Comfort on an underbone is not softness - it is the geometry and weight you live with at every red light. Using only manufacturer-published numbers (retrieved 23 September 2026), here is the comfort ranking and what each number means.
The four comfort numbers
- Seat height - lower means easier stops, especially with a passenger.
- Kerb weight - lighter means easier balance and parking.
- Wheelbase - longer means more stability, shorter means easier u-turns.
- Fuel tank and claimed economy - fewer fuel stops and less heat under you.
The verified comfort table
| Model | Seat | Weight | Wheelbase | Claimed economy |
|---|---|---|---|---|
| Honda Future 125 FI | 756 mm | 104 kg | 1258 mm | 1.47 L/100 km |
| Honda Wave RSX | 760 mm | 98 kg | 1227 mm | 1.56 L/100 km |
| Honda Blade | 769 mm | 98-99 kg | 1217 mm | 1.85 L/100 km |
| Honda Wave Alpha 110 | 770 mm | 96 kg | 1224 mm | 1.72 L/100 km |
| Honda Super Cub C125 | 780 mm | 109 kg | 1243 mm | 1.55 L/100 km |
| Honda CT125 | 800 mm | 117 kg | 1258 mm | 1.61 L/100 km |
Yamaha does not publish seat heights for the Sirius RC or Exciter 155 on the retrieved pages, so they are not ranked rather than guessed.
The verdict
The Future 125 FI is the comfort number-cruncher: lowest seat in the verified range, the best claimed economy (1.47 L/100 km), a long 1258 mm wheelbase for stability and the biggest practical tank at 4.6 litres. The Wave RSX is the light-and-low runner-up with injection and a helmet U-box.
The Wave Alpha wins the simplicity class - 96 kg, no bad habits, and the cheapest running costs of the group.
The CT125 inverts the table on purpose: its 800 mm seat and 117 kg are comfortable only for tall riders - who should read our tall riders guide.
Renting comfortably
Our price-published rental classes are the Honda Wave and Yamaha Sirius at 150,000 VND per day - contact us to confirm current availability. Insurance is not included in rentals - customers arrange their own.