Aprilia bikes have always been considered a benchmark for excellent chassis architecture. The Dorsoduro 900 chassis provides high rigidity necessary for excellent balance, a tight ride and precision even in extreme track riding, all while providing easy and intuitive handling for daily use.
The Dorsoduro 900 chassis is the result of Aprilia’s technology developed from on-track experience in Supermoto competition where Aprilia boasts no less than seven World Titles. The vivid red steel tubing upper trellis is connected to wide aluminum lateral plates using special high-strength bolts. These elements form an extremely rigid, lightweight frame that encourages use of the power of the new Aprilia V90 engine to maximum advantage.
The low, longitudinal engine placement and lateral placement of the single Sachs shock rear suspension unit creates a precision-handling, nimble bike. This design created space for the exhaust manifolds that have a shape and volume that maximize the performance of the V90 engine. The optimized exhaust manifold layout minimizes impact on the length of the bike and prevents thermally stressing the shock absorber.
The double-sided aluminum alloy swingarm with stiffening truss boasts rigidity values at the top of its class and is sized to withstand the asymmetrical stress created by the lateral positioning of the shock absorber. The Dorsodoro 900 has a new 41 mm Kayaba inverted fork, which is almost 1.1 lbs. lighter than the fork on the original version, adjustable in hydraulic rebound damping and spring preload, with chill cast feet to support the radial brake calipers. The 160 mm (6.2 in.) fork travel lets you smoothly tackle urban and mountain routes. The two steering yoke plates are made of forged aluminum.
The side-mounted rear shock absorber pivots directly to the swingarm, following the cantilever layout and it is adjustable in spring preload and hydraulic rebound. Rear wheel travel is 155 mm (6.1 in.).
The lightweight, three-split spoked cast aluminum alloy wheels are also new, which reduce unsprung front weight by 1.9 lbs. and the rear by 2.8 lbs. This reduces gyroscopic effect resulting in greater agility, improved suspension responsiveness due to reduced unsprung mass and quicker acceleration. The new wheels are shod with 120/70 ZR 17 tires on the front and 180/55 ZR 17 on the rear.
The Dorsoduro 900's state-of-the-art chassis is completed by a sport-derived ABS braking system. The front double discs utilize radial 4-piston calipers and a pair of 320 mm steel floating discs, lightweight and capable of guaranteeing intense, controllable deceleration. The 240mm rear disc is gripped by a single piston caliper. Both the front and rear systems have aviation quality metal braided brake lines, which assure maximum braking force.