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Honda ADV 350

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Make Model

Honda ADV 350

Year

2025

Engine

Four stroke, single cylinder, SOHC, 4-valve

Capacity

330 cc / 20.1 cu-in
Bore x Stroke 77 x 70.8mm
Cooling System Liquid cooled
Compression Ratio 10.5:1
Emission Euro 5+

Induction

PGM-FI electronic fuel injection

Ignition 

Fully transistorised ignition
Starting Electric
Max Power 21.5 kW / 28.8 horsepower @ 7500 rpm
Max Torque 31.5 Nm / 23.2 lb-ft @ 5250 rpm
Clutch Automatic centrifugal dry type

Transmission 

CVT
Final Drive V-Belt
Frame Steel underbone

Front Suspension

37mm Upside down forks

Front Wheel Travel 125 mm / 4.9 in

Rear Suspension

Twin shock
Rear Wheel Travel 130 mm / 5.1 in

Front Brakes

Single 256mm disc, 2 piston Nissin caliper

Rear Brakes

Single 240mm disc, 1 piston Nissin caliper
ABS 2-channel ABS
Wheels Six spoke cast aluminium

Front Tyre

120/70-15MC 56P

Rear Tyre

140/70-14MC 62P
Rake  26.5°
Trail 89 mm / 3.5 in
Dimensions Length : 2200 mm / 86.6 in
Width:     895 mm / 35.2 in
Height: 1295 mm / 51 in
Wheelbase 1520 mm / 59.8 in
Seat Height 795 mm / 31.3 in
Ground Clearance 145 mm / 5.7 in
Wet Weight 186kg / 410 lbs

Fuel Capacity 

11.7 Litres / 3.0 US gal
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From a press release issued by Honda  :

With its tough stance the ADV350 already stands out from the homogenous crowd, with rugged angles and block colours that promote the off-road look. The X-ADV is its obvious styling benchmark, which itself takes notes from Honda’s CRF series of off-road performance machines.

Practicality has not been forgotten; there’s room for two full-face helmets under the seat (now with internal light), USB socket in the glovebox and convenience of Smart Key operation. The screen is four stage height-adjustable and a new, five-inch TFT display integrates Honda RoadSync smartphone connectivity with an intuitive four-way toggle control switch.

The adventurous styling showcases the ADV350’s unique front end, the riding position offers natural control and the chassis - with its tubular steel frame - is tuned to deliver agile steering, feedback and feel. 37mm USD forks, with top/bottom motorcycle style yokes and remote reservoir rear shocks - revised for 25YM to feature spring preload adjustability - bring premium bump-absorption performance.
Lightweight 15-inch front/14-inch rear wheels wear 120/70-15 front and 140/70-14 rear block-pattern tubeless tyres, allowing the ADV350 ample grip across all conditions. A 256mm single disc is matched to a 240mm rear.

There’s plenty of acceleration on tap, for urban and highway use. With exhaust and ECU updates, the 330cc, enhanced Smart Power+ (eSP+) SOHC four-valve engine delivers peak power of 21.5kW and 31.5Nm torque.

Safety is provided in the form of standard Honda Selectable Torque Control (HSTC) and Emergency Stop Signals. For the 25YM updates, auto-cancel indicators are now also standard equipment.

The 25YM ADV350 will be available in the following colour options:
- Pearl Nightstar Black
- Mat Ruthenium Silver Metallic
- Hyper Red
- Mat Coal Black Metallic

Styling & Equipment
- Dual LED headlights lead the adventure style, set high above the front wheel and towards the edge of the body.

- New five-inch TFT display, with four-way toggle switch control and Honda RoadSync functionality

- Everyday practicality comes in the form of a (now illuminated) under-seat compartment and a four stage height-adjustable screen

- Emergency Stop Signal (ESS) warns other road users of sudden braking

The ADV350’s styling gives more than a slight taste of adventure. Dual LED headlights (all lighting is LED) are set high above the front wheel, towards the edge of the body, with the fairing sides cut out to show off the USD forks. Further accentuating the off-road feel, the painted panels are set high on blacked-out lower and rear seat cowl, giving an impression of the higher centre of gravity of machines like the X-ADV and even competition-ready CRFs.

A host of detail features are found around the ADV350 to add genuine versatility. The screen adjusts easily with a slide-lock mechanism through four stages and 133mm of travel. In the high position airflow is controlled, travelling around the shoulders to reduce fatigue during longer, higher speed journeys. For city environments – where some cooling air is often appreciated, as is open visibility – the low position is perfect.

There’s plenty of room under the seat – 48L in total – which means two full-face helmets can tuck neatly away. The compartment can be divided using a separator plate, to suit the owner’s preference and the new internal light is a useful addition. A USB socket is also found in the front left glove box, for secure smartphone charging. Seat height is an easy-to-manage 795mm. 25YM detail additions focus on increasing the ease of installing Genuine Honda Accessories, with are pre-wiring for the Fog Lights and Attachment Stays for the Floor Pipes now built in.

A new five-inch full colour TFT screen uses optical bonding to improve visibility in bright sunlight. By sealing the gap between the cover glass and TFT screen with resin, glare is reduced, and backlight transmittance improved. IOS/Android smartphone connectivity of Honda RoadSync is also an upgrade.


This feature – alongside a simplified, easy-to-use, backlit four-way toggle-switch on the left handlebar – allows straightforward, on-screen turn-by-turn navigation as well as the option (via a Bluetooth helmet headset) for the rider to make calls or listen to music. All an owner has to do is download the Honda RoadSync app from either the Play Store or the App Store, connect to the ADV350, and go.

Another convenient feature is the Smart Key, which controls the main ignition switch knob and seat locking from the rider’s pocket, and automatically locks the ADV350 when the rider walks away. It also manages the optional 50L Smart top box; with the Smart Key present the box is unlocked. An answer back switch also flashes the indicators for easy location.

The Emergency Stop Signal (ESS) system also operates (and self-cancels) the rear indicators during a hard-stop situation, alerting road users behind. The indicators also now auto-cancel in normal use.

Chassis
- Lightweight tubular steel frame, features motorcycle-style 37mm USD forks
- Remote reservoir rear shocks – now spring preload adjustable ­– deliver agile handling and natural control
- Six-spoke cast aluminium wheels run block-pattern tubeless tyres
- Disc brakes front and rear

As a scooter designed to handle the rough-road rigours of the city – and even light off-road conditions – the ADV350’s chassis is built to be confidence-inspiring. A lightweight tubular steel frame provides core strength; wheelbase is set at 1520mm, with rake of 26.5° and 90mm trail. Kerb weight is 186kg.
Motorcycle-style 37mm USD forks (with 125mm stroke) are clamped by motorcycle-style top and bottom yokes, increasing rigidity for the entire front end. A 25YM update has been applied to the twin remote reservoir shock absorbers; they are now adjustable for spring preload and offer excellent suspension reaction on a variety of road surfaces. With 130mm travel, they work a one-piece aluminium swingarm.

The wheel design is unique in the Honda scooter range. Cast aluminium and finished in black, the lightweight 15-inch front/14-inch rear use an X-shaped 6-spoke criss-cross pattern. 120/70-15 front, and 140/70-14 rear block-pattern tubeless tyres offer a supple ride thanks to wide tread width and ample air volume. A 256mm single disc performs stopping duties up front, mated to a 240mm rear, with the benefit of 2-channel ABS for braking control.

Engine
- 330cc enhanced Smart Power+ (eSP+) SOHC four-valve engine
- Peak power of 21.5kW @ 7,500rpm with 31.5Nm torque @ 5,250rpm
- New ECU settings, catalyser and O2 sensor with muffler internals – and protective cover – updated
11.7L fuel tank and 28.6km/l economy (WMTC mode) gives a potential 330km+ range
- The 330cc, enhanced Smart Power+ (eSP+) SOHC four­-valve engine achieves both high environmental performance and strong output characteristic – for use in and out of the city – through comprehensive adoption of low friction technology.

Peak power of 21.5kW @ 7,500rpm is matched to 31.5Nm torque @ 5,250rpm. Bore and stroke are set at 77mm x 70.8mm, with compression ratio of 10.5:1. A roller­-type rocker arm, plain journal crank bearings and sealed crankcase deliver long-term reliability together with strong performance. To enhance piston cooling, an oil jet, as used on the CRF450R, sprays oil right to the back of the piston, advancing ignition timing and improving combustion performance. Oil capacity is 1.8 litres.

Air is supplied via a 5.5 litre airbox and a 36mm throttle body feeds fuel/air mixture to 28mm inlet valves. The intake port draws air in efficiently, using a ‘tumble’ flow within the cylinder for consistent fuel combustion and exhaust gases are expelled via a straight exhaust port.

Internal friction is reduced through a 5mm offset cylinder, hydraulic cam chain adjuster and use of a scavenger pump. Used on high performance machines, the pump lowers the internal pressure within the engine, reduces oil agitation and decreases pumping losses and internal rotational friction.
A balancer shaft further reduces vibration and contributes to a smooth, enjoyable ride. An automatic centrifugal clutch works V­-Matic transmission (with ratios set for fast low speed reaction and smart acceleration) and belt final drive.

The ADV350’s engine is also equipped with two level Honda Selectable Torque Control (HSTC). The system detects any difference between the front and rear wheel speeds, calculates the slip ratio and then controls engine torque via the fuel injection to regain rea wheel traction. HSTC can be switched ON/­OFF via a switch on the left handlebar. A ‘TC’ indicator in the display blinks when the system is managing the grip.

Alongside updated ECU settings, the muffler’s internal structure (as well as its protective outer cover) has been revised, the catalyser upgraded and an O2 sensor added to ensure forward-looking compliance. Fuel economy is a frugal 28.6km/l (WMTC mode); the 11.7L tank capacity gives a potential 330km+ range.

Accessories
A full range of Genuine Honda Accessories are available for the ADV350 either individually or in carefully curated packs for user convenience:

The Comfort Park is versatile collection of parts designed to enhance rider comfort and convenience:
- Deflector Set
- Heated Grips
- Console Bag
- High Screen

The Style Pack builds in additional protection and looks:
- Optional Seat
- Stainless Plate
- Handlebar Holder

The Adventure Pack is a robust, purpose-built accessory set designed to significantly boost the bike’s off-road appearance and enhance its road presence and visibility:
- Side Pipes
- Led Fog Lights and Attachments

The Urban Pack is designed to enhance urban commuting capability by combining cutting-edge technology with practical, city-focused features and increasing carrying capacity:
- Rear Carrier
- 50L Smart Top Box with electronic opener and backrest
- Aluminium Cover for Top Box
- Loud Security Buzzer