25mm SmartCarbs are designed to replace conventional spigot mount top-pull carburetors in 2-stroke applications and will fit most intake manifolds and conventional air boxes that use Keihin PWK series 25 and 28mm carburetors.
Questions about sizing, fitment, or compatibility? Contact Us!
- Ride Faster (+10% Horsepower)
- Ride Farther (+30% Fuel Economy)
- Enjoy crisp, clean, linear throttle response bottom to top!
Tuning/Ease of Use
- Easy External Adjustability (no tools required)
- Ambient Air Density Compensation (no tuning required for elevation, temperature, or humidity)
- Accepts all modern stock throttle cables
- Single Circuit Design (no jets, no accelerator pump, no power-jet)
- Set it and forget it!
- No fuel spillage (internally vented, sealed system)
- Reduced emissions output (30-50% reduction)
- TPS plug-and-play (optional add-on or as a kit)
- Premium, durable construction
- Designed and manufactured in the USA
NOTE: A 50.8mm (2 Inch) Ring Adapter must be installed for proper fitment on the following applications:
- Mini Motocross Bikes
- KTM Freerides
- Trials Bikes
- Generally any application using a 25 or 28mm PWK carburetor stock