Honda 2021 SH350i Scooter Review Specs

Honda 2021 SH350i Scooter

Honda 2021 SH350i Scooter is the epitome of a two-wheeled world that has provided fast, easy transportation to many owners across Europe for decades. Their class-leading, premium performance is reliable, powerful engines, surface floor comfort and durability that provide significant, 16-inch diameter wheels. It’s wrapped up in ageless, compact, and undoubtedly SH aesthetics.

Honda 2021 SH350i Scooter – Features

Honda 2021 SH350i Scooter


Honda 2021 SH350i Scooter offers a new ‘Better Smart Power +’ engine in the SH350i offers excellent environmental performance and incredible power features, using a wide range of friction reduction technology.

The peak power of the liquid-cooled, fuel-injected SOHC four-valve unit improves from 18.5kW to 21.6kW @ 7,500rpm, with maximum torque increasing to 32Nm @ 5,250rpm, thanks to an increase in 50cc capacity, 230cc to 339cc in total curb weight). Demography comparisons clearly show the whole situation, showing how power and torque increase significantly beyond 3,500rpm. Stopping the SH350i will reach 200m in 10.2 seconds.

To get extra ccs, the bore is increased from 72mm to 77mm while the stroke is increased to 70.7mm. The compression ratio is set to 10.5: 1. The length and timing of valve lifts have been improved to take advantage of the extra capacity. Inlet valve closure and exhaust valve opening/closing times are delayed by 5% compared to the previous model. The amount of lift has also been increased by 0.3 mm. The opening duration of the intake valve is constant.

Honda 2021 SH350i Scooter

The crankshaft has also been rebuilt and is now 10% lighter. It was completed without any change in the diameter of the magazine while still maintaining the strength and rigidity required to transport the growing product. Long-term dependence and performance are provided by roller-type rocker arms, simple journal crank bearings and sealed crankcases. An oil jet, as used on the CRF450R, shoots oil directly into the back of the piston to improve piston cooling, advance ignition timing, and increase combustion efficiency. The volume of oil is 1.85 liters.

Throttle bodies are increased from 34mm to 36mm, while inlet valves are increased from 1mm to 28mm which increases efficiency. The 5.5-liter airbox provides essential air. In addition, the intake and exhaust ports have been completely rebuilt. Taking advantage of the turbulent solid flow inside the cylinder for more permanent fuel burning, the intake port now moves more efficiently into the air. Exhaust gases are now discharged directly through the exhaust port instead of the curved port used in the earlier design, improving efficiency.

The revised muffler now has two single chambers instead of three to reduce emissions resistance. Changes in the pipe connecting the expansion chamber, as well as the size and position of the catalyst, increase gas flow and purification.

Internal friction is reduced using a 5mm offset cylinder, hydraulic cam chain adjuster, and a scavenger pump. When used on high-performance machines, the pump reduces the internal pressure of the engine, reduces oil movement, and reduces pumping losses and internal rotating friction. A newly implemented balance shaft further reduces vibration and promotes a smooth and pleasant ride.

A V-Matic gearbox (with the calibrated ratio for fast low-speed response and intelligent acceleration) and belt final drive powered by an automatic centrifugal clutch. The engine core has been changed to meet the new bodywork of the 2021 upgrade.

The engine on the SH350i is equipped with Honda Selectable Torque Control (HSTC). This technology detects any difference between the speed of the front and rear wheels, calculates the ratio of slip, and then adjusts the engine power by fuel injection to restore the traction of the rear wheel. ۔ HSTC is activated and deactivated via a switch on the left handlebar. When the system is working to manage the grip, the digital display has a ‘T’ sign.

Honda 2021 SH350i Scooter

The engine is now also compatible with EURO5, which on January 1, 2020, introduced much stiffer engine emissions requirements than EURO4. These standards include a significant reduction in allowable carbon monoxide emissions, a 40% reduction in total hydrocarbon emissions, strict detection of incorrect fires, and enforcement of particulate matter restrictions.

Fuel efficiency is a modest 30km / l (WMTC mode). The 9.1L tank size provides a potential range of 270km.

Styling and Equipment

Honda 2021 SH350i Scooter is a scooter that quickly establishes its presence on the road with a brand new design that follows the style of its best-selling younger sister, the SH125i, which includes style keywords. There are ‘muscular’ and ‘surface tension.’ Its redesigned ‘face’ distinguishes its LED headlamp now has a central beam that separates the twin dip beams. In contrast, the position lights have a handlebar to create a sleek, modern frontal hallmark—located on the high ground at Nassel. The modified LED taillights and indicators are placed precisely behind the passenger grab rail made of aluminum.

Of course, a function is just as crucial as a form for SH. The riding beam adjusts to the size of different riders while providing a comfortable, upright position and excellent all-around visibility. The total length of the machine is 2160mm, the width is 742mm, and the height is 1161mm. The required ground clearance is 131 mm.

Underneath the seat is enough for a full-face helmet, and the seat height is manageable 805mm (only 5mm higher than the SH125 / 150). There is also a USB Type-C port for charging the mobile device. The standard SH flat floor (435 mm wide) facilitates weight lifting while also helping the user to step in and off. On the front panel, the folding utility hook provides convenience.

All warning lights, including HSTC and ABS functionality, are neatly configured around the central digital speedo/odometer display on the new LCD dash. All dash functions are performed with the A / B buttons on the left handlebar.

The front and rear indicators of the SH350i now incorporate the function of the automatically canceled emergency stop signal. When ABS detects severe brakes, danger lights warn other road users.

Honda 2021 SH350i Scooter

The Smart Key, which can handle the primary ignition switch knob and compartment locking, as well as the optional 35L top box, adds to the ease of a busy life on the go. The box is opened using a smart key in the rider’s pocket and locks automatically when the rider leaves. It can also be easily locked with a key.


The SH350i’s well-proven chassis aims to provide agility and comfort in all riding conditions. For the newer model, improved pipe diameter, wall thickness, and the material of the frame parts increase the rapid stability and comfort while saving 1 kg in frame weight.

35mm telescopic forks, dual rear shock observers, a cast aluminum swingarm, and an olive link system under the engine help sense and absorb collisions.

The rack and trail are set at 27 ° 5 ‘/ 99mm, with a 45 ° turn radius between the 1452mm wheelbase and the handlebar. The curb weighs 174 kg.

The front tires are 110 / 70-16, and the rear tires are 130 / 70-16; the two-channel ABS operates 256mm single disc brakes in the front and 256mm single disc brakes in the rear.

Honda 2021 SH350i Scooter – Technical Specifications


Type Liquid-cooled 4-stroke SOHC single
Engine Displacement (cm³) 330cc
No. of Valves per Cylinder 4
Bore x Stroke (mm) 77 x 70.7mm
Compression Ratio 10.5:1
Max. Power Output 21.6kW @ 7,500rpm
Max. Torque 32Nm @ 5,250rpm
Oil Capacity 1.85L

Fuel System

Carburation PGM-FI electronic fuel injection
Fuel Tank Capacity 9.1L
CO2 Emissions WMTC 77.8 g/km
Fuel Consumption 30km/litre

Electrical System

Starter Electric
Battery Capacity 12V-11.6AH


Clutch Type Automatic; centrifugal
Transmission Type V-Matic
Final Drive V-Belt


Type Tubular Steel Underbone


Dimensions (LxWxH) 2,160 x 742 x 1,161mm
Wheelbase 1,452 mm
Caster Angle 27.5°
Trail 99mm
Seat Height 805mm
Ground Clearance 157.8mm
Kerb Weight 174kg
Turning radius 2.2m


Type Front 35mm telescopic fork
Type Rear Dual-damper unit swingarm


Rim Size Front 16 x MT2.75 U-section 6-spoke cast aluminium
Rim Size Rear 16 x MT2.75 U-section 6-spoke cast aluminium
Tyres Front 110/70-16
Tyres Rear 130/70-16


ABS System Type 2 channel
Front 256mm single disc with two-piston caliper
Rear 256mm single disc with single-piston caliper

Instruments & Electrics

Instruments LCD with Speedometer, fuel gauge, temperature gauge, pointer-type, clock, two trip meters, fuel consumption gauge, Honda SMART Key indicator.
Headlight LED
Taillight LED