# CubeMars RI80 V2.0 KV75 Frameless Inrunner Torque Motor

![CubeMars RI80 V2.0 KV75 Frameless Inrunner Torque Motor](https://parts.trymaglev.com/img/mo-cubemars-ri80-v2-kv75.webp)

Low-cost 85 mm frameless inrunner kit with 40.5 mm bore for cobot arms and exoskeleton joints; Hall and no-Hall versions.

- Maglev ID: mo-cubemars-ri80-v2-kv75
- Brand: CubeMars
- MPN: RI80 V2.0 KV75
- Category: motors / Frameless BLDC Torque Motors
- Origin: CN (maker HQ, factory not confirmed)
- Maker: CubeMars (T-Motor) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: 1 · Lead time: unknown (store showed sold out)
- Confidence: VERIFIED

## Price
- 1+: $132.90 (list, 2026-10-29, https://store.cubemars.com/products/ri80)

## Specifications
- Peak torque: 4.1 Nm
- Continuous torque: 1.45 Nm rated
- Outer diameter: 85 mm
- Axial length: 27 mm overall
- Voltage: 24/36/48 V
- Mass: 411 g
- Through bore: 40.5 mm
- KV: 75 rpm/V
- Rated current: 9.4 A

## Links
- Product: https://www.cubemars.com/product/ri80-v2-0-kv75-frameless-inrunner-torque-motor.html
- Datasheet: none
- CAD: https://www.cubemars.com/product/ri80-v2-0-kv75-frameless-inrunner-torque-motor.html

## Equivalents
- TQ-RoboDrive ILM70x10 Servo Kit (mo-tq-robodrive-ilm70x10)
- TQ-RoboDrive ILM85x13 Servo Kit (mo-tq-robodrive-ilm85x13)
- CubeMars RO80 KV105 Frameless Outrunner Torque Motor (mo-cubemars-ro80-kv105)

## Works with
- ODrive Pro High-Power BLDC Controller (mo-odrive-pro)
- moteus-n1 Brushless Servo Controller (mo-moteus-n1)

## Sources
- https://www.cubemars.com/product/ri80-v2-0-kv75-frameless-inrunner-torque-motor.html (specs, STEP/2D drawing downloads; note page lists peak current as 27.6 A in one table and 9.4 A in another)
- https://store.cubemars.com/products/ri80 (price $132.90, sold out)