The OE tire sizes for the Kawasaki VULCAN S (2015–present) are 120/70R18 front / 160/60R17 rear. Below are tires in these sizes, compared across brands. OE rim widths are F3.50 / R4.50 (from official specs; used for the rim-width check). OE sizes can differ by model year and market — the sidewall of your own bike is the sure reference. This is a Japanese-market lineup; the sizes themselves are international.
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Tires that cover front and rear (5 models)
Front + rear set: 5 models can cover both ends (matching sizes in bold, based on F=120/70R18 / R=160/60R17). Shop links search on the model name alone.
Dunlop’s line is “performance that lasts — the new standard premium touring radial.” Mostly aimed at large tourers, but the 120/60ZR17 and 160/60ZR17 make it a touring-leaning option for the CB400SF.
Sizes: F 120/60ZR17, 120/70ZR17, 130/70ZR17, 110/80R18, 120/70ZR18 / R 160/60ZR17, 160/70ZR17, 170/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 190/60ZR17, 140/70R18, 150/70ZR18, 170/60ZR18
Where to buy
Two generations before the Roadsmart III. The 18-inch tourer sizes are what remain. The 120/70ZR17 and 160/60ZR17 are the fitment for the Kawasaki ER-6F / ER-6N (’12 on).
Sizes: F 120/70ZR17, 120/70R18 / R 160/60ZR17, 200/50R18
Where to buy
Bridgestone’s line is “long life that makes itself heard.” A touring radial. One of very few current road tires available in 110/80R19, which covers both ends of the CL250, and it also has 120/60ZR17 (CB400SF) and 150/70ZR17 (GB350S rear).
Sizes: F 120/60ZR17, 120/70ZR17, 120/70ZR18, 110/80R19, 120/70R19, 110/80ZR18, 120/70ZR19 / R 150/70ZR17, 160/60ZR17, 170/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 160/70ZR17, 160/60ZR18
Where to buy
The mainstay sport tourer, sold on its wet performance. It reaches into 18 and 19 inch, which is a wide net. The catalogue lists it in both the Sport Touring and Trail sections.
Sizes: F 110/70ZR17, 120/60ZR17, 120/70ZR17, 120/70ZR18, 110/80ZR19, 120/70ZR19 / R 140/70ZR17, 150/60ZR17, 150/70ZR17, 160/60ZR17, 170/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17
Where to buy
A touring/cruiser radial on Dunlop’s FS-JLB construction. The 120/70R18 and 160/60R17 are the fitment for the Kawasaki Vulcan S (’15 on).
Sizes: F 120/70ZR17, 120/70R18 / R 160/60R17, 180/55ZR17
Where to buy
Front 120/70R18 options (10 total, 5 of them listed in the set section above)
Size 120/70-18: 10 exact, 0 in the same group. Shop links carry each tire’s own matching size.
A standard bias tire in 17 and 18 inch. Dunlop marks the 140/80-17 and 150/70-18 as while-stocks-last.
Sizes: F 110/80-17, 110/70-17, 120/70-17, 110/80-18, 120/70-18 / R 140/80-17, 140/70-17, 150/70-17, 160/70-17, 150/70-18
Where to buy
Bridgestone’s line is “bringing US V-twins into a comfortable cruising space.” Aimed at cruisers, and Bridgestone states the rear’s wear life is substantially up on the previous product. It carries sizes other road tires do not — 120/70ZR18, 130/60B19, 130/90B16 among them.
Sizes: F 130/90B16, 100/80-17, 130/80B17, 140/75R17, 120/70ZR18, 130/70B18, 100/90B19, 120/70B19, 120/70ZR19, 130/60B19, 80/90-21, 130/60B21 / R 140/75R15, 130/90B16, 140/90B16, 150/80B16, 180/65B16, 180/70B16, 150/60ZR17, 160/70B17, 180/60B17, 200/55R17, 180/55B18, 240/40R18
Where to buy
Front only, and one size: 120/70-18. Bridgestone files it as an “on-road high-performance type.” Its partner, the G602, has no size table on its product page and is most likely discontinued, so we do not list it. Bridgestone notes that “this is a rare size and delivery may take time.”
Sizes: F 120/70-18
Where to buy
Bridgestone files it as an “on-road high-performance type” radial, and both ends are OE fitments. ★ One of very few tires with a 200/55R16 rear, which fits the Gold Wing Tour ★ It also carries ultra-wide sizes such as 200/60R16, 240/55R16 and 210/40R18.
Sizes: F 150/80R16, 130/80R17, 120/70ZR18, 130/70R18 / R 200/55R16, 200/60R16, 240/55R16, 200/50R17, 200/50ZR17, 210/40R18
Where to buy
A radial from the Harley OE Scorcher family. Custom sizes run deep here — 140/75R17, 240/40R18, 130/60B21 among them.
Sizes: F 100/80-17, 140/75R17, 120/70ZR18, 160/60R18, 120/70ZR19, 130/60B21 / R 140/75R15, 150/60ZR17, 150/70ZR17, 180/55ZR17, 200/55R17, 240/40R18
Where to buy
Rear 160/60R17 options (28 total, 5 of them listed in the set section above)
Size 160/60-17: 28 exact, 0 in the same group. Shop links carry each tire’s own matching size.
Pirelli calls it “the latest of the fastest track tread tires Pirelli makes, and hugely backed on the circuit.” The usage icon is racetrackOnly. Several compounds exist (SC1, SC2 and so on), but Pirelli does not split them by size on the site, so we keep it as one entry.
Sizes: F 110/70R17, 120/70R17 / R 120/70R17, 140/70R17, 150/60R17, 160/60R17, 180/60R17, 190/55R17, 200/55R17, 200/60R17
Where to buy
Sold alongside the Power Cup 2. This is the one that carries the middleweight sizes — 110/70ZR17, 140/70ZR17 and so on.
Sizes: F 110/70ZR17, 120/70ZR17 / R 140/70ZR17, 150/60ZR17, 160/60ZR17
Where to buy
Michelin’s line is “real confidence on public roads and strong potential on track.” Track-leaning, but without giving up life the way the Cup family does.
Sizes: F 120/70ZR17 / R 160/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 200/55ZR17
Where to buy
Dunlop calls it “a premium sport radial for riders who want skill rather than speed.” Many OE fitments — CBR600RR, CB1000 Hornet, GSX-8S, Z900, Katana among them.
Sizes: F 120/70ZR17 / R 160/60ZR17, 180/55ZR17, 190/50ZR17
Where to buy
A sport radial from the OE-fitment side of the range. The 120/60ZR17 and 160/60ZR17 are the fitment for the Honda CB400SF (’99 on).
Sizes: F 120/60ZR17, 120/70ZR17 / R 160/60ZR17, 180/55ZR17
Where to buy
Pirelli’s Japanese line for it is “banking by pure instinct.” A sport radial. It has 120/60ZR17, which makes it one of the few current sport tires that can do both ends of the CB400SF (NC42), and the small sizes (110/70R17 and so on) are there too.
Sizes: F 110/70R17, 110/70ZR17, 120/60ZR17, 120/70ZR17 / R 140/70R17, 150/60R17, 150/60ZR17, 160/60ZR17, 180/55ZR17, 180/60ZR17, 190/50ZR17, 190/55ZR17, 200/55ZR17, 200/60ZR17, 240/45ZR17
Where to buy
Pirelli calls it “the third generation of the Diablo Rosso family, a road sport tire for dry and wet alike.” The Rosso IV’s predecessor but still sold alongside it, and it keeps small sizes the IV does not — 130/70ZR16, 100/80R17 among them.
Sizes: F 130/70ZR16, 100/80R17, 110/70R17, 110/70ZR17, 120/60ZR17, 120/70ZR17 / R 140/70R17, 150/60R17, 150/60ZR17, 160/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 240/45ZR17
Where to buy
The Rosso III’s predecessor. Pirelli’s stated aim was “longer tire life on the road together with grip at full lean,” with a dual-compound rear. Only 17-inch large-displacement sizes remain.
Sizes: F 120/70ZR17 / R 160/60ZR17, 170/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 200/50ZR17
Where to buy
Bridgestone’s line is “the joy of turning, for every rider.” A hypersport radial. The small sizes — 110/70R17, 140/70R17, 150/60R17 — take it down to the CB250R, Z400, Gixxer 250 and MT-03 class.
Sizes: F 110/70R17, 120/70ZR17 / R 140/70R17, 150/60R17, 160/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 200/55ZR17
Where to buy
Bridgestone calls it “a true premium sport radial that draws more out of the machine and chases the joy of control.” Successor to the S20 EVO, with a rear compound developed using ULTIMAT EYE for both traction and wear life. Two generations behind the S22 and S23, but it keeps sizes the current generation dropped, such as 130/70ZR16.
Sizes: F 130/70ZR16, 120/60ZR17, 120/70ZR17 / R 160/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17
Where to buy
Michelin’s line is “a new standard for the sport tire, riding exactly as you intend.” Successor to the Power 5, and Michelin’s mainstay road sport tire.
Sizes: F 110/70ZR17, 120/70ZR17 / R 140/70ZR17, 150/60ZR17, 160/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 200/55ZR17, 240/45ZR17
Where to buy
Michelin describes it as “specialised for performance on the street.” The Power 6’s predecessor, still in the 2026 catalogue alongside it.
Sizes: F 120/70ZR17 / R 160/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17, 200/55ZR17
Where to buy
Michelin’s line is “usable around town while still answering sport riding.” A long seller. The 120/60ZR17 covers the front of the CB400SF (NC42).
Sizes: F 110/70ZR17, 120/60ZR17, 120/70ZR17 / R 150/60ZR17, 160/60ZR17, 170/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17
Where to buy
Dunlop describes an “all-round touring radial covering town riding through to winding roads.” A default for 250–400 radial-shod bikes, and the 120/60ZR17 makes it fit the CB400SF. Dunlop notes explicitly that the rear must not be fitted to rims outside the approved width.
Sizes: F 110/70R17, 120/60R17, 130/70ZR16, 110/70ZR17, 120/60ZR17, 120/70ZR17, 110/80ZR18 / R 140/70R17, 150/60R17, 160/60R17, 140/60R18, 150/60R18, 150/70ZR17, 160/60ZR17, 170/60ZR17, 180/55ZR17, 190/50ZR17
Where to buy
The touring radial that preceded the Roadsmart IV. Dunlop’s line is “a touring radial that answers the grand tourer’s urge to keep going.” Few sizes remain, as the main ones have moved to the current generation. The 160/60ZR17 is the fitment for the Suzuki SV650 (’18 on).
Sizes: F 120/70ZR17 / R 160/60ZR17, 180/55ZR17
Where to buy
Dunlop calls it “an entry-level touring model based on the Roadsmart III, with a single-compound rear.” Positioned below the plain III on price.
Sizes: F 120/60ZR17, 120/70ZR17 / R 160/60ZR17, 180/55ZR17, 190/50ZR17
Where to buy
Bridgestone aims it at “on-road-centred adventure touring.” Strong on 19-inch fronts — 110/80R19, 120/70R19, 100/90-19 — so it fits the front of the CL250, CL500 and 400X. Rears go up to 150/70R17 (CL family) and 160/60ZR17 (400X).
Sizes: F 120/70R15, 120/70ZR17, 110/80R18, 100/90-19, 110/80R19, 120/70R19, 120/70ZR19, 90/90-21, 90/90V21 / R 130/80R17, 140/80R17, 150/70R17, 160/60ZR17, 170/60R17, 170/60ZR17, 180/55ZR17, 190/55R17, 190/55ZR17, 150/70R18, 150/70ZR18
Where to buy
Bridgestone files it as “mainly ON.” An OE adventure fitment, and only one pairing exists: 120/70ZR17 front, 160/60ZR17 rear. It is not chasing off-road ability, so we list it on the Road side (same call we made for the A41).
Sizes: F 120/70ZR17 / R 160/60ZR17
Where to buy
Bridgestone’s line is “confidence from a large gain in wet performance.” A sport touring radial built around shorter wet braking distances and more cornering grip. The generation before the T32 and T33.
Sizes: F 120/60ZR17, 120/70ZR17 / R 160/60ZR17, 180/55ZR17, 190/50ZR17
Where to buy
Bridgestone’s pitch is a casual radial — “go anywhere as easily as putting on sneakers.” Basic performance at a price. ★ Only one size is still listed, the 160/60ZR17 rear ★ The fronts live on the TS100H side.
Sizes: R 160/60ZR17
Where to buy
The Road 6’s predecessor, still in the 2026 catalogue alongside it.
Sizes: F 120/60ZR17, 120/70ZR17 / R 150/70ZR17, 160/60ZR17, 180/55ZR17, 190/50ZR17, 190/55ZR17
Where to buy
Dunlop describes “the traditional TT100GP pattern, optimised with current technology for the latest neo-classics running radials.” A different tire from the bias TT100GP, aimed at radial-shod machines such as the Z900RS and the XSR family.
Sizes: F 120/70ZR17, 110/80R18 / R 150/70ZR17, 160/60ZR17, 180/55ZR17, 140/70R18
Where to buy
From the Harley OE Scorcher family. One pairing only: 120/70R17 and 160/60R17.
Sizes: F 120/70R17 / R 160/60R17
Where to buy
How to read this
- The 1–5 ratings are our own estimates. Not manufacturer figures, not measurements.
- Within one model, character and street legality both change with the size and the spec. Confirm with the manufacturer or a dealer before you buy.
- Shop links go to search results rather than product pages. Other sizes and older models will be mixed in.
- “Narrower” means one or two steps below the OE size. The “rim width OK” badge means the tire maker's published rim widths line up with the OE rim width; no badge means unconfirmed.
- Competition tires may not be used on public roads.