Overview

2026 Beta RX250

Motorcycle

250 RX

250 RX: Another all-new model for 2026 is the smaller brother to the 350, the long-awaited 250 RX! Like the 350 version, this 2-stroke powered motocross model will appeal to all of those wanting a high-revving, lightweight 250 that can tear up berms with a distinctive sound that can only be heard from a Beta. The 250 RX also receives new engine cases along with the new cylinder, cylinder head, and exhaust. The 250 uses a single-spark head. Finally, a Beta Moto model that can run in many 250 classes.


 

Specs and Features

Specifications
ENGINE TYPE
Beta Built single cylinder, 2-stroke, liquid cooled, with BPV power valve system and counter balancer, electric start with back-up kick starter sold as an option
BORE
66.4mm
STROKE
72mm
DISPLACEMENT
249.3cc
COMPRESSION RATIO
14.6:1
VALVE TRAIN
Beta Progressive Valve (BPV)
IGNITION
AC-CDI Kokusan
SPARK PLUG
Dual MR7CI8
LUBRICATION
Pre-Mix
FUEL SYSTEM
Keihin PWK 38mm
CLUTCH
Wet Diaphragm-style
TRANSMISSION
5 Speed
FINAL DRIVE
O-ring chain
FRAME
Molybdenum steel / Double Cradle w/ quick air filter access
WHEELBASE
58.7"
SEAT HEIGHT
37.2"
GROUND CLEARANCE
13.4"
FOOTREST HEIGHT
16.6"
DRY WEIGHT
220.5 lbs (wet weight, no fuel)
FUEL TANK CAPACITY
1.5 US Gallons
FRONT SUSPENSION
48 mm KYB AOS Closed Cartridge with adjustable compression & rebound
REAR SUSPENSION
KYB 50 mm body with adjustable rebound and high/low speed on compression adjustment
FRONT WHEEL TRAVEL
12.0"
REAR WHEEL TRAVEL
11.8"
FRONT BRAKE
260 mm floating rotor
REAR BRAKE
240 mm rotor
FRONT/REAR RIM
21" (Front) 19" (Rear)
FRONT/REAR TIRE
80/100 | 120/80
SPECS
*Specifications subject to change without notice. Additional information on all models including manuals, accessories and parts books are available online at www.betausa.com under SUPPORT.
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