MOZA R21 Ultra | 21 Nm Direct Drive Wheelbase

Name: MOZA R21 Ultra 21 Nm – Direct Drive Wheelbase
Brand: MOZA Racing
SKU: RS090
Price: 729.99 EUR
Availability: InStock

MOZA R21 Ultra 21 Nm direct drive wheelbase for sim racing on PC

MOZA R21 Ultra — direct drive wheelbase with customisable RGB strips

MOZA R21 Ultra — aluminium housing of the 21 Nm direct drive wheelbase

MOZA R21 Ultra — 21 Nm direct drive wheelbase, perspective view

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3-year warranty

24/48 hour delivery (Iberian Peninsula)*

Personalized attention

*More information in Shipping Policy.

The MOZA R21 Ultra is a 21 Nm sustained-torque direct drive wheelbase for sim racing on PC, part of MOZA's flagship line-up, aimed at advanced and semi-professional drivers who want constant torque and fine control in endurance and competitive racing.

It packs a zero-cogging flat-wire motor with a 21-bit magnetic encoder (2,097,152 pulses per revolution) and intelligent thermal management with real-time monitoring, keeping the full 21 Nm with no throttling even in long sessions. Its die-cast aluminium unibody housing delivers torsional rigidity, and the slip ring is rated for over 10 million rotations with 2 M/s data transfer.

Key features of the MOZA R21 Ultra

21 Nm of sustained torque with no throttling, ideal for endurance racing.
Zero-cogging flat-wire motor for an ultra-smooth turn even under heavy loads.
21-bit magnetic encoder with 2,097,152 pulses per revolution for surgical precision.
2 customisable RGB light strips (16.7 million colours) configured from MOZA Pit House.
Intelligent thermal management with real-time monitoring and automatic torque regulation.
Versatile bottom, front and side mounting, with Hand-Off Protection.
Full control from MOZA Pit House (PC) and the MOZA App (iOS/Android) with custom profiles.

Technical specifications

Feature	Detail
Platform	PC
FFB system	Direct Drive
Sustained torque	21 Nm
Rated power	360 W
Encoder	21-bit magnetic (2,097,152 PPR)
Motor	Zero-cogging flat-wire
USB refresh rate	1000 Hz
Input voltage	110–220 V AC → 36 V DC
Temperature control	Real-time monitoring and torque regulation
Lighting	2 RGB light strips (16.7 million colours)
Quick Release	MOZA Quick Release (supported)
Ports	Power, PC, pedals, dashboard, shifter, handbrake, E-stop
Housing	Die-cast aluminium unibody; plastic rear cover
Dimensions (L × W × H)	248.8 × 140 × 135 mm
Weight	9.0 kg
Mounting	Bottom, front and side (optional adjustable bracket)
Control app	MOZA Pit House + MOZA App
Firmware	Online updatable
In the box	Power supply, data cable, bolt kit, manual, warranty card

Compatibility

The MOZA R21 Ultra is compatible with PC only. It is not compatible with consoles: unlike the R25 Ultra, the R21 Ultra has no Xbox route. It is part of the MOZA ecosystem and works with the brand's sim racing wheels, pedals, shifters, handbrake and dashboards through the MOZA Quick Release and its dedicated ports.

Frequently asked questions

Does the MOZA R21 Ultra work on console?

No. The R21 Ultra is PC-only and has no console compatibility route. If you need Xbox within the Ultra range, the option is the R25 Ultra paired with an Xbox-licensed MOZA wheel.

Is the 21 Nm peak or sustained?

It is 21 Nm of sustained torque, not a brief peak. The base maintains full force with no throttling even in long endurance sessions, thanks to its intelligent thermal management.

Who is it for?

For advanced and semi-professional drivers. 21 Nm sits in the upper range of direct drive: plenty of headroom for GT, formula, rally or endurance without reaching the extremes of the most powerful bases.

What does the zero-cogging flat-wire motor add?

A smoother, more natural continuous force, especially at low torque where you read load through your hands. It reduces cogging to almost imperceptible levels for a feel close to a real steering column.

What's in the box?

The R21 Ultra base, the power supply, the data cable, the bolt kit, the manual and the warranty card. The wheel and pedals are sold separately.

How are the RGB and force feedback configured?

From MOZA Pit House on PC and the MOZA App on iOS/Android: customisation of the two RGB strips, advanced FFB settings, per-game profiles and online firmware updates.

Buying your direct drive wheelbase from Simufy means buying with full guarantees

Official premium sim racing distributor in Spain and Portugal — over 70 brands
The only Official Fanatec out-of-warranty Repair Centre in Europe
Simucube Premium Reseller — one of only four in Europe
Shipping from our own 5,000 m² warehouse and Barcelona showroom
Specialised technical support and official warranty on every product
Tailored financing: leasing and renting available

Frequently asked questions

A pre-order product is not yet available for immediate delivery, but it is on its way and can be reserved in advance before its official availability. This guarantees you will get the product as soon as it is in stock. We recommend pre-ordering to make sure you don't miss out on a unit and have to wait for the next batch.

Availability dates for pre-order products are shown on the corresponding product page and also in our #pre-orders channel on Discord: https://discord.gg/simufy

When a product is in stock, it is available in our warehouses and can be shipped immediately after you place your order.

Absolutely. The products we offer are carefully selected to meet high quality standards. This ensures that the materials used are durable, safe and suited to their intended purpose.

Check the product page. It usually shows a message indicating availability, such as "Ships immediately" or the number of units available. If the product is not in stock, one of these statuses is usually shown: - Sold out: no units are available and you may have to wait for a restock. - Pre-order: the product can be reserved before it arrives at our warehouse.

No, every order is sent as a single shipment. If an order contains both in-stock and out-of-stock items, it will ship as soon as all of its items are in stock. If you want to receive the in-stock items right away, you will need to place separate orders or ask us to charge an additional shipping fee.

VISA or Mastercard credit cards, PayPal, Aplazame, Klarna or bank transfer.

Simufy gives every customer the option to defer payment for any or all of their orders through the financing providers Aplazame or Klarna.

Klarna offers financing for orders of up to €1,500, in up to 3 interest-free instalments.

Aplazame offers financing for orders of up to €3,000, in up to 24 instalments with interest. The down payment and subsequent instalments are fully flexible and up to you.

Yes, as long as the product is received in the same condition in which it was shipped. The refund will be issued after the returned product has been manually inspected and approved, using the same payment method used for the purchase. For more information, see our Returns Policy.