Convert the X3 to Ultra Bee Hydraulics, With a Shield Guard
SRPNT sells the X3 front brake as a single own-brand assembly, built around a 220mm fixed rotor. This kit converts it to genuine Sur-Ron Ultra Bee hydraulics — caliper and master cylinder — on a 240 or 250mm floating rotor and a steel-braided line, behind the closed-face shield guard.
- Closed-face guard — a solid plate over the disc, in seven anodised finishes
- Parts you can actually service — Ultra Bee pads, seals and levers are stocked everywhere
- Built for repeat stops — floating rotor, cooling grooves, semi-metallic pads
- Genuine Ultra Bee caliper + master cylinder — not a copy
Classic Shield or Open Frame — Which EBG Guard?
This kit and the V2 kit are the same brake. The only thing that changes is the rotor guard, and that is a choice about how you ride, not about stopping power.
| Classic Shield — this kit | Open Frame — V2 kit | |
|---|---|---|
| Guard face | Solid plate, closed face | Open frame, rotor left exposed |
| Colours | 7 — including Grey and Dark Brown | 5 |
| Caliper | Genuine Sur-Ron Ultra Bee | Identical |
| Master cylinder | Genuine Sur-Ron Ultra Bee, right hand | Identical |
| Rotor | 240 or 250 × 3.5 mm floating | Identical |
| Pads and line | Semi-metallic, steel-braided PTFE | Identical |
| Price | The same either way — pick the guard you prefer | |
See the same kit with the open-frame V2 guard →
Why the Conversion Is Worth It on an X3
A worn caliper or a leaking master cylinder on the stock X3 brake means ordering from one supplier and waiting. Ultra Bee parts are the opposite: pads, seals, levers and rebuild kits are on the shelf at every shop that touches this class of bike. The performance is the reason to fit this kit; being able to keep it running is the reason it stays fitted.
Genuine Sur-Ron Ultra Bee Hydraulics
The market is full of Ultra Bee caliper and master cylinder copies. They photograph the same and cost less, and the difference is in the piston bores and the seals — which you find out on a steep descent. Every SRPNT X3 kit we ship uses genuine Sur-Ron Ultra Bee parts.
Which SRPNT X3 Option Do I Need?
- Brake Kit + Front Rotor Guard + Rotor — the complete kit with the classic shield guard. Choose the V2.1 or V3.0 rotor.
- Brake Kit + Rotor — the same, without the guard.
- Brake Kit Only — for a bike already running a 240 or 250mm rotor.
- Front Brake Bracket Only — the radial mount bracket on its own, M5 x 45mm.
What’s in the Box
- Genuine Sur-Ron Ultra Bee caliper
- Genuine Sur-Ron Ultra Bee right-hand master cylinder
- Genuine Surron semi-metallic pads
- Steel-braided brake line, PTFE core
- Radial mount bracket, M5 x 45mm
- Floating rotor 240 / 250mm — with the Rotor options
- Classic shield front rotor guard — with the Rotor Guard option
SRPNT X3 Front Brake Kit Specifications
- Guard: classic closed-face shield, CNC aluminium, seven anodised finishes
- Rotor: 240 or 250mm × 3.5mm floating, bobbinless, cooling grooves
- Rotor material: 420J2 stainless, heat treated
- Caliper: genuine Sur-Ron Ultra Bee hydraulic
- Master cylinder: genuine Sur-Ron Ultra Bee, right hand
- Bracket: radial mount, M5 x 45mm
- Fluid: DOT4
- Shipping weight: 2.5 kg complete kit · 2.3 kg kit + rotor · 1.45 kg kit only · 0.1 kg bracket only
Fits These SRPNT X3 Models
- SRPNT X3
Bracket cut for the X3 fork. Some forks need 0.5–1.5mm shim washers. Bleed the line after fitting.
Not sure it fits your setup? Leave a note at checkout and we will confirm before we ship.




















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