Sim racing · head‑to‑head
The battle between the MOZA R21 Ultra and the MOZA R25 Ultra comes down to whether you need raw, headroom-heavy flagship power or a slightly more budget-friendly heavy-hitter. While both share the same physical footprint and design language, their real-world behavior at different torque levels sets them apart.
The MOZA R25 Ultra can feel surprisingly dull and less responsive when dialed down to mid-torque levels (10–14Nm) compared to dedicated mid-range bases. Meanwhile, the MOZA R21 Ultra has suffered from buggy firmware updates that temporarily disable force feedback entirely until rolled back.
Neither base features a USB passthrough, meaning third-party steering wheels require a separate coiled cable running directly to your PC. Additionally, if you experience sudden loss of detail after a MOZA Pit House update, disabling 'Hands Off Protection' usually restores the full force feedback profile.
For most sim racers, the MOZA R21 Ultra is the smarter purchase because 21Nm is already more than enough to cause physical fatigue. However, if you demand absolute flagship performance with zero clipping, or run heavy, large-diameter real steering wheels, the MOZA R25 Ultra justifies its premium.
| MOZA R21 Ultra Direct Drive Wheel Base | MOZA R25 Ultra Direct Drive Wheel Base | |
|---|---|---|
| Brand | MOZA | MOZA |
| Ecosystem | MOZA | MOZA |
| Starting Price | $699.00Best | $899.00 |
| Peak Torque | 21 Nm | 25 NmBest |
| Drive Type | direct | direct |
| Max Rotation | 2700 ° | 2700 ° |
| Connectivity | USB | USB-B |
| Software | MOZA Pit House | MOZA Pit House |
| Quick Release | D1-Spec | D1-Spec |
| Weight | 9 kg (19.8 lb)Best | 9.1 kg (20.1 lb) |
| Mounting | bottom, side, front | bottom, front, side |
| Price trend | Unchanged over 90 days | Unchanged over 90 days |