Rfloxa Ultra 43 Fork for Sur-Ron Ultra Bee

The Rfloxa Ultra 43 fork is designed specifically for the Sur-Ron Ultra Bee. Reinforced Ø43 mm tubes, 251 mm travel and full damping adjustment — built for aggressive off-road riding and jumps.

Why the Ultra Bee needs a different fork

The Ultra Bee is heavier and more powerful than the Light Bee, and once the software limiter is removed the gap gets bigger still. The Ultra 43 answers that with thicker tubes (Ø43 mm instead of the usual Ø37 mm), longer travel and a bigger brake disc — this is not the same fork in another size, it is a different class of build.

What it fits

• Sur-Ron Ultra Bee

Got a Light Bee or a Talaria? You need the Hawk 31 Max or the Hawk 31 Pro.

Choosing the spring — 251 mm travel

• 24 lbs: 65–85 kg
• 27 lbs: 75–105 kg
• 30 lbs: 95–135 kg

These are rider weights in full kit. On the border between two ranges your riding style decides: jumps and aggressive riding — the stiffer spring; technical riding — the softer one. If you're not sure, get in touch before you order.

Specification

• Axle spacing (centre distance): 850 mm
• Main piston travel: 251 mm
• Tube diameter: Ø43 mm (reinforced)
• Brake caliper mount spacing: 78.5 mm
• Brake disc: Ø240 mm
• Damping system: inverted oil, twin spring, symmetrical internals in the left and right legs
• Seals: SKF, DLC coating
• Material: CNC machined AL6061-T6 aluminium lower mounts, zinc-nickel plated bolts, CNC machined axle mount (dropout)
• Spring: 55CRSI steel
• Top clamp (Triple Clamp): reinforced, hollowed out, CNC machined
• Intended use: electric dirt bikes, downhill bikes

Adjusters

• High-speed compression: 30 clicks — sharp hits, rocks, landings
• Low-speed compression: 10 clicks — braking and weight transfer
• Rebound: 18 clicks
• Spring preload: 17 clicks

Start from the manufacturer's baseline settings, one click at a time and one change per run — otherwise you won't know what did what.

Lead time

12 working days.

Related parts

• Rfloxa RAF55RV rear shock — also for the Ultra Bee, so the front and rear work together
• Rear shock cover
• Sur-Ron Ultra Bee parts and e-moto suspension

See also: tuning the Ultra Bee — where to start.

Shipping →