RFLOXA Ultra43 Front Fork – Surron Ultra Bee (251mm, 27lbs Spring)
- RFLOXA Ultra43 Upside-Down front fork for Sur-Ron Ultra Bee (251mm travel, 27lbs spring / 75–105kg). Built from the ground up for extreme off-road riding. Precise steering, excellent bump absorption and resistance to dynamic loads. Ideal for hard enduro a
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RFLOXA Ultra43 Front Fork – Surron Ultra Bee (251mm, 27lbs Spring / 75kg-105kg)
Take control and stability of your Surron Ultra Bee to the absolute highest level. The RFLOXA Ultra43 is an uncompromising Upside-Down front fork, designed from the ground up for extreme off-road riding on high-performance electric bikes. No more bottoming out or front-end nervousness in heavy terrain – it's time for a factory advantage.
Key Features & Technology:
Maximum Stiffness (∅43mm): Reinforced 43mm fork tubes easily handle heavy loads, bike weight, and aggressive riding styles, eliminating fork twist in deep ruts.
DLC Coating & SKF Seals: Proprietary DLC (Diamond-Like Carbon) coating drastically reduces friction, ensuring buttery-smooth suspension response on the smallest bumps. Premium SKF oil seals guarantee longevity and zero leaks.
Symmetric Dual Spring Design: Upside-Down oil/dual spring system with independent, symmetric internal operation of the left and right legs delivers perfect balance and precise handling.
Heavy-Duty CNC Machining: Fork lowers, dropouts, and the reinforced, weight-optimized Hollow Triple Clamp are entirely CNC-machined from aerospace-grade AL6061-T6 aluminum. The assembly is secured with EU-standard zinc-nickel alloy fasteners for maximum corrosion resistance.
Full Adjustability – Tune the Suspension to Your Ride
The RFLOXA Ultra43 features advanced multi-stage damping, allowing you to perfectly dial in the front end for any track or enduro trail:
High-Speed Compression Damping: 30 Clicks – control for hard landings and sudden impacts.
Low-Speed Compression Damping: 10 Clicks – stability through corners and reduced front-end dive under heavy braking.
Rebound Damping: 18 Clicks – precise wheel return to the ground without the catapult effect.
Spring Preload: 17 Clicks – perfect sag adjustment and balance.
Spring Rate Chart (Choose for Your Weight):
The fork comes equipped with an ultra-durable 55CRSI steel spring. Choose the ideal variant for your riding style:
| Spring Rate | Rider Weight (including gear) |
| 24 lbs | 65 kg – 85 kg |
| 27 lbs (Included) | 75 kg – 105 kg |
| 30 lbs | 95 kg – 135 kg |
Technical Specifications:
Fitment Bike: Surron Ultra Bee (Off-Road Electric Dirt Bike)
Main Piston Travel: 251 mm
Center Distance (Length): 850 mm
Tube Diameter: ∅43 mm (Reinforced)
Caliper Mount Spacing: 78.5 mm
Disc Brake Size: ∅240 mm
Damping System: Upside-Down Oil / Dual Spring / Symmetric Internal
Equip your Ultra Bee with a suspension that actually matches its power.
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