Bridgestone announced the Battlax Adventure A42 on 22 October 2026, replacing the Adventure A41 that’s been the brand’s on-road-biased ADV tyre since 2017. Bridgestone claims a 14% reduction in slip ratio under straight-line acceleration versus the outgoing A41, up to 18% longer front-tyre wear life and 25% longer rear-tyre wear life, and 15% less noise. It arrives globally from 1 January 2027, with Japan following a month later.

Nine years is a long run for a tyre to stay current, and I’ve personally gone through at least four sets of the old A41 on a bike I ride maybe six weekends a year — which tells you less about the tyre’s longevity and more about how often “this weekend, definitely” turns into “next weekend, definitely.”

What’s actually new

The headline number is the 14% cut in acceleration slip, which Bridgestone frames around wet-road stability rather than outright dry grip — sensible, given the A42 is explicitly built for riders who spend most of their adventure-bike mileage on tarmac rather than gravel. The wear-life split is worth noting too: +18% up front but +25% out back, since the rear is almost always the tyre that actually limits a set’s life on a touring bike doing motorway miles.

Spec Battlax Adventure A42 Battlax Adventure A41 (outgoing)
Launch year 2027 2017
Acceleration slip ratio Baseline −14% Baseline
Front wear life +18% Baseline
Rear wear life +25% Baseline
Noise −15% Baseline
Sizes at launch 6 (90/90V21, 110/80R19, 120/70R19 front; 150/70R17, 150/70ZR18, 170/60R17 rear) —

A second wave of 9 further sizes — including common 17-inch and 19-inch fitments like 120/70ZR17, 130/80R17 and 150/70R18 — follows in 2028, which tells you Bridgestone is rolling this out size-by-size rather than replacing the whole A41 range on day one. If your bike’s size isn’t in the first six, you’ll be waiting.

Why this segment keeps growing

Bridgestone’s own framing cites European demand for adventure-touring tyres up 45% over the past decade — which lines up with what’s actually happened to the segment: bikes like the Yamaha Ténéré 700 and Honda Transalp turned “adventure bike” from a niche into one of the default shapes a new motorcycle takes, and all of them need tyres that can do a motorway stretch, a fuel stop on gravel, and a wet Tuesday commute without drama. Bridgestone pitching the A42 explicitly as “on-road oriented” — rather than a 50/50 or off-road-biased tyre — is Bridgestone chasing exactly that commuting-and-touring majority, not the minority actually doing green lanes.

No pricing has been announced yet; expect retail numbers closer to the January 2027 launch.

FAQ

When does the Bridgestone Battlax Adventure A42 go on sale?

Globally from 1 January 2027, with Japan following from 1 February 2027. A second wave of sizes arrives in 2028.

What does the A42 improve over the A41?

Bridgestone claims a 14% reduction in acceleration slip ratio, up to 18% longer front and 25% longer rear tyre wear life, and 15% less noise, versus the A41 launched in 2017.

What sizes are available at launch?

Six sizes: 90/90V21, 110/80R19 and 120/70R19 up front, and 150/70R17, 150/70ZR18 and 170/60R17 for the rear. Nine more sizes, including common 17-inch and 19-inch fitments, follow in 2028.

How much does the Bridgestone Battlax Adventure A42 cost?

Bridgestone hasn’t announced pricing yet.

If you’re currently running the outgoing A41 on anything like a KTM 790 Adventure or Ténéré 700, the A42 is the direct replacement to watch for come your next set — and for anyone shopping one of the A2-legal adventure bikes that make up a chunk of that growing European segment, it’s one more reason the category keeps getting easier to live with.

Official product page: https://www.bridgestone.com/corporate/news/2026102201.html

Reporting via: tyrepress.com, superbike-news.co.uk, dirtbikemagazine.com