Altis Sigma Front Brake Kit V2 – Ultra Bee Caliper | EBG
$ 49.00 – $ 369.00Price range: $ 49.00 through $ 369.00
Your Sigma already runs a 260mm rotor, so this is not a size upgrade. It is a floating rotor, semi-metallic pads, a steel-braided line and genuine Sur-Ron Ultra Bee hydraulics, the things a bigger fixed disc cannot fix.
Your Sigma Already Has a Big Rotor. Size Was Never the Problem.
The Altis Sigma leaves the factory with a 260mm front rotor — larger than anything else in this class, and larger than the 240 or 250mm rotor in this kit. So this is not a size upgrade, and we are not going to sell it as one. What it changes is everything a bigger fixed disc cannot fix: warping, fade, pad compound, line flex, and whether your caliper and master cylinder are genuine Sur-Ron Ultra Bee parts.
- A floating rotor, not a fixed one — the carrier lets the braking surface expand instead of coning
- Runs cooler between stops — 3.5mm of 420J2 with cooling grooves and spiral airflow
- Genuine Ultra Bee caliper + master cylinder — not a copy
- Semi-metallic pads and a steel-braided line — the lever stays firm when the rotor is hot
Stock Altis Sigma Front Brake vs EBG Front Brake Kit V2
| Stock Altis Sigma | EBG Front Brake Kit V2 | |
|---|---|---|
| Rotor | 260 mm | 240 or 250 × 3.5 mm |
| Rotor type | Fixed, one-piece solid | Floating, bobbinless, with cooling grooves |
| Caliper | Factory OEM | Genuine Sur-Ron Ultra Bee |
| Master cylinder | Factory OEM | Genuine Sur-Ron Ultra Bee, right hand |
| Pads | Factory pads | Semi-metallic, genuine Surron |
| Line | Standard rubber hose | Steel-braided, PTFE core, DOT4 |
This kit is a hydraulics and rotor-construction upgrade, not a diameter upgrade. If your stock 260mm rotor is straight and your lever is firm when hot, you do not need it.
Floating vs Fixed — What Actually Changes
A fixed rotor is one piece of steel bolted rigidly to the hub. Heat it hard and the braking surface wants to grow while the centre stays put, so it cones, and you feel that as pulsing at the lever and, eventually, as a permanent warp. A floating rotor separates the braking ring from the carrier so the ring can expand freely. That is why a 250mm floating disc can outlast and out-behave a larger fixed one, and why we would rather change the construction than chase the diameter.
Genuine Sur-Ron Ultra Bee Parts — Not Copies
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 Altis Sigma kit we ship uses genuine Sur-Ron Ultra Bee parts.
Which Altis Sigma Brake Option Do I Need?
Four ways to buy it:
- Brake Kit + Front Rotor Guard + Rotor — nothing left to order. Guard fitted over the rotor.
- Brake Kit + Rotor — same, minus the guard.
- Brake Kit Only — hydraulics and bracket, no rotor.
- Front Brake Bracket Only — M5 x 45mm radial mount bracket by itself.
Options that include a rotor let you choose the V2.1 or V3.0 rotor design. Both are 240 or 250mm at 3.5mm.
What’s in the Box
Contents by option:
- 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
- Front rotor guard — with the Rotor Guard option
Altis Sigma Front Brake Kit Specifications
- Rotor: 240 or 250mm × 3.5mm floating, bobbinless, cooling grooves
- Rotor material: 420J2 stainless, heat treated for hardness and resistance to deformation
- Caliper: genuine Sur-Ron Ultra Bee hydraulic
- Master cylinder: genuine Sur-Ron Ultra Bee, right hand
- Bracket: radial mount, M5 x 45mm
- Line: steel-braided, PTFE core
- 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 Altis Sigma Models
- Altis Sigma
Bracket cut for the Sigma 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.
| Weight | 2.5 kg |
|---|---|
| color | Black, Blue, Galaxy Purple, Raw Silver, Red |
| Brake Option | Brake Kit + Front Rotor Guard + Rotor V2.1 (M5x45mm), Brake Kit + Front Rotor Guard + Rotor V3.0 (M5x45mm), Brake Kit + Rotor V2.1 (M5x45mm), Brake Kit + Rotor V3.0 (M5x45mm), Brake Kit Only, Front Brake Bracket Only |
| size | 240mm, 250mm |
| Model | Altis Sigma 2025, Altis Sigma 2026 |
Shipping Policy
Processing Time
Within 1-2 business days after an order is placed, the item will be handed over to the carrier, and the shipping label will be created. Once your package has been picked up by the carrier, you can track its delivery using the following link: https://www.17track.net/en. Please note that orders will not be processed on weekends or public holidays.
Delivery Time
Our goal is to process and ship your orders efficiently. All products are shipped from Vietnam. Depending on the destination and transportation method, delivery times are as follows:
- United States, Canada, Europe (Standard Shipping): 3-5 business days.
- Other Regions (Standard Shipping): 7-10 business days.
Delivery times may vary due to factors beyond our control, such as customs delays or force majeure.
Order Tracking
An email with tracking details will be sent once your item is dispatched. This will allow you to follow your package’s journey. If you do not receive this email or need additional shipping information, please contact us at ebgvietnam@gmail.com.
Contact Information
For any inquiries, please reach out to us at:
- Address: 225 Nguyen Tieu La Street, Ward 8, District 10, Ho Chi Minh City, VietNam.
- Mobile: +84979681368 (WhatsApp, Telegram)
- Email: ebgvietnam@gmail.com
- Website: https://ebikegarage.shop/
Note
- Pre-order and customized products are excluded from the standard processing and delivery times. The expected delivery date will be stated in the product description or confirmed during order placement.
- Ebike Garage is not responsible for any damage, loss, or theft of goods caused by third-party carriers after the package has been dispatched.
- We are unable to ship to P.O. boxes, APO/FPO addresses, or locations in Puerto Rico and Alaska.
Shipping Policy for Bulk Orders (Dealership)
For bulk orders, we recommend the following:
- Use your own preferred logistics provider to ensure safe delivery.
- Alternatively, you may pick up the goods from our warehouse in Vietnam.
- If neither option is available, we will arrange shipment with a third-party carrier. However, Ebike Garage will not be liable for any damage, loss, or theft caused by third-party carriers once the goods leave our warehouse.
Third-Party Shipping Processing Time
Spot goods will be handed to the carrier within 1-2 business days of order placement. The carrier will process packages within 2 business days of pick-up. Tracking information will be available through: https://www.17track.net/en.
Delivery Areas and Estimated Shipping Time
| Shipping Method | Region | Estimated Delivery Time (Business Days) |
|---|---|---|
| Standard Shipping (UPS, FedEx, DHL) | United States, Canada, France, Germany, UK, Italy, Australia, New Zealand, etc. | 3-5 |
| Brazil, Chile, Russia, South Africa | 7-10 | |
| UAE, Kuwait, Saudi Arabia, Lebanon | 7-10 | |
| All Other Countries | 7-10 |
Address Accuracy
Please ensure that your shipping address is accurate when placing an order. Incorrect addresses may delay or prevent delivery.
Shipping Costs
We offer door-to-door delivery services using local carriers such as UPS, FedEx, or DHL. Shipping costs will be calculated at checkout based on your location and the size of your order.
30-Day Limited Warranty
Eligible EBG-branded products are covered against confirmed manufacturing defects for 30 calendar days from the carrier-recorded delivery date. Product-specific coverage takes precedence.
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