With the opening event of the 2021 CSBK tour just days away at Calabogie Motorsports Park, this seems to be a good time to check out the post race Technical Inspection data from the most recent round of the National series, way back in August of last year at Canadian Tire Motorsport Park east of Oshawa, ON.
Fan attention naturally tends to focus on the Pro Superbike feature class, where the 200-horsepower limit has been a major tuning factor since the arrival of the first gen BMW S1000RR back in 2010. After Qualifying for the two Superbike Feature races at “old Mosport,” the top placed competitors went to the official series Brooklin Cycle Racing Dynojet Dyno to spin the drum that measure rear wheel output.
Jordan Szoke set the quickest time of the Pole session, and after that effort his machine measured 189.32 horsepower for the Fast Company built Kawasaki ZX-10R Ninja. The second-best lap time belonged to the 2020 Royal Distributing BMW S1000RR of Michael Leon, and his BeeMm put out 181.99 rear wheel horsepower.
Third quickest was rapid rookie Samuel Guerin on his early-gen BMW, and his in-line four-cylinder registered 184.95 horsepower. Fourth best was Kenny Riedmann in his first day riding Trevor Daley’s One Speed Suzuki GSX-R1000, and the quick Gixxer yielded 186.32 on Saturday afternoon’s mandatory trip to the Dynojet Dyno.
Following Sunday’s opening Pro Superbike Feature event, the top bikes were weighted at Keene Truck Tech Inspection by the CSBK Tech staff. The bikes are measured, as stated in the Rulebook, as they left the track, with whatever fuel is remaining after the race. They also need to carry enough fuel to run on the dyno if requested – no fluids may be added.
Victor Szoke’s Kawasaki passed the scales at 393 pounds, and runner-up Guerin’s BMW weighted in at a hefty 412 pounds, given the class minimum for 1000cc machines is 360 pounds.
Riedmann lead most of the opener in his Suzuki debut, and tipped the scales at 391 pounds in Tech. Leon’s fourth place 397, BMW measured out at 397. Elliot Vieira made up for a poor start on the slick surface to charge all the way up to net an impressive fifth aboard his Sport Bike category Snow City Cycle Yamaha YZF-R6, and his machine registered 360 pounds, safely under the 600cc weight limit of 350.
It is worth comparing the Pro Superbike race Tech Inspection results to those obtained following the opening, wet, Motorcyclecourse.com Amateur Superbike National. Winner Jordan Royds Yamaha YZF-R1 moved the scales to 392 pounds, with the runner-up Suzuki GSX-R1000 of Alex Cleary measuring 409. Third placed in Amateur Superbike Sarah-Michelle Cotton’s Sport Bike (middleweight class) Kawasaki ZX-6R Ninja weighted in at 375 pounds.
Much of the technical focus in CSBK is placed in Amateur Lightweight Sport Bike, where the close competition places a huge premium on potential performance advantages. Due to concerns about rules in a class that is focused on rider development, the LTWT category racers are used to getting checked after almost every one of their on-track sessions.
Matt Simpson was fastest in Qualifying aboard a Honda CBR500R twin, a bike suited to the steep uphill back straight at C.T.M.P. Simpson’s CBR put out 40.16 horsepower, safely under the Honda’s limit of 45 (now slightly increased.) Yamaha YZF-R3 mounted Richard Lee was second quickest in the Ltwt “Q” session, and his twin put out 39.42 horsepower, well below the permitted maximum of 44. The best of the strong Kawasaki Ninja 400 contingent was third-on-the-grid Mike Maguire, and that twin registered 41.96 horsepower.
This season, the only category to get revised post-race inspection guideline is Amateur Lightweight Sport Bike, and those updates are minor in nature. In dry conditions at Calabogie this weekend, many of Canada’s top road racers will be looking to make the most of any margin in performance they can get – no matter if they are restricted to 45 horsepower or 200!