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Hero · Overhead-cam four-stroke single, wet sump, separate gearbox oil, CVT belt drive

Maestro (111 cc)

Library entry covers 2013-2023

27 factory 48 guideline

Published source

Hero Maestro Owner's Manual, Periodic maintenance schedule pp.53-54 (ManualsLib 2320177)

Factory source. Covers Hero Maestro owner's manual (Maestro Dlx. CBS and Std.; no model year verified in the pages read).

75 items for a 2014 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, screw/locknut adjusters
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Fuel injection
Cooling: Air / oil cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Separate gearbox oil
Clutch control: Automatic or semi-automatic
Final drive: Belt CVT, scooter automatic
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Disc, hydraulic
Rear brake: Drum (or band / belt rim)
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2014 Hero Maestro (111 cc)

On the road: every 300 km

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 500 km

2 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline

Every 1,600 km or 6 months

2 items

Adjust rear drum brake and rod / cable linkage

Brakes

Guideline
Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 km

17 items

Belt case and kick starter driven gear (clean, lubricate)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Engine oil (top up)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): after the free services, every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Headlight aim (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Nuts, bolts and fasteners (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Spark plug (inspect, clean, adjust)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Suspension (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Valve clearance (inspect, adjust)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Air cleaner drain tube (inspect, clean)

Fuel and air

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Fuel line (inspect)

Fuel and air

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Secondary air filter (clean)

Fuel and air

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Throttle operation and carburetor (inspect, adjust)

Fuel and air

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Battery voltage (inspect)

Ignition and electrics

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Steering head bearings (inspect, adjust)

Front end

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Brake light switch (inspect)

Brakes

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Brake shoe wear (inspect)

Brakes

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Brake system and pivot arm (lubricate)

Brakes

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Wheels and tires (inspect)

Wheels and tires

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): every 3,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.

Every 5,000 km or 12 months

8 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Adjust automatic / semi-automatic clutch

Primary and gearbox

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check brake pads and discs

Brakes

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 6,000 km

6 items

Drive belt (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 3rd and 5th free services, then every 6,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Engine oil (replace)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): replace at the 1st, 3rd and 5th free services and top up at the 2nd, 4th and 6th; after the free services top up every 3,000 km and replace every 6,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Engine oil strainer screen (clean)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 1st, 3rd and 5th free services, then every 6,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Muffler and catalytic converter (inspect, check emission)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 3rd and 5th free services, then every 6,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Secondary air injection system (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 3rd and 5th free services, then every 6,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Clutch shoe wear (inspect)

Primary and gearbox

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 3rd and 5th free services, then every 6,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.

Every 6,500 km or 12 months

3 items

Inspect, clean and gap spark plugs

Engine

Guideline
Inspect CVT drive belt, rollers / sliders and clutch shoes

Final drive

Guideline

Typical scooter interval. Your owner's manual figure governs; check belt width against the service limit.
Lubricate brake cam spindles, check linings and drums

Brakes

Guideline

Every 8,000 km or 12 months

2 items

Change engine oil

Engine

Guideline

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.
Replace oil filter

Engine

Guideline

Every 9,500 km or 12 months

6 items

Clean / inspect air filter

Fuel and air

Guideline

Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 10,000 km

1 item

Final drive oil (replace)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 4th free service, then once every 10,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.

Every 12,000 km

2 items

Spark plug (replace)

Engine

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 5th free service, then every 12,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.
Steering head bearings (lubricate)

Front end

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 5th free service, then every 12,000 km. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.

Every 13,000 km or 2 years

1 item

Check and adjust valve clearances

Engine

Guideline

Every 15,000 km

1 item

Air cleaner element (replace)

Fuel and air

Factory

Factory: Periodic maintenance schedule (Hero Maestro owner's manual, printed pp.53-54, ManualsLib viewer pp.56-57): at the 6th free service, then every 15,000 km; do not open unless there is a drivability problem. Free service columns as printed: 1st 500-750 km or 60 days; 2nd 3,000-3,500 km; 3rd 6,000-6,500 km; 4th 9,000-9,500 km; 5th 12,000-12,500 km; 6th 15,000-15,500 km (each within the next 100 days). After the free services the chart gives "once in every" 3,000 / 6,000 / 9,000 / 12,000 / 15,000 km columns. Key: I inspect; A adjust; C clean; R replace; T top up; L lubricate; E check emission.

Every 16,000 km or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change gearbox oil

Primary and gearbox

Guideline

Every 19,500 km or 2 years

4 items

Replace air filter element

Fuel and air

Guideline
Synchronize throttle bodies

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 19,500 km or 3 years

1 item

Replace CVT drive belt

Final drive

Guideline

Typical scooter interval, or sooner if the belt is cracked, glazed or below its width limit.

Every 24,000 km or 3 years

1 item

Change fork oil

Front end

Guideline

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 24,000 km

1 item

Replace brake linings / skim drums (wear based)

Brakes

Guideline

Every 25,500 km or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 32,000 km or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 38,500 km or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 2 years

3 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Replace brake fluid

Brakes

Guideline

Every 4 years

3 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

1 item

Replace tires on age (regardless of tread)

Wheels and tires

Guideline

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.