Sim racing · head‑to‑head
Choosing between these two heavy hitters comes down to whether you want raw, uncompromised torque overhead or a highly efficient, thermally managed workhorse. The MOZA R21 Ultra pushes maximum power, while the Simagic Alpha EVO Pro focuses on sustained, fade-free performance.
The MOZA R21 Ultra lacks an emergency stop button in the box, which is a safety concern for a 21 Nm base, and its RJ45 peripheral ports can introduce input latency. Meanwhile, some Simagic Alpha EVO Pro users report a loose USB-B port on the back that requires securing to prevent mid-race disconnects.
While early Simagic firmware suffered from a vague front-end feel, recent SimPro Manager 3.x updates have successfully resolved this issue. On the MOZA side, you may want to disable the Hands Off Protection in Pit House to avoid a disconnected force feedback sensation.
If you absolutely need the extra headroom of 21 Nm torque and native front-mounting, the MOZA R21 Ultra is a powerful option despite its lack of an included emergency stop. However, the Simagic Alpha EVO Pro is the more refined choice, offering active cooling to prevent fade and a highly stable $699.00 price point.
| MOZA R21 Ultra 21Nm Direct-Drive Wheelbase | Simagic Alpha EVO Pro 18Nm Direct Drive Wheel Base | |
|---|---|---|
| Brand | MOZA | Simagic |
| Ecosystem | MOZA | Simagic |
| Starting Price | $681.38 (CA$969.00)Best | $699.00 |
| Price trend | Unchanged over 90 days | Unchanged over 90 days |
| Peak Torque | 21 NmBest | 18 Nm |
| Drive Type | direct | direct |
| Max Rotation | 2700 °Best | 2520 ° |
| Connectivity | USB-B | USB |
| Software | MOZA Pit House | SimPro Manager |
| Quick Release | D1-Spec | D1-Spec |
| Weight | 9 kg (19.8 lb) | 8.6 kg (19 lb)Best |
| Mounting | bottom, side, frontBest | bottom, side |
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