Bitubo A0055XXT11 XXT Rear Shock - Aprilia RS457 Tuono 457

The Bitubo A0055XXT11 XXT Rear Shock is a serious performance suspension upgrade for the Aprilia RS 457 and compatible Aprilia Tuono 457 applications. Designed for riders building a sharper, more competitive lightweight race bike, this Bitubo rear shock replaces the limitations of the stock suspension with a tunable, track-focused setup built for grip, stability, and precision.

For anyone preparing an Aprilia RS 457 race bike, the rear shock is one of the most important upgrades you can make. Power gains and lightweight parts matter, but without proper suspension control, the bike cannot fully use its grip under braking, corner entry, mid-corner load, or throttle exit. The Bitubo A0055XXT11 helps give the Aprilia 457 platform the rear-end support and adjustability needed for aggressive canyon riding, track days, club racing, and full competitive race builds.

The XXT shock features adjustable rebound, compression, spring preload, and ride height, allowing riders and race teams to fine-tune chassis balance, rear grip, cornering behavior, and tire wear. This makes it a major advantage over the factory shock, especially for riders pushing harder on slicks, race tires, upgraded fork cartridges, rearsets, lightweight wheels, and other performance modifications.

On the Aprilia Tuono 457, the Bitubo A0055XXT11 is an ideal upgrade for riders turning the lightweight streetfighter into a sharper canyon, track, or race-focused machine. Improved rear shock performance helps increase confidence during hard braking, quick direction changes, and aggressive corner exits, making the bike feel more planted and predictable when ridden at pace.

If you are building a competitive Aprilia RS 457 or Tuono 457, the Bitubo A0055XXT11 should be considered an essential foundation piece. A proper race bike build starts with suspension, and this XXT rear shock gives the Aprilia 457 platform the adjustability, feedback, and control needed to perform at a higher level.

Key Features

• Premium Bitubo XXT rear shock
• Part number: A0055XXT11
• Performance upgrade for Aprilia RS 457
• Excellent option for compatible Aprilia Tuono 457 race and track builds
• Adjustable rebound and compression damping
• Spring preload adjustment
• Ride-height adjustment for chassis tuning
• Helps improve rear grip, stability, and tire feedback
• Supports harder braking, faster corner entry, and stronger corner exit
• Essential upgrade for competitive lightweight race bike builds
• Ideal for track days, canyon riding, club racing, and full race preparation