NEW DELHI: Yamaha lists 24.5 litres of under-seat storage for the Aerox 155. That is the scooter's boot capacity, not its fuel capacity or an assurance that every full-face helmet will fit. The useful way to read the figure is alongside the seat layout, external fuel lid and the shape of the belongings that need to go inside.
| Aerox 155 detail | Official specification |
|---|---|
| Under-seat storage | 24.5 litres |
| Fuel tank | 5.5 litres |
| Seat height | 790 mm |
| Kerb weight, oil and full tank included | 126 kg |
| Minimum ground clearance | 145 mm |
| Refuelling | External fuel lid |
These figures come from Yamaha's India product page, checked on 29 October 2026. This is a storage and packaging explainer. It does not assign an ex-showroom price to the scooter because the official page's price selector did not expose a readable vehicle price during checking.
Capacity is useful, shape decides the fit
A scooter boot is an irregular space. A litre figure helps describe its total capacity, but it does not describe the clearance above a helmet's crown, the width around its shell or the room needed by an attached accessory. Yamaha presents the Aerox compartment as space for a full-face helmet and rain gear. That product claim is a reason to try the intended helmet, rather than a substitute for doing so.
For a daily office journey, the question is also what remains after the helmet goes in. A rain layer can fold around another object; a rigid lunch carrier cannot. Someone carrying both should test that combination together. Testing an empty boot with only the smallest item creates a misleading impression of the space available during a normal weekday.
The same distinction matters when the helmet stays on the rider's head during the journey. The compartment may then hold belongings that have to be removed before the helmet can be stored at the destination. Thinking through that exchange is more informative than simply calling the boot large. It shows whether the parking routine involves carrying a bag away every time.
Refuelling does not require access to the boot
The external fuel lid is a separate practical feature. It means the fuel opening is outside the under-seat compartment, so refuelling and accessing stored belongings are different operations. For a rider who keeps rain gear or work items under the seat, that separation is a useful part of the Aerox's layout.
It also explains why the storage figure and tank figure should be kept separate. Yamaha specifies a 5.5-litre fuel tank alongside the 24.5-litre compartment. Adding the two figures together would produce a meaningless luggage number. Likewise, neither figure establishes a safe luggage weight or a measured riding range.
The two-level seat is part of the package
Yamaha describes a two-level seat, placing rider and passenger positions at different levels. Its purpose in the overall package is different from that of the compartment underneath. A useful assessment therefore includes the passenger's seating position as well as whether the boot closes over the objects being carried.
The specified seat height is another separate measurement. It cannot establish how confidently a particular rider can place their feet on the ground, because body proportions, footwear and the seat's width also affect that experience. The published kerb weight similarly describes the scooter, not how manageable it will feel when being moved backwards out of a tight parking space.
The Aerox combines this practical packaging with a liquid-cooled 155cc engine and automatic transmission. Storage deserves attention even in a scooter presented around sporting performance: luggage has to be accommodated on the same weekday journeys where the rider also encounters queues, parking ramps and short stops. An engine specification alone cannot answer those routine packaging questions.
Keep equipment costs separate
A front pocket with a power socket is also listed by Yamaha, but it serves a different role from the enclosed under-seat space. Assess each location for the actual item intended to go there. Do not assume that a charging provision makes a compartment a secure place for valuables whenever the scooter is unattended.
For related ownership details, see our Aerox accessories price list and Aerox Y-Connect setup guide. The Xoom 125 and Xoom 110 comparison covers another scooter family without treating engine size as the sole measure of usefulness.
Official sources: Yamaha Aerox 155 specifications and features and Yamaha's Aerox product listing.
