Motorcycle chain
Motorcycle chain maintenance: clean, lube and adjust
Clean and lube a motorcycle chain every 300 to 500 miles and after rain, check slack every 500 miles, and replace chain and sprockets together at the wear limit.
Motorcycle tires
Motorcycle tires last about 3,000 to 15,000 miles, according to Harley-Davidson, and they age out even with tread left: manufacturers typically recommend replacing a tire older than 6 years, and Michelin sets the outer limit at 10 years from the DOT date. By Michelin's figures, sport tires can wear out below that range and touring tires can last beyond it, and on average the rear tire wears out at least twice as fast as the front.

Motorcycle tires last about 3,000 to 15,000 miles on average, according to Harley-Davidson's tire age FAQs. The range is wide because the tire's design matters more than anything else: a soft sport compound buys grip with tread life, and a hard touring compound does the opposite.
Michelin states that no reliable universal mileage guide exists for motorcycle tires, and then gives its own planning figures by tire type on Michelin Canada's tire change page. The miles in the table below are converted from Michelin's kilometers and rounded.
| Tire type | Michelin figure (km) | About (miles) |
|---|---|---|
| Sport | 3,000 to 8,000 km | 1,900 to 5,000 mi |
| Sport-touring | 15,000 to 25,000 km | 9,300 to 15,500 mi |
| Touring | 30,000 km and more | 18,600 mi and more |
Source: Michelin Canada, accessed November 2026. Miles converted at 1.609 km per mile.
Motorcycle tires age out between 6 and 10 years after they were made, whatever the tread looks like. Rubber deteriorates with age, from ozone, heat and UV exposure according to Michelin, so a tire with plenty of tread can still be past its life. Harley-Davidson notes that manufacturers typically recommend replacing a motorcycle tire that is more than 6 years old.
Michelin draws the line later but adds a check: after 5 years a tire should be examined every year by a professional, and any tire still on the bike 10 years after the date on its DOT code should be changed regardless of tread, according to Michelin USA. Michelin counts the years from the manufacture date, not from the day the tire was fitted.
| Source | Age guidance | What it means for you |
|---|---|---|
| Harley-Davidson | Manufacturers typically recommend replacing after 6 years, regardless of tread | The earliest rule: plan a new tire at 6 years even on a low-mileage bike |
| Michelin | Yearly professional check after 5 years | From year 5 the tire needs a trained eye, not just a glance at the tread |
| Michelin | Change at 10 years from the DOT date, regardless of tread | The hard outer limit, counted from manufacture, not from fitting |
Sources: Harley-Davidson and Michelin USA, accessed November 2026.
The date code is the last part of the DOT code on the sidewall: four digits giving the week and then the year the tire was made. Harley-Davidson gives the example 1016, a tire made in the tenth week of 2016.
Reading it takes two steps: the first two digits are the week, the last two are the year. A tire stamped 2223 was made in the 22nd week of 2023, so it reaches Harley-Davidson's 6-year mark in mid 2029 and Michelin's 10-year limit in mid 2033. That is why Michelin counts from the manufacture date on the sidewall, not from the day the tire was bought or fitted.
A motorcycle tire is done when its tread reaches the wear bars, the small raised blocks molded into the grooves. Michelin calls 2/32 inch, about 1.6 mm, the wear limit and strongly advises changing the tire before it gets there, according to Michelin USA.
The legal minimum depends on where you ride. Harley-Davidson puts the legal limit at typically 1/32 inch, about 0.8 mm, so check the rule where your bike is registered. In the UK the limit for motorcycles over 50cc is 1 mm across three quarters of the tread width, with tread visible on the rest, according to TyreSafe.
Michelin also lists damage that ends a tire immediately, whatever the tread depth: a cut that exposes the cords, a bulge in the sidewall or tread, the tread separating from the carcass, and damage from riding flat. Michelin also lists deformation or cracks in the tread, shoulders or sidewalls as signs to have checked.
The rear tire wears out first because of weight distribution, power delivery and heavy braking, the three reasons Dunlop gives. On average a rider goes through at least two rear tires for every front, according to Dunlop, which adds that the ratio is not fixed for every make and model.
A powerful bike adds to the strain: Dunlop notes that hypersport motorcycles work their tires harder simply because they demand more grip. Two rears per front also means the two tires rarely reach the end of their life together, so each one needs its own record of when it was fitted.
Pressure is the factor a rider controls most directly, and it shows on the tread. An overinflated tire wears along the center, and an underinflated or overloaded one wears the shoulders faster and can cup, according to Dunlop. Michelin asks for a pressure check twice a month, with the tires cold, at the pressure in the owner's manual rather than the maximum printed on the sidewall.
Which limit you reach first depends on how far you ride in a year. Example calculation: a rider covering 3,000 miles a year on sport-touring tires at the low end of Michelin's range, about 9,300 miles, wears out the rear in about 3 years. At two rears per front, the front would last about 6 years on tread, which is exactly where Harley-Davidson's age limit falls. For that rider the front tire is replaced by age, not by wear.
A rider covering 10,000 miles a year on the same tires reaches the rear wear bars in under a year and never sees the age limit. So the right reminder for a tire is two reminders: one by distance for the wear, one by date for the age. WrenchTime, a maintenance log for iPhone that treats motorcycles as first-class vehicles, schedules a tire change by date, by distance or both, and treats whichever comes first as the one that matters.
No: a motorcycle tire 10 years past the date on its DOT code should be changed regardless of the tread it has left, according to Michelin USA, and Harley-Davidson draws the line earlier, at 6 years. Rubber deteriorates with age even when the tread looks fine, which matters most on a motorcycle, where two small contact patches carry the whole machine through every corner.
Storage does not stop the clock. A tire that sat on a bike in a garage for years ages from its manufacture date like any other, so a bike bought after a long layup may need new tires before its first ride, whatever the tread shows. Storing a bike well slows the damage but does not reset it: see how to winterize a motorcycle.
WrenchTime logs a tire change like any other job: the date, the odometer it was done at, the cost and the invoice, and in the same step the next change by miles, by date or both, with a local notification on whichever arrives first. Tire pressure is recorded front and rear on a diagram of the bike, in the unit you use. The motorcycle maintenance app guide covers the rest, from chain maintenance to fork service. It is free for 1 vehicle with 2 Care entries a month.
Motorcycle tires last about 3,000 to 15,000 miles, according to Harley-Davidson. Michelin's figures put sport tires at about 1,900 to 5,000 miles and touring tires beyond 18,600 miles. On average the rear wears out at least twice as fast as the front.
Harley-Davidson notes that manufacturers typically recommend replacing a motorcycle tire more than 6 years old, whatever the tread. Michelin sets the outer limit at 10 years from the DOT date and asks for a yearly professional check from the fifth year on.
No. Michelin says a tire 10 years past its DOT manufacture date should be changed regardless of tread depth, and Harley-Davidson draws the line earlier, at 6 years. Rubber deteriorates with age, from ozone, heat and UV, even when the tread looks fine.
Age counts from the manufacture date whether the tire is ridden or stored, so the same 6 to 10 year limits apply. Harley-Davidson advises storing tires dry, out of direct sunlight, between 32 and 77°F, away from motors that make ozone.
Riders go through at least two rear tires for every front, on average, according to Dunlop, which names weight distribution, power delivery and heavy braking as the reasons.
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