Every Second Matters

During a race, BMC riders activate Autodrop up to a hundred times allowing them to focus entirely on the track.

The peerless technology eliminates the need to squat to lower the saddle with it’s intuitive two-position adjustment, allowing riders to pedal longer before hitting a downhill section.

The result? More speed, improved lap times and less fatigue for a race-defining split-second advantage.

Functionality

Mechanical operation
Autodrop is a mechanically operated dropper seatpost enabled by the air tank housed in the downtube.

No batteries required
The dropper seat post is actuated by a cable, while the Autodrop function is powered by pressurized air contained in the downtube air tank.

Pump it up!
The air tank can be filled using a regular track pump. 14 bars allow for around 100 activations of the Autodrop system.

No range anxiety!
Enough to win a World Cup event or day-long trail rides: when the air tank is empty, Autodrop still works like a regular dropper seatpost allowing your body weight to drop.

Intuitive
Use it like a regular post; no learning curve is required.

When Every Second Matters

During a race, BMC riders activate Autodrop up to a hundred times allowing them to focus entirely on the track.

The peerless technology eliminates the need to squat to lower the saddle with it’s intuitive two-position adjustment, allowing riders to pedal longer before hitting a downhill section.

The result? More speed, improved lap times and less fatigue for a race-defining split-second advantage.

Functionality

Mechanical operation
Autodrop is a mechanically operated dropper seatpost enabled by the air tank housed in the downtube.

No batteries required
The dropper seat post is actuated by a cable, while the Autodrop function is powered by pressurized air contained in the downtube air tank.

Pump it up!
The air tank can be filled using a regular track pump. 14 bars allow for around 100 activations of the Autodrop system.

No range anxiety!
Enough to win a World Cup event or day-long trail rides: when the air tank is empty, Autodrop still works like a regular dropper seatpost allowing your body weight to drop.

Intuitive
Use it like a regular post; no learning curve is required.

Adjustability

90mm of seat height range offer the perfect fit for every rider.

Saddle height adjustments are performed like on conventional systems.

Size	Saddle Height Range
Small	655 / 745 mm
Medium	700 / 790 mm
Large	740 / 830 mm
Extra Large	770 / 860 mm

Integrated Design

Light

Autodrop is over 100g lighter than a conventional dropper seatpost thanks to the integrated design.

Strong

Autodrop’s oversized elliptic structure is more resistant to stress than a conventional round post.

Functional

The reduced number of parts improves the system’s performance and durability.

Smart and Sleek

Autodrop moves the clamping system and the associated loads to the bottom of the seat tube, allowing our engineers to design a lighter seat tube that forgoes a traditional seat post clamp to eliminate the negative effects of clamping on dropper post functionality.

The elliptic shape ensures the saddle is always perfectly aligned.

The seat clamp is replaced by a simple dust wiper for improved durability and a clean look.

Strong and Light

Conventional dropper posts use round elements to be compatible with every frame on the market, leading to performance compromises and excessive weight.

Autodrop was developed with the vision of creating the lightest and strongest XC dropper post without having external compatibility dictating the boundaries of shape, size, and material choice.

Extended research on stress resistance and weight reduction for seat post application highlight the superior properties of an elliptic shape. This was the reason to develop the Autodrop seat post and seat tube interface.

Round vs. Elliptic Shape

Autodrop‘s elliptic shape reduces the loads on the seat post sliding element, improving performance and reliability while also allowing us to remove material and save weight.

Round Shape