Description
Stage 3 – Power + Suspension
Stage 3 combines everything included in Stage 1 with major upgrades to both power and suspension on the 2026 Surron Ultra Bee.
The EBMX X-9000 V3 Controller adds substantially more power and tuning capability, while the Sirris F43 fork and Sirris R46 rear shock replace the stock suspension with a performance-focused front and rear setup. Stage 3 also includes the Sirris R46 Shock Triangle and front and rear BikeMaster rim locks.
This package is built for riders who want to upgrade both sides of the bike at once — more control over power delivery and a suspension system capable of supporting more aggressive off-road riding.
Everything in Stage 1
- 21" ION Front Wheel Upgrade
- Dunlop Geomax MX54 Front Tire
- BikeMaster TR6 Heavy-Duty Front Inner Tube
- ODI Ruffian Half-Waffle Grips
- ODI Podium MX Handlebars
- Warp9 Ultra Bee Foot Pegs
- ECD Ghostlines Graphics Kit
- Dunlop Geomax MX54 Rear Tire
- BikeMaster TR6 Heavy-Duty Rear Inner Tube
Stage 3 Adds
- EBMX X-9000 V3 Controller Kit
- BikeMaster 1.60" Front Rim Lock
- BikeMaster 1.85" Rear Rim Lock
- Sirris F43 Fork – Choice of Tune
- Sirris R46 Rear Shock – Choice of Tune
- Sirris R46 Shock Triangle – Gold
EBMX X-9000 V3 Power
The EBMX X-9000 V3 replaces the stock controller with a much more capable power and tuning platform. It gives the rider significantly more control over power delivery, throttle response, regenerative braking, and overall bike behavior.
- Up to 50kW rated output
- 1000A continuous phase current
- 1600A burst phase current
- Six customizable power levels
- Adjustable throttle response
- Adjustable regenerative braking
- EBMX app tuning
- Built-in IMU with programmable wheel-lift control
- Compatible with the Ultra Bee OEM display and peripherals
Sirris F43 Front Fork
The Sirris F43 replaces the factory fork with a purpose-built Ultra Bee suspension platform designed for aggressive eMoto riding.
- 43mm upside-down fork architecture
- 246mm suspension travel
- Symmetrical closed-cartridge damping
- External compression and rebound adjustment
- Hydraulic bump stop
- Direct-fit Ultra Bee design
- Choice of suspension tune
Sirris R46 Rear Shock
The Sirris R46 completes the suspension upgrade with a high-flow rear shock designed specifically around the Surron Ultra Bee.
- 46mm high-flow piston
- 320mm shock length
- 85mm stroke
- External compression and rebound adjustment
- Pressure-balanced piggyback design
- Fully serviceable and tunable
- Choice of suspension tune
Sirris R46 Shock Triangle
Stage 3 includes the Gold Sirris R46 Shock Triangle as part of the rear suspension package. The higher-clearance triangle provides additional room around the larger R46 shock and spring assembly.
Front & Rear Rim Locks
BikeMaster rim locks are added to both wheels to help prevent tire movement on the rim during harder acceleration, braking, and lower-pressure off-road riding.
- Front: 1.60" BikeMaster Rim Lock
- Rear: 1.85" BikeMaster Rim Lock
Power + Suspension
Stage 3 brings the two major performance areas together. The X-9000 V3 expands the Ultra Bee's power and tuning capability, while the Sirris F43 and R46 provide the suspension control needed for more aggressive riding.
Stage 3 builds on the complete Stage 1 wheel, tire, cockpit, foot-control, and graphics package with upgraded power, front and rear suspension, and rim locks.
Cancellation & Documentation Fees: Due to credit card, PayPal, financing, and other transaction processing costs, canceled bike purchases are subject to a non-refundable 3% cancellation fee. Any applicable dealer documentation fees cover administrative processing, including manufacturer warranty registration and documentation required for the Manufacturer’s Certificate of Origin (MCO).
Off-Road Use & Vehicle Compliance: This vehicle is sold for off-road use only unless otherwise expressly stated. Certain vehicles may be delivered with factory- or dealer-installed speed or power limitations to comply with applicable federal, state, or local requirements. Removing, unplugging, bypassing, or otherwise modifying these restrictions is done at the owner’s discretion and risk. The purchaser is responsible for understanding and complying with all laws and regulations governing the registration, licensing, insurance, equipment, modification, and operation of the vehicle in the area where it is used. Modifying the vehicle may also affect its legal classification, warranty coverage, registration eligibility, or insurance coverage.
UTAH VEHICLE DISCLOSURE: THIS VEHICLE IS NOT AN "ELECTRIC ASSISTED BICYCLE" AS DEFINED BY UTAH MOTOR VEHICLE CODE AND IS INSTEAD A TYPE OF MOTOR VEHICLE AND SUBJECT TO APPLICABLE MOTOR VEHICLE LAWS IF USED ON PUBLIC ROADS OR PUBLIC LANDS. YOUR INSURANCE POLICIES MAY NOT PROVIDE COVERAGE FOR ACCIDENTS INVOLVING THE USE OF THIS VEHICLE. TO DETERMINE IF COVERAGE IS PROVIDED YOU SHOULD CONTACT YOUR INSURANCE COMPANY OR AGENT.