Specification sheet — Yamaha

Yamaha Lexi LX 155 specifications

A premium 155 cc maxi-scooter with a 4.2 L tank and a 770 mm seat.

MarketIndonesia CategoryScooters SourceYamaha Motor Indonesia
Yamaha Lexi LX 155 specification plate
Displacement
155.1 cc
Peak power
11.3 kW / 8,000 rpm
Peak torque
14.2 N·m / 6,500 rpm
Curb weight
Standard: 116 kg ; S Version: 117 kg ; Connected/ABS: 118 kg
Seat height
770 mm
Fuel tank
4.2 L

Overview

The published sheet lists a 155.09 cc engine, peak power of 11.3 kW / 8,000 rpm, peak torque of 14.2 N·m / 6,500 rpm. It carries a curb weight of Standard: 116 kg ; S Version: 117 kg ; Connected/ABS: 118 kg, a 770 mm seat height and a 4.2 L tank.

On the published figures it works out to 9.7 kW per 100 kg, above the median for the other 5 scooters in this database (8.7 kW per 100 kg).

Market and trim notes

This sheet covers the Yamaha Lexi LX 155 as listed in the Indonesian distributor’s current catalogue. Market-specific equipment can differ from the same nameplate in another country, so the figures are not interchangeable.

Full specification

Every row below is a published figure. Rows the manufacturer does not publish are marked rather than estimated.

Engine and performance

Engine typeSOHC
Displacement155.09 cc
Bore × stroke58.0 mm x 58.7 mm
Compression ratio11.6 : 1
Fuel systemInjeksi
Maximum power11.3 kW / 8,000 rpm
Maximum torque14.2 N·m / 6,500 rpm
StartingElectric Starter
IgnitionTCI/ Transistor
LubricationWet Sump
Oil capacityTotal: 1 L ; Berkala: 0.9 L

Transmission and final drive

TransmissionAutomatic
ClutchSingle Dry Clucth
Final driveV-belt derived

Chassis, suspension and brakes

FrameUnderbone
Front suspensionTelescopic
Rear suspensionUnit Swing
Front brakeDisc Brake
Rear brakeDrum Brake
Front tyre90/90-14M/C 46P
Rear tyre100/90-14M/C 57P

Dimensions, weight and capacity

Length × width × height1970 x 720 x 1135 mm
Wheelbase1350 mm
Ground clearance135 mm
Seat height770 mm
Curb weightStandard: 116 kg ; S Version: 117 kg ; Connected/ABS: 118 kg
Fuel tank4.2 L

What the numbers mean

The 770 mm seat is a middle-of-the-road height: most riders will get the balls of both feet down.

At Standard: 116 kg ; S Version: 117 kg ; Connected/ABS: 118 kg it is manageable at walking pace but heavy enough to notice on a slope.

The 4.2 L tank is small, in keeping with a short-range commuter; expect regular fuel stops on longer rides. The manufacturer does not publish a consumption figure, so this page does not quote a range.

Tyres are 90/90-14M/C 46P front and 100/90-14M/C 57P rear. Check that your local shop stocks both before a long trip. Small rims are less widely stocked, so confirm availability locally.

Closest alternatives

ModelCapacityPowerTorqueWeightSeat
Yamaha NMAX 155155.1 cc11.3 kW / 8,000 rpm13.9 N·m / 6,500 rpm130 kg (Standard & Connected Version), 132 kg (Connected/ABS Version)765 mm
Yamaha NMAX Turbo155.1 cc11.3 kW / 8,000 rpm14.2 N·m / 6,500 rpm135 kg770 mm
Yamaha Aerox Alpha155.1 cc11.3 kW (15.4 PS) / 8,000 rpm14.2 N·m / 6,500 rpm130 kg (TURBO & TURBO Ultimate), 127 kg (CyberCity), 124 kg (Standard)790 mm

Nearest alternatives by category and capacity in this database. These are published figures, not a road test or a recommendation.

Ownership and maintenance notes

  • The V-belt and rollers are the parts that change the feel of a CVT scooter. Inspect them at the interval in the owner's manual, and sooner if acceleration flattens or the engine revs without matching speed.
  • Engine oil and the air filter do most of the work in keeping a small scooter consistent. Check the oil level cold, on level ground, and use the grade listed for the model.

Source and verification

Figures are taken from Yamaha Motor Indonesia, the Indonesian distributor, on 13 November 2026.

Source page: yamaha-motor.co.id/product/lexi-lx-155/.

Final drive is inferred from the published layout rather than printed as a separate field.

Wording is quoted as published; spacing and unit symbols are normalised. Specification databases go stale: if a figure here differs from the current distributor page, the distributor page wins, and this sheet records what was published on the verification date.