2026 450 RX - Beta Motorcycles

LOW FINANCING RATES WITH TERMS UP TO 72 MONTHS! ZERO DOWN AND PAYMENTS AS LOW AS $169/MO! WE OFFER THE BEST PRICE UP FRONT WITH NO HIDDEN FEES!

$7999 OUT THE DOOR! PRICE INCLUDES N.C. TAX AND ALL FEES!

The 2026 Beta 450 RX is a race-ready 450cc 4-stroke motocross bike developed through competition in AMA Supercross and MXGP. Featuring an updated cylinder head, performance-focused piston, revised intake and exhaust systems, new engine mapping, and a redesigned counterbalancer, the Beta 450 RX delivers stronger torque, responsive power, reduced vibration, and confidence-inspiring handling for motocross racing and serious track riding.

Financing is a lost art for most dealers. We work directly with major lenders, meaning approvals in as fast as 30 minutes. We close 90% of our approvals and offer $0 down programs with flexible financing terms. Our job is to streamline the process and ask as little of our customers as possible. Buying a dirt bike shouldn't be an all-day event, and we try to avoid that at all costs.

Avalanche Motorsports is proud to carry Beta Motorcycles and Beta dirt bikes for riders looking for serious enduro, trail, woods, and off-road performance. Whether you're searching for a Beta 350 RR Race, Beta RR, Beta RR Race, 2-stroke dirt bike, 4-stroke dirt bike, enduro motorcycle, off-road motorcycle, trail bike, woods bike, competition motorcycle, or race-ready dirt bike, Beta offers a lineup built for riders who demand performance and control.

Shopping other European enduro and off-road motorcycles? Many riders compare Beta Motorcycles with KTM, Husqvarna, GasGas, Sherco, Rieju, and TM Racing, along with off-road models from Yamaha, Honda, Kawasaki, and Suzuki.

If you're considering a KTM 350 XC-F, KTM 350 EXC-F, Husqvarna FE 350, Husqvarna FX 350, GasGas EX 350F, Sherco 300 SEF, Yamaha WR450F, Honda CRF450RX, or another premium enduro or cross-country motorcycle, check out the Beta lineup at Avalanche Motorsports and compare the performance, equipment, pricing, and riding experience for yourself.

From 2-stroke enduro bikes like the Beta 200 RR, Beta 250 RR, and Beta 300 RR to 4-stroke models like the Beta 350 RR, Beta 390 RR, Beta 430 RR, and Beta 480 RR, Avalanche Motorsports offers Beta motorcycles for trail riding, woods riding, hare scrambles, GNCC, cross-country racing, and off-road adventures.

EXPERIENCE THE DIFFERENCE. EXPERIENCE THE AVALANCHE WAY!!! Engine Type: Single-Cylinder
Displacement: 27.4 cu. in. (449.3 cc)
Bore and Stroke: Bore: 3.82 in. (97 mm); Stroke: 2.39 in. (60.8 mm)
Cooling: Liquid
Compression Ratio: 13.5:1
Fuel System: Gas / Oil Premix
Front Suspension: Inverted Fork
Front Brakes: Hydraulic Disc
Front Tire: Dunlop Geomax MX 34 80/100-21
Rear Suspension: Twin Sided Swing Arm
Rear Brakes: Hydraulic Disc
Rear Tire: Dunlop Geomax MX 34 110/90-19
Dry Weight: 230.4 lb. (104.5 kg.)
Fuel Capacity: 1.5 gal. (5.7 L)
Wheelbase: 58.1 in. (1475.7 mm)
Ground Clearance: 13.2 in. (335.3 mm)
Seat Height: 37.2 in. (944.9 mm)
Transmission: Manual