The heart of the Suzuki Gladius is a 645cc liquid cooled V-twin engine. This reincarnation of the SV's 650cc engine has been updated and retuned for performance. The cylinders have received Suzuki Composite Electrochemical Material (SCEM), derived from Suzuki's racing teams. SCEM dissipates heat better, and reduces friction. There is a five percent increase in crankshaft inertia, which improves low- to mid-range output. A high-lift cam was installed for increased torque. For the first time on a street bike, Suzuki installed Idle Speed Control (ISC), which stabilizes the bike's idle rev, improves starts in cold weather, and eliminates excess wiring. A compact exhaust provides a boost in low- and mid-range torque. Suzuki's updates result in the Gladius motor producing 70 horsepower at 8,500 rpm, and 45 ft. lbs of torque at 7,800 rpm. With the tuning for low-end torque 35+ ft. lbs of torque are available at 3,500 rpm. That’s substantial power available for a bike labeled as being ""entry level."" A six-speed constant mesh transmission is extremely smooth to shift, enhancing the bike’s status as ""user-friendly.""