for the Hayabusa is the massively updated electronics package . It literally has everything . While I ’ ll do my best … there ’ s so much , I ’ m sure I ’ ll miss something . The depth and breadth of the electronics package is mind boggling in its sophistication . Many of you will be familiar with the engine ; a 1340cc . DOHC , six speed and liquid cooled hunk of muscular performance . So , I ’ ll start with a couple of acronyms . There ’ s SIRS , SDMS-A and SRAD . SRAD stands for “ Suzuki Ram Air system ” and refers to the front ducts that allow air to be forced in to the airbox at speed , thereby increasing intake pressure and high speed / rpm power . SIRS stands for “ Suzuki Intelligent Ride System ” and is managed by a new six-axis Bosch IMU ( Inertial Measurement Unit ) and 32bit ECM ( Engine Control Module ). This SIRS is mainly about ABS and traction control ; monitoring traction , lean angles , front / rear wheel speed and horsepower inputs to minimise surprise traction losses for safety or allow the correct amount of wheel slip for fast riding . It also incorporates 10 levels of TC for all power modes , 10 anti-wheelie settings , three launch and engine braking settings , and a braking combination for downhill chassis balance that reduces rear wheel lift . SDMS-A stands for “ Suzuki Drivemode Selector – Alpha ”. SDMS-A is about three preset power modes ( A , B , C ) and three user-definable modes . A mode has the most power with B and C offering progressively less power . C mode on TC level 10
( the most intrusive ) for example feels like it cuts total power in half . A mode on TC level 1 offers full power and with the Anti Lift ( wheelie ) on 1 allows a low wheelie and some wheel slip . I rode mostly with these settings on the road and felt safe and controlled while being able to enjoy the full fat acceleration . I never felt any wheelspin except when I hit light gravel marbles … which induced a strong TC response that killed the wheel spin instantly . But , when set on TC 10 , hard acceleration felt compromised , so it is clearly working in the background . Traction still felt excellent even with the TC off and full power to the right wrist was certainly exciting . Hill Hold Control is also part of the repertoire . Engaged by the front brake it performs the same action as hill-start assist in a car , by holding the brake on and stopping the bike rolling backwards as you take off . I guess it ’ s handy , but I hold the front brake on , on hills anyway , so don ’ t really notice its helpfulness . Under hard braking the indicators flash as emergency warning lights , which I think is a sensible thing and happily it ’ s becoming more prevalent on modern machines . Safety first .
POWERFUL THRUST Even with TC off , the power delivery is beyond linear and silky smooth . Forward thrust is exceptionally progressive and manageable . There are no surprises – period . However , above 6000rpm all is happening very fast , and above 8000rpm , until redline around
34 KIWI RIDER