BILLETRON™ PRO-SERIES 38 Carburetor – 2004+ Honda CR125R

Modern power for a legendary 2-stroke.
Give your 2004+ Honda CR125R the throttle response and torque it deserves with the BILLETRON™ PRO-SERIES 38. This next-gen carburetor redefines two-stroke performance, eliminating jetting hassles and unlocking massive low-end torque, midrange pull, and top-end speed. With cutting-edge features like the XCELERATOR™ metering rod, Torque Jet, and vacuum-activated fuel circuits, the PRO-SERIES delivers EFI-like response — with the simplicity and tunability of a carb.

If you want instant throttle, more power across the RPM range, and a no-compromise setup, this is the most advanced carb on the market for your CR125R.

✅ Key Features:

🌀 Torque Jet Fuel System

• Perfectly synchronizes fuel delivery with airflow

• Works in harmony with metering rod & power jet to eliminate hesitation

• Dramatically improves throttle response and bottom-end power

🔩 XCELERATOR™ Metering Rod (Patent Pending)

• Provides brief enrichment during sudden throttle to reduce bog

• Adds up to 20% more torque off idle

• Increases top-end power without sacrificing rideability

💨 Velocity-Optimized Bore Design

• Designed specifically for 125cc–299cc 2-stroke motors

• Maximizes airflow while maintaining perfect atomization

• Engineered for 2004+ Honda CR125R geometry and airflow needs

⚡ Ready-Active Fuel Circuits

• Fuel circuits stay primed for consistent power at all throttle positions

• Eliminates dead spots and transition lag

• Excellent for MX, woods, or freeride terrain

🔒 Enhanced Needle & Seat

• Reduces fuel leakage

• Improves fuel control and atomization

• Minimizes maintenance and improves long-term consistency

🔧 Fitment:

• Fits 2004+ Honda CR125R

• Also fits other 125cc–299cc two-stroke applications with correct intake spacing

• No jetting required — tuning via external adjustments

• Ideal for motocross, woods, and race builds

📌 Contact Lectron for spec compatibility if adapting to a different model.

🛡️ Warranty:

Covered under Lectron’s limited manufacturer warranty for defects in materials or workmanship.
Installed carbs are not returnable unless approved through warranty.