Rear Passenger Seat Cushion for BMW S1000RR Double R HP4 2009-2018

This rear passenger seat cushion is a replacement pillion seat made for BMW S1000RR Double R HP4 motorcycles from 2009 to 2018. It combines a sponge cushion, a PU leather cover and an injection-moulded ABS bottom plate, giving the rear rider a proper seated position instead of the bare tail section. The seat is described as waterproof, wear-resistant and shock-absorbing, which covers the everyday realities of road riding: spray from wet surfaces, repeated contact from clothing and boots, and the vibration that travels through a sports bike. A locking key set is included so the seat can be secured in place. The manufacturer notes that this is not a BMW-branded product, but a rear leather seat bag intended for the listed models.

Features and Construction

The seat is built from three stated layers: sponge, PU leather and an injection ABS bottom plate. Each plays a different role in how the cushion sits and behaves on the bike. The locking mechanism adds a security element that a plain push-fit pillion pad does not offer. Because the source text gives no further specification beyond these materials and the stated functions of waterproofing, wear resistance and shock absorption, the description stays within those limits.

Material and Build

The sponge layer forms the cushioning that the passenger sits on. PU leather covers the outside, and the source text states it is waterproof and wear-resistant, so it is suited to a bike that sees regular use in mixed weather. The injection ABS bottom plate is the rigid base that holds the shape of the seat and provides the mounting structure. Together these three materials make up the whole of the construction as described, with no additional layers or coatings mentioned by the manufacturer. The locking key set supplied with the seat is part of how the assembly is secured rather than a separate accessory.

Size and Practical Fit

The source text does not list any measurements, dimensions or weight for this seat cushion. What it does state clearly is the vehicle fitment: BMW S1000RR Double R HP4 models from 2009 to 2018. That is the practical sizing information a buyer needs, because the seat is shaped for that specific tail unit rather than being a universal pad. Anyone unsure about compatibility with a particular year or variant should check the listed model range before ordering. The option shown is the L specification in the rear seat with lock configuration.

Uses and Placement

This is a rear seat, so its main role is carrying a passenger on the pillion position. It also suits riders who want the rear of the bike to look complete when the seat is fitted, and those who prefer a lockable seat rather than one that simply rests in place. Because the fitment is model-specific, the intended use is narrow and clearly defined.

Event or Professional Use

Track days, club events and organised rides often involve a pillion passenger or a second rider, and a seat that locks into position is easier to manage in a paddock or pit area where the bike is left unattended between sessions. The waterproof and wear-resistant cover helps the seat cope with being loaded and unloaded repeatedly, and the ABS base plate gives it enough rigidity to be handled without flexing. For riders who swap between a solo tail cover and a pillion seat, the locking key set makes the change straightforward.

Everyday Home Use

For everyday road riding, the sponge cushion softens the contact between the passenger and the tail unit, and the shock-absorbing function is aimed at reducing the vibration that reaches the rear seat. The PU leather surface can be wiped down after a ride in wet or dusty conditions, which keeps the seat presentable without special products. When the bike is parked, the locking mechanism holds the seat in place, so it does not need to be removed and stored. This makes it a practical choice for riders who carry a passenger regularly rather than only on special occasions.

Benefits and Buying Value

The value here comes from combining three functions in one part: a cushioned pillion seat, a lockable fitting and a cover material stated to resist water and wear. There is no price or savings claim in the source text, so the buying case rests on suitability and fitment rather than cost comparisons.

Reuse and Low Maintenance

Because the cover is stated as waterproof and wear-resistant, routine care is limited to wiping the surface clean with a damp cloth. The ABS base plate is a solid moulded component, so it does not need conditioning or treating. The seat can stay fitted to the bike between rides, secured by the locking key set, which reduces the handling and storage that a loose pillion pad would require. No specialist cleaners or treatments are specified by the manufacturer, so simple cleaning is enough.

Why Choose This Product

This seat is aimed at owners of BMW S1000RR Double R HP4 models from 2009 to 2018 who need a rear passenger seat with a locking mechanism. The combination of sponge padding, PU leather and injection ABS base plate is stated in the source text, as are the waterproof, wear-resistant and shock-absorbing functions. It is an aftermarket part and not a BMW-branded item, which is stated plainly by the manufacturer. Buyers who want a model-specific pillion seat with a lock rather than a universal cushion will find the fitment and the included key set are the main reasons to choose it.