Astra Ult DI2 RE38 Basso Bike



A versatile and powerful road bike at the same time. The Astra model has been designed to be used on different occasions. Its features are designed with a very specific objective: to enrich the lifestyle and be accessible to all types of cyclists.

Versatility and globality

Astra maintains its vocation as a road bike, but attention to detail has made it less hectic and more comfortable. Light, but without straining the carbon of the frame (which weighs about 980 g) to the extreme, it uses Basso’s first-class technical solutions.

The 35mm tire opening allows you to fit wider tires and venture beyond asphalt on light gravel roads. Integrated Paradigma technology and Microtech all-terrain handlebars improve safety and comfort while offering interesting aesthetics.



The Astra geometry is the one that most reflects Basso, and is derived from steel models. Improved year after year, it retains the DNA of racing bikes but with a transversal design so that it can adapt to those who are not athletes and do not ride a bike every day. A brand that remains faithful to its past but is capable of perfecting itself from one model to another and increasing its versatility.


  • Frame : Astra carbon monocoque construction 100% 3K Torayca HMCF T700-MR60 monocoque construction
  • Fork : Astra carbon monocoque construction 100% 3K Torayca HMCF T700-MR60 monocoque construction
  • Address:  Microtech Integrated Cables Head Set
  • Transmission:
    • Shimano Ultregra  8170 DI2 groupset 
    • Cranks: Shimano Utegra 
    • Plates: 52-36 / 50-34
    • Chain: Shimano Ultegra 12v
    • Bottom bracket: Shimano Ultegra hollowtech
    • Cassette: Shimano Ultegra 12v (11-34)
    • Front derailleur: Shimano Ultegra Di2 2×12 12v
    • Rear derailleur: Shimano 105 Di2 12v
    • Controls: Shimano Ultegra Dual Control 12 v
  • Brakes
    • Shimano Ultegra Brakes
    • Discs: front: Shimano Ultegra 160 mm; Rear: Shimano Ultegra 160mm
  • Wheels and tires: 
    • Wheels: Microtech  RE38 Disc ,  Carbon  rim construction; 38mm rim depth; 23mm internal rim width; 1560g total weight; Tubeless Ready
    • Basso Standard front axle 123mm x 12mm
    • Rear axle: Basso Standard 166mm x 12mm w/ Integrated tool
    • Tires: Continental Ultra Sport 700 x 28 mm
  • Other components: 
    • Power: Paradigm Stem
    • Handlebar Microtech Integrated Cables Head Set
    • Handlebar tape “The Ribbon” Road Handlebar Tape
    • Saddle: Selle Italia Novus Boost Evo SuperFlow
    • Seatpost: Heart Carbon -15 mm
    • Seatpost Clamp: 3B Gen 2 Seatpost Clamp


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