CSBK Adds Pro Twins Class For 2023 Season!

The Aprilia RS660 is the "baseline" model for the new Pro Twins series in CSBK. Photo: Piaggio Group

It’s something that many race fans have wanted for years, and Canadian Superbike officials are finally making it happen. For 2023, CSBK will add a Pro Twins class, allowing riders to race their middleweight machines that have been long outside the series.

That means we will soon see racebikes based on the Yamaha R7, along with the Suzuki SV650, the Kawasaki Ninja 650, and probably the new Honda 750 twin at some point. Maybe KTM’s 790 Duke, and the new Suzuki GSX-8S, if it’s on the Canadian market in time? Who knows—some of this will come down to availability of race fairings and other parts, and of course, general homologation rules. On its part, CSBK says the Aprilia RS660 is the benchmark for the class.

This is good news, as the middleweight class is where we’ve seen the most growth in streetbikes in recent years. Like the jumbled rulebook in the Lightweight Amateur Sportbike class, which sees different technical regulations for different machines in an attempt to level the playing field between 300s and 500s, we will also see different rules for different bikes in the Pro Twins series. Considering the differences between the machines eligible, this makes sense, and this process works in the MotoAmerica series, where a similar class has run for years.

CSBK says the Pro Twins class will run on-track at the same time as Pro Superbike. No doubt this will create some excitement, and we expect some epic battles between the pro 600 racers and their parallel twin counterparts, even if they aren’t in the same class. And will Pro Twins eventually replace Pro Sport Bike as the premier middleweight series? Don’t be surprised if that happens in the next five or 10 years, or even earlier if Kawasaki cancels its ZX-6—that’s the only modern 600 currently available in Canada. Current-production Suzuki GSXR-600s are available as 2023 models, but they haven’t been updated for years; the Honda CBR600 and Yamaha R6 are history at this point. So yeah—the Pro Twins class is the future.

See CSBK’s official release below:

Press release

Pro Twins Class joins Bridgestone CSBK Nationals for 2023

Starting in 2023, the Canadian National Superbike Championship Series, Bridgestone CSBK, will add a new category for twin cylinder motorcycles. The new racing division, called Pro Twins, is described as a development category, with the intention of eventually offering middleweight Twins competition for Professional and Amateur level competitors in Canada.

The initial version, Pro Twins, will be run in conjunction with Liqui Moly Pro Sport Bike middleweight category races during the five event 2023 CSBK National campaign. A similar “SuperTwins” program was recently announced for the 2023 Australian Superbike Championship Series.

CSBK’s stated goal for Pro Twins is to launch with the aim of developing a cost-effective mid-level racing platform. Twins will eventually serve as a steppingstone between the Lightweight classes, launched in 2018, and the well-established larger divisions, the Sport Bike (middleweight) and Superbike (open class) categories.

In 2023, The Pro Twins category will run in conjunction with Pro Sport Bike but start separately with their own “waved” start for the Pro Twins racers, based on their performance in Qualifying. Scoring will be separate for the two classes, and Pro twins will have its own victory lap, podium, and points standings.

As with other divisions in Bridgestone CSBK, Pro Twin’s rules enforcement will centre on the Dynojet Dyno, as operated at National race events by Brooklin Cycle Racing. The maximum permissible horsepower will be 90 as registered immediately post session or post race on the rear wheel spinning Dynojet Dyno.

Four manufacturers have agreed to participate in the inaugural season of Pro Twins, and other possible machinery will be considered for competition during the inaugural 2023 Twins season as the class is refined and developed.

The “index” bike for the category is Aprilia’s vertical twin RS 660, and the Italian brand’s offering will be heavily restricted to near stock form, give or take some basic electronic tuning.

Yamaha’s R7 is another vertical twin design, and the “R model” and it’s 689cc family relatives including the MT-07 and XSR700, have competed successfully against the Aprilia in several National Championships. As with the Aprilia, the Yamaha will not be permitted much in the way of chassis mods, but engine allowances (head mods and cams) will be permitted.

The Kawasaki Ninja 650 is a popular existing design, with success in various racing applications, and latitude for chassis and engine improvements will be greater for this established offering.

Suzuki will initially compete with the legendary SV 650 v-twin, again with significant build options available, and Suzuki Canada aim to the have the brand new 776cc vertical twin GSX-8s on track by the end of the inaugural Pro Twins CSBK tour.

On track, machines in Pro Twins will utilize white numbers on black backgrounds, allowing these machines to be differentiated from the Pro Sport Bike categories black number on white backgrounds.

Pro Twins category competitors will be eligible to participate in the upcoming Bridgestone sponsored two-day CSBK Test at JenningsGP in North Florida, March 14 and 15. The 2023 Bridgestone CSBK National Series opens on Victoria Day weekend at Shannonville Motorsport Park, May 19-21.


    • They’re already there – the class is called Pro Sportbike. They will be on the track at the same time, just running for separate points.

  1. “CSBK says the Pro Twins class will run on-track at the same time as Pro Superbike.”
    Uh no, it will have it’s own separate wave start behind Pro Sportbike.
    Not a lot of time to build machines, and some details to be ironed out (HP and weight limits), let’s hope builders can make it in time.

    • So after the dust settled, there were what FOUR entries in the class at best this season ?
      I hope there’s a better showing for 2024 or this deal is D.O.A,

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