Saifu V3 Antweight Complete Combat Robot Kit
Saifu Antweight Combat Robot Kit (v3)
Tournament-proven power. Builder-customized performance.
Build your own version of the legendary Saifu 3 — a 1lb (454g) antweight chassis kit with a proven track record in over 18 combat robotics events. This Complete Kit includes chassis, weapon, drive, ESCs, battery, wiring harness, wheels and hubs — just add a transmitter/receiver and a LiPo charger if this is your first bot.
- Battle-tested chassis: Durable UHMW frame with bolt-on armor panels
- Hard-hitting weapon: Precision-machined aluminum hubmotor beater bar with hardened, replaceable steel bolt teeth
- Advanced control: Titanium reversible forks for self-righting and opponent engagement
$569.99
Designed by a Combat Robotics Veteran!
The Saifu 3 Antweight Chassis & Drum Kit was designed by veteran builder Peter Smith of Team Rolling Thunder, creator of over 20 combat robots. Now in version 3.0, Saifu represents years of evolution and battle-tested experience in the antweight class.
COMPLETE KIT! ALL PARTS FOR THE BOT INCLUDED!
The Saifu 3 Antweight Complete Kit isn’t available on the Kitbots site. However, because ItGresa is your trusted source for all components, we are able to provide you with a complete kit — everything you need for the bot itself.
Durable, Lightweight, and Built to Hit Hard
This version of Saifu features a tough UHMW chassis with integrated wheel guards and carbon fiber top and bottom plates. The frame is designed to absorb abuse while keeping your components protected round after round. The Complete Kit includes everything you need — wheels, hubs, motors, ESCs, and a wiring harness to put it all together with minimal soldering.
Powerful Hubmotor Weapon System
The Saifu’s beater bar weapon is a precision-machined aluminum hubmotor — one of the first commercially available in combat robotics. It uses replaceable hardened steel bolt teeth for long life and easy maintenance. Because it’s a direct-drive design, there are no belts or pulleys to break under impact.
Battle-Tested. Builder-Approved.
Saifu has competed in over 18 events, including Motorama. It’s a proven, powerful, and customizable platform for antweight robot builders who want a serious edge in the arena.
What’s Included in the Saifu COMPLETE Kit
- UHMW chassis rails (left and right sidewalls)
- Carbon fiber top and bottom panels
- Carbon fiber front bulkhead
- UHMW rear armor strip
- Aluminum hubmotor weapon drum (preassembled with magnet ring and bearings)
- Weapon motor stator (pre-wired)
- Replaceable hardened steel bolt teeth (4)
- ¼-20 aluminum axle bolt + nut + washers
- Kit hardware: nutstrips, screws, washers, self-tapping fasteners, etc.
- 2 titanium horns (weapon forks)
- Zip tie for wire management
- Two Repeat Robotics plug-and-play motors
- Repeat Robotics Plug-and-play Dual ESC
- Pair of FingerTech Aluminum Twist Hubs
- Pair of FingerTech Snap Wheels (2in × 0.5in)
- BL20A Weapon ESC
- 300mAh LiPo battery with XT30 connector
- MR30 Connector
- 2mm bullet connectors
- Saifu wiring harness
What You’ll Need to Complete the Saifu Chassis Kit
This weaponized antweight complete kit has everything you need to complete the bot itself. If this is your first bot, you’ll need a transmitter/receiver and LiPo battery charger. See below for recommendations. For assembly, refer to the Saifu assembly instructions (PDF).
Assembly requires a 5/64in hex wrench and a small Phillips screwdriver.
This kit is recommended for intermediate to advanced builders.
Saifu Features:
- Saifu 3 — new revision complete kit (full parts included for the bot chassis & weapon).
- Complete kit includes everything to build the robot itself; transmitter/receiver and LiPo charger are required but reusable across builds.
- Clear, downloadable assembly instructions for faster build times.
- Custom hubmotor beater-style weapon drum delivered preassembled with motor and bearings.
- 2300kV weapon motor for high RPM and impactful strikes.
- Durable UHMW chassis with integrated wheel guards for impact protection.
- Pro-grade materials throughout: UHMW, titanium horns, carbon fiber plates, and a Grade-8 weapon axle.
- Weapon equipped with curved neodymium magnets for improved rotor retention and balance.
- Plug-and-play wiring harness — Saifu harness with 2mm bullet connectors for minimal soldering and fast changeout.
- Modular internals and accessible hardware for fast part replacement between matches.
Maintenance
For the best viewing of the maintenance ordering table on a phone, please rotate your phone to landscape mode.
For wheels, select 2.00in x 0.50in For hubs, select 3mm x 0.50in| Product | Description | Stock Status | Price | Qty |
|---|
Product Specs
| Element | Description |
|---|---|
| Chassis with Drum Weight: | 512.7oz (362g) |
| Drum weight: | 6.9oz (195.6g) (includes axle, motor, etc.) |
| Length: | |
| Width: | |
| Height: | |
| Materials: |
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| Weapon motor KV: | 2300kV |
Frequently Asked Questions (FAQ)
Is this a complete combat robot?
Yes! This "Saifu Complete" kit comes with wheels, hubs, plug-and-play internals, weapon ESC, and everything you need to complete the bot. It does still require a transmitter/receiver and a LiPo charger if this is your first bot. These tools are reusable if you already have them for another build.
Who is this kit best suited for?
The Saifu kit is designed for intermediate to advanced builders who want everything in one bundle, including the weapon, drive, and wiring harness.
Do I need to buy a transmitter and charger with every build?
No. Your transmitter and charger can be reused across multiple robots. If this is your first build, you’ll want to grab our Radio Starter Pack and Smart Charger. For future builds, you can simply reuse those components.
What’s included in the kit?
The kit includes the UHMW chassis, carbon fiber plates, hubmotor weapon drum (with motor), titanium forks, hardware, FingerTech Snap Wheels, Twist Hubs, Repeat Robotics plug-and-play drive motors, Dual ESC, weapon ESC, wiring harness, MR30 connector, and 2mm bullet connectors.
Does the kit come with a wiring harness?
Yes. The pre-built Saifu wiring harness is included, along with a FingerTech Mini Power Switch for safe and reliable on/off control.
What drive motors and wheels come with the kit?
The kit includes Repeat Robotics plug-and-play brushed motors with 3mm output shafts and 2mm bullet connectors. It also comes with FingerTech Twist Hubs and Snap Wheels sized at 2in × 0.5in foam tires.
What makes the Saifu kit unique?
Saifu features a direct-drive hubmotor weapon, durable UHMW construction, and a tournament-tested design used in over 18 events. It’s a rugged, flexible platform for serious builders who want proven performance.