Product Documents
JCR SSP 2.0 Pro Brushless Beetleweight Combat Robot Kit
SSP Pro — Faster, Better, Brushless
Go from first drive to first win with the SSP 2.0 Pro brushless beetleweight combat robot kit — a competition-proven 3-lb control bot/lifter that has been taking home trophies since its release. Built on a single-piece UHMW billet chassis for durability and fast repairs, the SSP Pro is a no-spinning-weapon design, which means no test box required — you can drive and test anywhere. Blitz Lite brushless drive motors and a compact JCR-RC AM32 35A ESC deliver crisp, punchy control on 4S LiPo, while a quick 42 kg-cm brushless arm servo makes confident flips. The Just Cuz Motherboard simplifies wiring (power distribution, switch, LED, dual BECs) so you spend time fighting, not troubleshooting. Forks and a wedge are included, CAD files make mods easy, and the lean layout leaves weight for upgrades. Sold individually.
$535.00
4 in stock (can be backordered)
Get ready to upgrade your beetleweight combat experience with the SSP 2.0 Pro brushless kit. Designed for builders seeking a lightweight, powerful, and competition-proven robot, the SSP Pro combines durable construction, precise control, and modular flexibility — all in a single package that’s ready to assemble and battle. As a control bot/lifter with no spinning weapon, no test box is required — you can drive and test anywhere.
What it is / Who it’s for
The SSP 2.0 Pro brushless beetleweight combat robot kit is the brushless edition of the popular beetleweight kit from Just ‘Cuz Robotics. It’s designed for builders who want a proven, trophy-winning beetleweight platform with modern brushless drive, clean wiring, and straightforward assembly.
How it works
The Pro configuration upgrades the drivetrain to Blitz Lite brushless drive motors paired with JCR-RC AM32 35A ESCs on a 4S power system, giving stronger acceleration and higher efficiency. A custom Motherboard simplifies wiring, and the kit retains the modular front-end system so you can swap wedges and forks quickly.
What’s included / What you’ll need
Every SSP 2.0 kit includes the robot core, three front-end configurations (two fork options and a wedge), a receiver, a battery, and the custom motherboard. The vertical spinner module is sold separately. Refer to the latest assembly guide and the ItGresa List of maintenance parts (below, under the maintenance tab) before ordering accessories. A full list of additional hardware is available here.
Why this kit
The SSP 2.0 design builds on hundreds of kits in the field and updates the design with a focus on modularity, reliability, and upgradability. In terms of modularity and maintenance, what good is a combat bot without the ability to replace parts? ItGresa is committed to carrying as full a line of parts as we possibly can for your “one stop shop”.
The brushless Pro drive brings more power without adding complexity.
Safety & best practices
As a control bot with no spinning weapon, the SSP Pro can be driven and tested without a test box or enclosed arena. Balance-charge LiPos and inspect wiring, hubs, and fasteners after each match. Note: if you add the optional vertical spinner module, a test box is required for weapon testing.
Learn more / Guides
Latest Assembly Guide and Included Parts List are provided by the manufacturer.
Safety Warning:
Weaponized robots are not toys. Spinning weapons generate extreme kinetic energy—comparable to a power tool. Always use caution, engage a weapon lock, and test kinetic energy only within a secure arena or test box. Note: the SSP Pro base kit has no spinning weapon and does not require a test box — however, if you add the optional vertical spinner module, all spinner safety rules apply.
Resources for robot safety and safe testing:
- ItGresa Combat Robotics Safety Guide
- FingerTech Combat Robot Safety Guide
- FingerTech Test Box Build Instructions (PDF)
Just ‘Cuz Robotics Test Box video:
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Features
- Competition-proven platform — the SSP 2.0 Pro brushless beetleweight combat robot kit has been taking home trophies since its release
- No test box required — control bot/lifter design with no spinning weapon means you can drive and test anywhere**
- Brushless drive — Blitz Lite 2850kV gearmotors and JCR-RC AM32 35A ESCs deliver more speed, power, and runtime on 4S
- Everything included — multiple defensive options, FS2A receiver, and 4S LiPo battery all in the box
- Highly modular and upgradeable — one of the most modular beetleweights available; front slot for vertical spinner attachment
- Clean wiring — custom JCR Motherboard handles power distribution, switch, LED, and dual BECs in one package
- Fast front-end swaps — swap wedge, claw forks, or barbed forks in minutes
- 20×20mm servo pocket mount holes — fits 4-in-1 drone ESCs for advanced builds
- Strong community support — active builder community, CAD files included, spares stocked at ItGresa
"2.0 with the Blitz brushless motors is crazy powerful. It's zippy and has all the pushing power you need."
Notes:
- Small hardware and 3D printed parts are not listed in this maintenance table
- The SSP UHMW chassis and Titanium lids are no longer offered in SSP 1.0 versions
- G10 lids for SSP 1.0 are only available for a limited time. When they are gone, they are gone
- Select Dragon motors for SSP Standard; select Blitz Lite motors for SSP Pro
- Select the 74T 222mm belt (4mm wide)
This robot requires a transmitter and receiver-compatible charger to operate. If you don't already have these, we suggest the FS-i6 and C6D charger, or pick up one of our bundles.
| View | Kit | Description | In Stock | Price | Qty Per Kit | Buy |
|---|
SSP 2.0 Pro Specifications
| Specification | Details |
|---|---|
| Chassis | Single-piece UHMW billet chassis (Ultra High Molecular Weight Polyethylene), machined to precise tolerances |
| Drive Motors | Blitz Lite 2850kV brushless gearmotors |
| Drive ESC | JCR-RC 35A AM32 brushless ESC — open-source firmware, active braking, bidirectional control |
| Drive Shaft | 6mm |
| Arm Servo | 42 kg-cm brushless servo — approximately 60% faster than the Standard coreless servo |
| Wiring | JCR Motherboard — power distribution, switch, LED, dual voltage BECs |
| Battery | Tattu 450mAh 4S LiPo with XT30U connector — included; fits up to 4S 850mAh |
| Receiver | FS2A 2.4GHz (AFHDS-2A protocol) — included |
| Wheels | LEGO tire front wheel set and rear wheel set — included; upgradeable to cast urethane front and rear wheels |
| Lid | 2.5mm G10 fiberglass composite lid — included; upgradeable to titanium lid |
| Front-End Options | Barbed forks, claw forks, and wedge — all included |
| Spinner Module | Vertical spinner module sold separately |
| Additional Features | Front slot for vertical spinner attachment; 20×20mm mount holes in servo pocket (fits 4-in-1 drone ESCs) |
| Assembled Weight | ~2.2lb with fixed forks (~13oz remaining for customization). Actual weight varies by configuration. |
| CAD Files | Available for all components — see Product Documents |
Frequently Asked Questions
What makes SSP Pro different from SSP Standard?
Both kits share a super-durable UHMW billet chassis and simplified wiring via the JCR Motherboard. The Pro upgrades the drivetrain to brushless motors and ESC, moves to a higher-performance brushless arm servo, and runs 4S power for more responsiveness, while keeping similar overall size and slightly lower weight.
| Category | SSP Standard | SSP Pro |
|---|---|---|
| Chassis | Billet UHMW chassis redesigned from the ground up | Same |
| Lid | 2.5mm G10 fiberglass composite | Same |
| Wheels | 1.7in LEGO tires standard. Upgradeable to cast. | Same |
| Drive Motors | DartBox Dragon brushed | Blitz Lite brushless, 2850kV |
| Drive Shaft | 4mm | 6mm |
| Hubs | 4mm | 6mm |
| Drive ESC | WEKA 2×20A dual brushed ESC | JCR-RC AM32 brushless 35A |
| Servo Lift | 32kg-cm | 42kg-cm |
| Servo Type | Coreless | Brushless "Speedy" servo, ≈60% faster |
| Battery | 3S LiPo 550mAh included; fits up to 3S 1100mAh. 4S is not recommended with Dragon motors | 4S LiPo 450mAh included; fits up to 4S 850mAh |
| Wiring / Power Dist | JCR Motherboard: power dist, switch, LED, dual BEC | Same. JCR Motherboard: power dist, switch, LED, dual BEC |
| Receiver | FS2A 2.4GHz (AFHDS-2A compatible) | Same. FS2A 2.4GHz (AFHDS-2A compatible) |
| Attachments Included | Barb Forks, Claw Forks, Wedge | Same. Barb Forks, Claw Forks, Wedge |
| Upgrades Available | Vertical Spinner Module, side skirt armor, titanium lid, cast urethane wheels | Same |
| Additional Features | — | Front slot for vertical spinner attachment; 20×20mm mount holes in servo pocket (fits 4-in-1 drone ESCs) |
| Weight (assembled, fixed forks) | ≈2.3lb | ≈2.2lb |
| Available Weight for Add-ons | ~11oz (claw forks +0.08lb; wedge +0.2lb) | ~13oz |
| Price | $450 | $535 |
Notes: If a difference isn't called out in the Pro column, assume it's the same as the Standard kit. Weights are approximate and depend on configuration and printed parts.
Is the vertical spinner included?
No. The vertical spinner module is sold separately. The kit includes the core robot and modular front ends (two fork options and a wedge).
What's included with the kit?
The robot core, three front-end configurations, a battery, a receiver, and a custom motherboard. See the latest assembly guide and parts list for details.
How long does shipping take?
Typical lead time is 2–7 days after purchase.
What battery voltage does the Pro use?
The Pro brushless configuration uses a 4S system. Always balance-charge and follow LiPo safety best practices.
