SmartCarb For Beta 125 RR

Name: SmartCarb For Beta 125 RR
SKU: SC2-36-BET125
Availability: InStock

$674.10 – $764.10

Build Your Own Beta Better!

This 36mm SC2 model SmartCarb replaces the stock 36mm Keihin PWK in Beta 125 RR, 125 RR Race Edition, and new 125 RR X-Pro dirt bikes, offering crisp, clean performance, excellent fuel efficiency, and incredible ease of use.

Every SmartCarb ships pre-adjusted specifically for the bike for which it is ordered. Please provide information in the forms below about any engine/exhaust modifications, how you ride (riding style), and what fuel selection and oil premix ratio you use.

Questions about compatibility, sizing, or fitment? Contact Us!

Products shipping internationally may be subject to import duties/taxes.

Color Options

Clear

Confirm Year *

Engine/Exhaust Modifications *

Riding style(s) *

Fuel Selection/Oil Ratio (if applicable) *

SKU: SC2-36-BET125 Categories: Offroad 2-Strokes, Beta 2-Strokes

Description

This SC2 SmartCarb replaces the stock Beta 125 RR carburetor. It is a precision metering instrument that provides extremely fine fuel atomization, precise mixture control, and air density compensation in a single circuit, jet-less fuel system.

CNC billet aluminum construction
Patented single fuel circuit design
Extremely fine fuel atomization
Optimal air/fuel ratio control
Designed & manufactured in the USA

Learn more about How It Works

See Dirt Bike Magazine’s SmartCarb Review

See Cycle News’ SmartCarb Review

Performance Guarantees

The SC2’s patented variable venturi shape focuses airflow directly at the metering rod, maximizing fuel atomization and combustion efficiency at all throttle positions.

8-10% increase in horsepower & torque
25-30% greater average fuel economy
30-50% reduction in emissions outputs (2X EPA certified)
Crisp, clean throttle response & substantial top end overrev
No compromises

Remarkable Simplicity

The SC2 SmartCarb is externally adjustable track or trail-side in seconds. Patented, internal float bowl venting provides unmatched air density compensation.

Tool-free, external adjustability – in seconds!
Automatic air density compensation (elevation, temperature, even boost)
NO jets & NO more jetting
Integrated venting system – no dangling vent lines
Zero fuel spillage

Fitment Information

This SmartCarb accepts the stock throttle cable and equips the following 125cc Beta 2-stroke dirt bikes:

2025 125RR X-Pro
2018-2024 125RR
2019-2025 125RR Race Edition

NOTE: Oil injected Beta motorcycles require TPS (throttle position sensor) input. Premix Beta motorcycles do not. All model years of the Beta 125RR use premixed fuel (no factory oil injection option) but recent model year Beta 125RR bikes are equipped with TPS on the stock Keihin carburetor from the factory. They do not require a TPS connection unless an oil injection kit has been installed after purchase. The wire harness TPS connector can be left disconnected and secured up underneath the tank/frame. A check light may show on the display unit when TPS is disconnected. It can be ignored or disabled per Page 3 of Beta’s Oil Injection Delete Kit Instructions (de-pinning the pink wire with purple stripe). Your local Beta dealer can provide further information on disabling the check light.

Contact Us if you have added oil injection to your Beta 125RR.

Removal of the reed spacer is advised for best fitment in Betas using larger than stock diameter rear shock springs. Shorter M6x25 Flange Bolts (4x 8mm) are included with your SmartCarb SC2 purchase.

View the Quick Start Guide (included with your purchase).

SmartCarb For Beta 125 RR

Build Your Own Beta Better!

Description

Performance Guarantees

Remarkable Simplicity

Fitment Information

Reviews

STAY TUNED

Address

Phone

Support

Hours

Follow Us

General