Malossi Carburetor Kit PHBG 21 BD – compact Dellorto carburetor for noticeably more acceleration

The Malossi carburetor kits are the perfect beginner kits if you want to switch to a larger carburetor system. Thanks to the compact design of the Dellorto PHBG, the kit can often be run with the original airbox – in combination with a slightly shortened original intake manifold rubber, this often works without problems.

The combination of easy tuning and solid Dellorto technology makes this carburetor a true all-rounder: whether for a heavily tuned engine or a tourer. Especially on popular 50cc setups (e.g. Aprilia SR 50, Piaggio Zip 50 or Yamaha Aerox 50 – depending on the version), a cleanly tuned 21mm carburetor is a strong basis for optimized performance.

Why a larger carburetor?

• Significantly better cylinder filling even for engines with slight performance increases
• Consequently a powerful increase in torque already from lower RPMs
• Further substantial performance increase possible through modification of the air filter box
• Dellorto standard 5 mm main jets

Details & technical notes

• Kit: Malossi Carburetor Kit
• Carburetor: Dellorto PHBG 21 BD
• Compact design – often compatible with the original airbox (with potentially slightly shortened original intake manifold rubber)
• Pre-tuning of the main and idle jets is present
• Important: A fine-tuning is recommended in any case, as every engine runs differently depending on the components
• OEM No. (for comparison purposes): 1610997

Compatibility / Vehicles

Fits many vehicles. Examples from the list: Aprilia SR 50, Piaggio Zip 2 50, Vespa LX 50, Yamaha Aerox 50 – but also many other models from the listed manufacturers/types.

Malossi / Dellorto – proven basis for the setup

With Malossi as the tuning specialist and the robust Dellorto basis, you get a kit that can be cleanly tuned and provides you with a reliable foundation for a high-torque, well-rideable engine.