Honda CB300R Maintenance Schedule and Service Intervals

This is the maintenance schedule and associated service intervals for the Honda CB300R.

The Honda CB300R is naked bike with a 286cc single-cylinder engine. It was released in 2018.

The CB300R is generally considered an entry-level motorcycle. It doesn’t set the world on fire with its 23 kw / 31 hp engine, but it’s predictable, efficient, and easy to ride.

The CB300R replaced the CB300F (a basically identical bike other than in styling), and is a sibling to the Honda CBR300R.

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Honda CB300R black rear profile diagonal

What you need to service the Honda CB300R

If you want to service your CB300R, you need some basic maintenance tools.

Aside from that, you need the following consumables:

Part	Honda CB300R spec
Oil	Honda recommends 1.5L (1.6 US qt) of SAE 10W-30, JASO T 903 standard MA, API classification SG or higher such as Pro Honda GN4 10W-30. Use a torque wrench to tighten the bolt to 24 Nm (18 lb-ft).
Oil filter	Honda’s standard part number for the oil filter is 15410-KYJ-901 (used on many Hondas). You can also use Hiflopro HF103 for the oil filter. Use a torque wrench to tighten it to 12 Nm (9 lb-ft).
Air filter (OEM)	The OEM air filter part is 17210-K94-T00. You can also use the K&N alternative air filter, whose part number is HA-2819, which is often more available.
Spark plugs	Use NGK spark plug part SIMR8A9. Use a spark plug gapping tool to set the gap to 0.8-0.9mm.
Chain maintenance	To maintain your chain, Motul chain paste is quite well-liked. There’s also the Motul chain care kit which is affordable and good.
Brake fluid	You can use any DOT 4 oil, but Honda recommends Honda DOT 4.
Brake pads (front)	OEM front brake pads are part number 06455-K98-E01. Alternative EBC double-hardened front brake pads have part number FA679HH. Note these parts are unique to the CB300R (not CB300F, or CBR300R).
Brake pads (rear)	OEM rear brake pads are part number 06435-K98-E01. Alternative EBC double-hardened rear brake pads have part number FA496HH.
Coolant	Use Honda Long-life Coolant, which is based on ethylene glycol.
Grease	Stock up on lithium soap-based grease and silicone grease to keep pivots and moving parts lubricated and protected.

Honda CB300R parts for maintenance

Honda CB300R Maintenance Schedule

Below is the maintenance schedule for the Honda CB300R.

Per Honda, these are the difficulty levels for various bits of service

X: Intermediate. “We recommend service by your Honda dealer, unless you have the necessary tools and are mechanically skilled. Procedures are provided in an official Honda Service Manual”
XX: Technical. “In the interest of safety, have your motorcycle serviced by your dealer.”

The maintenance for the Honda CB300R is broken into two sections: Emission-Related Items and Non-Emission-Related Items.

Maintenance Procedures:

I: Inspect and clean, adjust, lubricate, or replace, if necessary
R: Replace
L: Lubricate
C: Clean

Items		x 1000 mi	0.6	4	8	12	16	20	24
Emission-Related Items		x 1000 km	1	6.4	12.8	19.2	25.6	32	38.4	Regular Replace
Fuel Line	X				I		I		I
Throttle Operation	X				I		I		I
Air Cleaner*2						R			R
Crankcase Breather*3				C	C	C	C	C	C
Spark Plug		Every 16,000 mi (25,600 km): I Every 32,000 mi (51,200 km): R					I
Valve Clearance	X						I
Engine Oil			R		R		R		R	1 Year
Engine Oil Filter			R				R
Engine Idle Speed	X				I		I		I
Radiator Coolant *5					I		I		I	3 Years
Cooling System	X				I		I		I
Secondary Air Supply System	X						I
Evaporative Emission Control System*4	X						I
Non-Emission-Related Items
Drive Chain		Every 600 mi (1000 km): I L
Brake Fluid*5				I	I	I	I	I	I	2 Years
Brake Pads Wear				I	I	I	I	I	I
Brake System					I		I		I
Brake Light Switch					I		I		I
Headlight Aim					I		I		I
Clutch System				I	I	I	I	I	I
Side Stand					I		I		I
Suspension	X				I		I		I
Nuts, Bolts, Fasteners	X				I		I		I
Wheels/Tires	XX				I		I		I
Steering Head Bearings	XX				I		I		I

Honda CB300R maintenance schedule

Notes:

At higher odometer readings, repeat at the frequency interval established here.
*2: Service more frequently when riding in unusually wet or dusty areas.
*3: Service more frequently when riding in rain or at full throttle.
*4: 50 STATE (meets California).
*5: Replacement requires mechanical skill.

Tyre size and tyre pressure for the Honda CB300R

The Honda CB300R has the following tyres and tyre sizes standard, as well as the following suggested tyre pressures.

Tyre	Size	Brand(s)	Tyre pressure
Front	110/70R17M/C 54H	DUNLOP GPR-300F M	29 psi (200 kPa, 2.00 kgf/cm2)
Rear	150/60R17M/C 66H	DUNLOP GPR-300 M	33 psi (225 kPa, 2.25 kgf/cm2)

Tyres and tyre pressures for the CB300R

About the Honda CB300R

The Honda CB300R made its debut in a highly competitive market segment.

Its light weight, low seat, and appealing power made it a compelling prospect for beginners, and not too boring for more experience riders taking it out for milk runs.

The CB300R is a “Neo-Sports Café” motorcycle, which means it has a round headlight and kind of modern mechanical naked looks. It looks similar, to be fair, to the much bigger CB1000R.

Honda used a tubular-steel frame with pressed-steel components on the CB300R, but deliberately kept the metal thin in order to keep weight down. It seems to have worked out well since the CB300R weighs in at only 144 kg (317 pound), fully fuelled and ready to go.

The suspension is provided by 41mm stems with 5.1 inches of travel up front and cast aluminium wheels. On the back you get a monoshock with 4.2 inches of travel. You can adjust preload on the back, but that’s it.

The bike’s braking is provided by a single disc up front, and ABS is standard on all bikes as of 2020 though was an option previously in some markets.